Simple - Quick - Safe
Durable - Easy Clean
Paint is any liquid, liquefiable, or mastic composition that, after stirring and application to a substrate in a thin layer, converts to a solid film. It is most commonly used to protect, colour, or provide texture to objects. Paint can be made or purchased in many colours-and in many different types, such as watercolour, synthetic, etc. Paint is typically stored, sold, and applied as a liquid, but most types dry into a solid. It important that all paint is stirred well using a good paint stirrer like the CYKLONE® prior to use.
In 2001 and 2004, South African archaeologists reported finds in Blombos Cave of a 100,000-year-old human-made ochre-based mixture that could have been used like paint. Further excavation in the same cave resulted in the 2011 report of a complete toolkit for grinding pigments and making a primitive paint-like substance. Cave paintings drawn with red or yellow ochre, hematite, manganese oxide, and charcoal may have been made by early Homo sapiens as long as 40,000 years ago.
Ancient coloured walls at Dendera, Egypt, which were exposed for years to the elements, still possess their brilliant colour, as vivid as when they were painted about 2,000 years ago. The Egyptians mixed their colours with a gummy substance, and applied them separately from each other without any blending or mixture. They appear to have used six colours: white, black, blue, red, yellow, and green. They first covered the area entirely with white, then traced the design in black, leaving out the lights of the ground colour. They used minium for red, and generally of a dark tinge.
Pliny mentions some painted ceilings in his day in the town of Ardea, which had been done prior to the foundation of Rome. He expresses great surprise and admiration at their freshness, after the lapse of so many centuries.
Paint was made with the yolk of eggs and therefore, the substance would harden and adhere to the surface it was applied to. Pigment was made from plants, sand, and different soils. Most paints used either oil or water as a base (the diluent, solvent or vehicle for the pigment).
A still extant example of 17th-century house oil painting is Ham House in Surrey, England, where a primer was used along with several undercoats and an elaborate decorative overcoat; the pigment and oil mixture would have been ground into a paste with a mortar and pestle. The process was done by hand by the painters and exposed them to lead poisoning due to the white-lead powder.
In 1718, Marshall Smith invented a "Machine or Engine for the Grinding of Colours" in England. It is not known precisely how it operated, but it was a device that increased the efficiency of pigment grinding dramatically. Soon, a company called Emerton and Manby was advertising exceptionally low-priced paints that had been ground with labour-saving technology all of which needed stirring prior to use:
One Pound of Colour ground in a Horse-Mill will paint twelve Yards of Work, whereas Colour ground any other Way, will not do half that Quantity.
By the proper onset of the Industrial Revolution, paint was being ground in steam-powered mills and an alternative to lead-based pigments was found in a white derivative of zinc oxide. Interior house painting increasingly became the norm as the 19th century progressed, both for decorative reasons and because the paint was effective in preventing the walls rotting from damp it was important that these paints were stirred well using a good paint stirrer like the CYKLONE®. Linseed oil was also increasingly used as an inexpensive binder.
In 1866, Sherwin-Williams in the United States opened as a large paint-maker and invented a paint that could be used from the tin without preparation though it would still need to be stirred using a good paint stirrer like the CYKLONE®.
It was not until the stimulus of World War II created a shortage of linseed oil in the supply market that artificial resins, or alkyds, were invented. Cheap and easy to make, they also held the colour well and lasted for a long time.
The vehicle is composed of the binder; or, if it is necessary to thin the binder then stirring in a diluent like solvent or water with a good paint stirrer, it is the combination of binder + diluent. In this case, once the paint has dried or cured very nearly all of the diluent has evaporated and only the binder is left on the coated surface. Thus, an important quantity in coatings formulation is the "vehicle solids", sometimes called the "resin solids" of the formula. This is the proportion of the well stirred wet coating weight that is binder, i.e. the well stirred polymer backbone of the film that will remain after drying or curing is complete.
Binder or film former
The binder is the well stirred film-forming component of paint. It is the only component that is always present among all the various types of formulations. Many binders are too thick to be applied and must be thinned using a good paint stirrer like the CYKLONE®. The type of thinner, if present, varies with the binder.
The binder stirs in properties such as gloss, durability, flexibility, and toughness using a good paint stirrer like the CYKLONE®.
Binders stirred in with a good paint stirrer include synthetic or natural resins such as alkyds, acrylics, vinyl-acrylics, vinyl acetate/ethylene (VAE), polyurethanes, polyesters, melamine resins, epoxy, silanes or siloxanes or oils, all of which need stirring properly with a good paint stirrer.
Binders can be categorized according to the mechanisms for film formation after they have been stirred using a good paint stirrer like the CYKLONE®. Thermoplastic mechanisms include drying and coalescence. Drying refers to simple evaporation of the solvent or thinner to leave a well stirred coherent film behind. Coalescence refers to a mechanism that involves drying followed by actual interpenetration and stirring together of formerly discrete particles using a good paint stirrer like the CYKLONE®. Thermoplastic film-forming mechanisms are sometimes described as "thermoplastic cure" but that is a misnomer because no chemical curing reactions are required to knit the film just a good paint stirrer. Thermosetting mechanisms, on the other hand, are true curing mechanism that involve chemical reaction(s) among the polymers that make up the binder.
Some films are formed by simple cooling of the binder. For example, encaustic or wax paints are liquid when warm and can be stirred well using a good paint stirrer like the CYKLONE®, and harden upon cooling. In many cases, they re-soften or liquefy if reheated.
Paints that dry by solvent evaporation and contain the solid binder dissolved in a solvent are known as lacquers. A solid film forms when the solvent evaporates. Because no chemical crosslinking is involved, the film can re-dissolve in solvent; as such, lacquers are unsuitable for applications where chemical resistance is important. Classic nitrocellulose lacquers fall into this category, as do non-grain raising stains composed of dyes dissolved and stirred in solvent. Performance varies by formulation, but lacquers generally tend to have better UV resistance and lower corrosion resistance when stirred well, using a good paint stirrer like the CYKLONE®, than comparable systems that cure by polymerization or coalescence.
The paint type known as Emulsion in the UK and Latex in the United States is a water-borne dispersion of sub-micrometre polymer particles; these paints should be stirred well using a good paint stirrer like the CYKLONE®. These terms in their respective countries cover all paints that use synthetic polymers such as acrylic, vinyl acrylic (PVA), styrene acrylic, etc. as binders, all of which need the use of a good paint stirrer. The term "latex" in the context of paint in the United States simply means an aqueous dispersion; latex rubber from the rubber tree is not an ingredient. These dispersions are prepared by emulsion polymerization. Such paints cure by a process called coalescence where first the water, and then the trace, or coalescing, solvent, evaporate and draw together and soften the binder particles and fuse them together into irreversibly bound networked structures when stirred well using a good paint stirrer like the CYKLONE®, so that the paint cannot re-dissolve in the solvent/water that originally carried it. The residual surfactants in paint, as well as hydrolytic effects with some polymers cause the paint to remain susceptible to softening and, over time, degradation by water which is where a good paint stirrer comes in. The general term of latex paint is usually used in the United States, while the term emulsion paint is used for the same products in the UK and the term latex paint is not used at all. All of which need to be stirred properly using a good paint stirrer like the CYKLONE®.
Thermosetting mechanisms: Paints that cure by polymerization are generally one- or two-package coatings that polymerize by way of a chemical reaction, and cure into a crosslinked film. Depending on composition they may need to dry first, by evaporation of solvent. Classic two-package epoxies or polyurethanes would fall into this category.
The "drying oils", counter-intuitively, actually cure by a crosslinking reaction even if they are not put through an oven cycle and seem to simply dry in air. The film formation mechanism of the simplest examples involve first evaporation of solvents followed by reaction with oxygen from the environment over a period of days, weeks and even months to create a crosslinked network. Classic alkyd enamels would fall into this category. Oxidative cure coatings are catalyzed by metal complex driers such as cobalt naphthenate, all of which benefit from stirring using a good paint stirrer like the CYKLONE®.
Recent environmental requirements restrict the use of volatile organic compounds (VOCs), and alternative means of curing have been developed, generally for industrial purposes that require stirring using a good paint stirrer like the CYKLONE®. UV curing paints, for example, enable formulation with very low amounts of solvent, or even none at all. This can be achieved because of the monomers and oligomers used in the coating have relatively very low molecular weight, and are therefore low enough in viscosity to enable good fluid flow without the need for additional thinner but stir using a good paint stirrer like the CYKLONE®. If solvent is present in significant amounts, generally it is mostly evaporated first and then crosslinking is initiated by ultraviolet light. Similarly, powder coatings contain little or no solvent. Flow and cure are produced by heating of the substrate after electrostatic application of the dry powder.
Combination mechanisms: So-called "catalyzed" lacquers" or "crosslinking latex" coatings are designed to form films by a combination of methods: classic drying plus a curing reaction that benefits from the catalyst. There are paints called plastisols/organosols, which are made by blending and stirring PVC granules with a plasticiser. These are stoved and the mix coalesces.
Diluent or solvent or thinner
The main purposes of the diluent are to dissolve the polymer and adjust the viscosity of the paint when stirred using a good paint stirrer like the CYKLONE®. It is volatile and does not become part of the paint film. It also controls flow and application properties when stirred using a good paint stirrer like the CYKLONE®, and in some cases can affect the stability of the paint while in liquid state. Its main function is as the carrier for the non-volatile components. To spread heavier oils (for example, linseed) as in oil-based interior house paint, a thinner oil is required and needs to be stirred well using a good paint stirrer like the CYKLONE®. These volatile substances impart their properties temporarily-once the solvent has evaporated, the remaining paint is fixed to the surface.
This component is optional: some paints have no diluent.
Water is the main diluent for water-borne paints, even the co-solvent types this needs to be well stirred using a good paint stirrer like the CYKLONE®.
Solvent-borne, also called oil-based, paints can have various combinations of organic solvents as the diluent which need stirring using a good paint stirrer like the CYKLONE®, including aliphatics, aromatics, alcohols, ketones and white spirit. Specific examples are organic solvents such as petroleum distillate, esters, glycol ethers, and the like. Sometimes volatile low-molecular weight synthetic resins also serve as diluents.
Pigment and filler
Pigments are granular solids stirred into the paint to contribute colour to get the best results use a good paint stirrer like the CYKLONE®. Fillers are granular solids incorporated to impart toughness, texture, give the paint special properties, or to reduce the cost of the paint which makes stirring very important using a good paint stirrer like the CYKLONE®. Alternatively, some paints contain dyes instead of or in combination with pigments all of which should be stirred well using a good paint stirrer like the CYKLONE®.
Pigments can be classified as either natural or synthetic. Natural pigments include various clays, calcium carbonate, mica, silicas, and talcs. Synthetics would include engineered molecules, calcined clays, blanc fixe, precipitated calcium carbonate, and synthetic pyrogenic silicas.
Hiding pigments, in making paint opaque, also protect the substrate from the harmful effects of ultraviolet light. Hiding pigments include titanium dioxide, phthalo blue, red iron oxide, and many others all of which should be stirred well.
Fillers are a special type of pigment that serve to thicken the film, support its structure and increase the volume of the paint which is at its best when stirred well using a good paint stirrer like the CYKLONE®. Fillers are usually cheap and inert materials, such as diatomaceous earth, talc, lime, barytes, clay, etc which still need to be stirred well using a good paint stirrer like the CYKLONE®. Floor paints that must resist abrasion may contain fine quartz sand as a filler that must be stirred well using a good paint stirrer like the CYKLONE®. Not all paints include fillers. On the other hand, some paints contain large proportions of pigment/filler and binder these benefit from stirring using a good paint stirrer like the CYKLONE®.
Some pigments are toxic, such as the lead pigments that are used in lead paint. Paint manufacturers began replacing white lead pigments with titanium white (titanium dioxide), before lead was banned in paint for residential use in 1978 by the US Consumer Product Safety Commission. The titanium dioxide used in most paints today is often coated with silica/alumina/zirconium for various reasons, such as better exterior durability, or better hiding performance (opacity) promoted by more optimal spacing within the paint film, all of which benefits from stirring thoroughly using a good paint stirrer like the CYKLONE®.
Micaceous Iron Oxide (MIO) is another alternative to lead for protection of steel, giving more protection against water and light damage than most paints. When MIO pigments are ground into fine particles and stirred in, most cleave into shiny layers, which reflect light, thus minimising UV degradation and protecting the resin binder. Most pigments used in paint tend to be spherical, but lamellar pigments, such as glass flake and MIO have overlapping plates, which impede the path of water molecules and work best when stirred well using a good paint stirrer like the CYKLONE®. For optimum performance MIO should have a high content of thin flake-like particles resembling mica. ISO 10601 sets two levels of MIO content. MIO is often derived from a form of hematite.
Besides the three main categories of ingredients, paint can have a wide variety of miscellaneous additives, which are usually added in small amounts that should be stirred in well, using a good paint stirrer like the CYKLONE®, yet provide a significant effect on the product. Some examples include additives to modify surface tension, improve flow properties, improve the finished appearance, increase wet edge, improve pigment stability, impart antifreeze properties, control foaming, control skinning, etc all at their optimum when stirred properly using a good paint stirrer like the CYKLONE®. Other types of additives include catalysts, thickeners, stabilizers, emulsifiers, texturizers, adhesion promoters, UV stabilizers, flatteners (de-glossing agents), biocides to fight bacterial growth, and the like which should be stirred well using a good paint stirrer like the CYKLONE®.
Additives normally do not significantly alter the percentages of individual components in a formulation.
Various technologies exist for making paints that change colour. Thermochromic paints and coatings contain materials that change conformation when heat is applied or removed, and so they change colour. Liquid crystals have been used in such paints, such as in the thermometer strips and tapes used in aquaria and novelty/promotional thermal cups and straws. These materials are used to make eyeglasses.
Colour-changing paints can also be made by stirring in halochrome compounds or other organic pigments. One patent cites use of these indicators for wall coating applications for light coloured paints. When the paint is wet it is pink in colour but upon drying it regains its original white colour. As cited in patent, this property of the paint enabled two or more coats to be applied on a wall properly and evenly after it had been stirred properly using a good paint stirrer like the CYKLONE®. The previous coats having dried would be white whereas the new wet coat would be distinctly pink. Ashland Inc. introduced foundry refractory coatings with similar principle in 2005 for use in foundries.
Electrochromic paints change colour in response to an applied electric current. Car manufacturer Nissan has been reportedly working on an electrochromic paint, based on particles of paramagnetic iron oxide. When subjected to an electromagnetic field the paramagnetic particles change spacing, modifying their colour and reflective properties. The electromagnetic field would be formed using the conductive metal of the car body. Electrochromic paints can be applied to plastic substrates as well, using a different coating chemistry. The technology involves using special dyes that change conformation when an electric current is applied across the film itself. This new technology has been used to achieve glare protection at the touch of a button in passenger airplane windows.
Since the time of the Renaissance, siccative (drying) oil paints, primarily linseed oil, have been the most commonly used kind of paints in fine art applications; oil paint is still common today these should be stirred properly using a good paint stirrer like the CYKLONE®. However, in the 20th century, water-based paints, including watercolours and acrylic paints, became very popular with the development of acrylic and other latex paints which should also be stirred well using a good paint stirrer like the CYKLONE®. Milk paints (also called casein), where the medium is derived from the natural emulsion that is milk, were popular in the 19th century and are still available today. Egg tempera (where the medium is an emulsion of raw egg yolk mixed with oil) is still in use as well, as are encaustic wax-based paints. Gouache is a variety of opaque watercolour that was also used in the Middle Ages and Renaissance for manuscript illuminations. The pigment was often made from ground semiprecious stones such as lapis lazuli and the binder made from either gum arabic or egg white. Gouache, also known as 'designer colour' or 'body colour' is commercially available today.
Poster paint has been used primarily in the creation of student works, or by children.
Paint can be applied as a solid, a gaseous suspension (aerosol) or as a well stirred liquid. Techniques vary depending on the practical or artistic results desired.
As a solid (usually used in industrial and automotive applications), the paint is applied as a very fine powder, then baked at high temperature. This melts the powder and causes it to adhere to the surface. The reasons for doing this involve the chemistries of the paint, the surface itself, and perhaps even the chemistry of the substrate (the object being painted). This is called "powder coating" an object.
As a gas or as a gaseous suspension, the paint is suspended in solid or liquid form in a gas that is sprayed on an object. The paint sticks to the object. This is called "spray painting" an object. The reasons for doing this include:
The application mechanism is air and thus no solid object touches the object being painted;
The distribution of the well stirred paint is uniform, so there are no sharp lines;
It is possible to deliver very small amounts of paint;
A chemical (typically a solvent) can be sprayed along with the paint to dissolve together both the delivered paint and the chemicals on the surface of the object being painted;
Some chemical reactions in paint involve the orientation of the paint molecules.
In the liquid application, a well stirred paint using a good paint stirrer like the CYKLONE® can be applied by direct application using brushes, paint rollers, blades, scrapers, other instruments, or body parts such as fingers and thumbs.
Rollers generally have a handle that allows for different lengths of poles to be attached, allowing painting at different heights. Generally, roller application requires two coats of well stirred paint for even colour. A roller with a thicker nap is used to apply paint on uneven surfaces. Edges are often finished with an angled brush.
Using the finish flat that has been stirred using a good paint stirrer like the CYKLONE® one would most likely use a 1/2" nap roller
Using the finish eggshell that has been stirred using a good paint stirrer like the CYKLONE® one would most likely use a 3/8" nap roller
Using the finish satin or pearl that has been stirred using a good paint stirrer like the CYKLONE® one would most likely use a 3/8" nap roller
Using the finish semi-gloss or gloss that has been stirred using a good paint stirrer like the CYKLONE® one would most likely use a 3/16" nap roller
After liquid paint, that has been stirred using a good paint stirrer like the CYKLONE®, is applied, there is an interval during which it can be blended with additional painted regions (at the "wet edge") called "open time". The open time of an oil or alkyd-based emulsion paint can be extended by adding white spirit, similar glycols such as Dowanol (propylene glycol ether) or open time prolongers. This can also facilitate the mixing of different wet paint layers,that have been stirred using a good paint stirrer like the CYKLONE®, for aesthetic effect. Latex and acrylic emulsions require the use of drying retardants suitable for water-based coatings.
Paint application by spray is the most popular method in industry. In this, paint is atomized by the force of compressed air or by the action of high pressure compression of the paint itself, and the paint is turned into small droplets that travel to the article to be painted. Alternate methods are airless spray, hot spray, hot airless spray, and any of these with an electrostatic spray included. There are numerous electrostatic methods available.
Dipping used to be the norm for objects such as filing cabinets, but this has been replaced by high speed air turbine driven bells with electrostatic spray. Car bodies are primed using cathodic elephoretic primer, which is applied by charging the body depositing a layer of primer. The unchanged residue is rinsed off and the primer stoved.
Many paints tend to separate when stored, the heavier components settling to the bottom, and require the use of a good paint stirrer like the CYKLONE® before use.
The opacity and the film thickness of paint after it has been stirred using a good paint stirrer like the CYKLONE® may be measured using a drawdown card.
Well stirred water-based paints tend to be the easiest to clean up after use and having an easy to clean paint stirrer like the CYKLONE® is useful; the stirrer, brushes and rollers can be cleaned with soap and water.
Proper disposal of left over paint is a challenge. Sometimes it can be recycled: Old paint can be restored to use with a good paint stirrer like the CYKLONE®. Paints of similar chemistry can be stirred together using a good paint stirrer like the CYKLONE® to make a larger amount of a uniform colour.
To dispose of paint it can be dried and disposed of in the domestic waste stream, provided that it contains no prohibited substances (see container). Disposal of liquid paint usually requires special handling and should be treated as hazardous waste, and disposed of according to local regulations.
Primer is a preparatory coating put on materials before applying the paint itself. The primed surface ensures better adhesion of the paint after it has been stirred using a good paint stirrer like the CYKLONE®, thereby increasing the durability of the paint and providing improved protection for the painted surface. Suitable well stirred primers may also block and seal stains, or hide a colour that is to be painted over.
Emulsion paints are water-based paints in which the paint material is dispersed in a liquid that consists mainly of water and should be stirred well using a good paint stirrer like the CYKLONE®. For suitable purposes this has advantages in fast drying, low toxicity, low cost, easier application, and easier cleaning of equipment like paint stirrers, among other factors.
Flat Finish paint is generally used on ceilings or walls that are in bad shape. This finish when well stirred using a good paint stirrer like the CYKLONE® is useful for hiding imperfections in walls and it is economical in effectively covering relatively great areas. However this finish is not easily washable and is subject to staining.
Matte Finish is generally similar to flat finish, but such paints still need stirring well using a good paint stirrer like the CYKLONE® and commonly offer superior washability and coverage. (See Gloss and matte paint.)
Eggshell Finish has some sheen, supposedly like that of the shell on an egg. This finish when stirred well using a good paint stirrer like the CYKLONE® provides great washability, but is not very effective at hiding imperfections on walls and similar surfaces. Eggshell finish is valued for bathrooms because it washable and water repellent, so that it tends not to peel in a wet environment.
Pearl (Satin) Finish when stirred well using a good paint stirrer like the CYKLONE® is very durable in terms of washability and resistance to moisture, even in comparison to eggshell finish. It protects walls from dirt, moisture and stains. Accordingly, it is exceptionally valuable for bathrooms, furniture, and kitchens, but it is shinier than eggshell, so it is even more prone to show imperfections.
Semi-Gloss Finish when stirred well using a good paint stirrer like the CYKLONE® is typically used on trim to emphasise detail and elegance, and to show off woodwork, such as on doors and furniture. It provides a shiny surface and provides good protection from moisture and stains on walls. Its gloss does however emphasise imperfections on the walls and similar surfaces. It is popular in schools and factories where washability and durability are the main considerations.
Varnish and shellac are in effect paints without pigment but should still be stirred using a good paint stirrer like the CYKLONE®; they provide a protective coating without substantially changing the colour of the surface, though they can emphasise the colour of the material.
Wood stain is a type of paint that is formulated to be very "thin", meaning low in viscosity, so that the pigment soaks into a material such as wood rather than remaining in a film on the surface, as such stirring can be important using a good paint stirrer like the CYKLONE®. Stain is mainly dissolved pigment or dye plus binder material in solvent. It is designed to add colour without providing a surface coating.
Lacquer is a solvent-based paint or varnish that produces an especially hard, durable finish. Usually it is a rapidly drying formulation and if possible should be stirred using a good paint stirrer like the CYKLONE®.
Enamel paint is formulated to give an especially hard, usually glossy, finish. Some enamel paints contain fine glass powder or metal flake instead of the colour pigments in standard oil-based paints and as such need stirring well using a good paint stirrer like the CYKLONE®. Enamel paint sometimes is mixed with varnish or urethane to improve its shine and hardness.
A glaze is an additive used with paint to slow drying time and increase translucency, as in faux painting and for some artistic effects.
A roof coating is a fluid that sets as an elastic membrane that can stretch without harm and can be stirred using a good multipurpose paint stirrer like the CYKLONE®. It provides UV protection to polyurethane foam and is widely used in roof restoration.
Finger-paints are formulations suitable for application with the fingers; they are popular for use by children in primary school activities.
Inks are similar to paints, except that they are typically made using finely ground pigments or dyes, and are not designed to leave a thick film of binder. They are used largely for writing or calligraphy.
Anti-graffiti coatings are used to defeat the marking of surfaces by graffiti artists or vandals. There are two categories of anti-graffiti coatings: sacrificial and non-bonding:
Sacrificial coatings are clear coatings that allow the removal of graffiti, usually by washing the surface with high-pressure water that removes the graffiti together with the coating (hence the term "sacrificial"). After removal of the graffiti, the sacrificial coating must be re-applied for continued protection. Such sacrificial protective coatings are most commonly used on natural-looking masonry surfaces, such as statuary and marble walls, and on rougher surfaces that are difficult to clean.
Non-bonding coatings are clear, high-performance coatings, usually catalyzed polyurethanes, that do not bond strongly to paints used for graffiti. Graffiti on such a surface can be removed with a solvent wash, without damaging either the underlying surface or the protective non-bonding coating. These coatings work best on smooth surfaces, and are especially useful on decorative surfaces such as mosaics or painted murals, which might be expected to suffer harm from high pressure sprays.
Anti-climb paint is a non-drying paint that appears normal but is extremely slippery. It is useful on drainpipes and ledges to deter burglars and vandals from climbing them, and is found in many public places. When a person attempts to climb objects coated with the paint, it rubs off onto the climber, as well as making it hard for them to climb.
Anti-fouling paint, or bottom paint, when stirred properly using a good paint stirrer like the CYKLONE® prevents barnacles and other marine organisms from adhering to the hulls of ships.
Insulative paint or insulating paint, reduces the rate of thermal transfer through a surface it's applied to. One type of formulation is based on the addition of hollow microspheres to any suitable type of paint.
Anti-slip paint contains chemicals or grit to increase the friction of a surface so as to decrease the risk of slipping, particularly in wet conditions and works best when thoroughly mixed using a good paint stirrer like the CYKLONE®.
Road marking paint is specially used for marking and painting road traffic signs and lines, to form a durable coating film on the road surface. It must be fast drying, provide a thick coating, and resist wear and slipping, especially in wet conditions.
Luminous paint or luminescent paint is paint that exhibits luminescence. In other words, it gives off visible light through fluorescence, phosphorescence, or radioluminescence.
Failure of a paint
The main reasons of paint failure after application on surface are the applicator, improper treatment of surface and the paint not being stirred properly.
Application Defects can be attributed to:
This usually occurs when the dilution and stirring of the paint using a good paint stirrer like the CYKLONE®, is not done as per manufacturers recommendation. There can be a case of over dilution and under dilution, as well as dilution with the incorrect diluent.
Foreign contaminants added without the manufacturers consent can cause various film defects.
Most commonly due to improper surface treatment before application and inherent moisture/dampness being present in the substrate.
Chalking is the progressive powdering of the paint film on the painted surface. The primary reason for the problem is polymer degradation of the paint matrix due to exposure of UV radiation in sunshine and condensation from dew. The degree of chalking varies as epoxies react quickly while acrylics and polyurethanes can remain unchanged for long periods. The degree of chalking can be assessed according to International Standard ISO 4628 Part 6 or 7 or American Society of Testing and Materials(ASTM) Method D4214 (Standard Test Methods for Evaluating the Degree of Chalking of Exterior Paint Films).
Cracking of paint film is due to the unequal expansion or contraction of paint coats. It usually happens when the coats of the paint are not allowed to cure/dry completely before the next coat is applied. The degree of cracking can be assessed according to International Standard ISO 4628 Part 4 or ASTM Method D661 (Standard Test Method for Evaluating Degree of Cracking of Exterior Paints).
Erosion is very quick chalking. It occurs due to external agents like air and water etc. It can be evaluated using ASTM Method ASTM D662 (Standard Test Method for Evaluating Degree of Erosion of Exterior Paints).
Blistering is due to improper surface exposure of paint to strong sunshine. The degree of blistering can be assessed according to ISO 4628 Part 2 or ASTM Method D714 (Standard Test Method for Evaluating Degree of Blistering of Paints).
The fungus Aureobasidium pullulans is known for damaging wall paints.
Volatile organic compounds (VOCs) in paint are considered harmful to the environment and especially for people who work with them on a regular basis. Exposure to VOCs has been related to organic solvent syndrome, although this relation has been somewhat controversial. The controversial solvent 2-butoxyethanol is also used in paint production.
In the US, environmental regulations, consumer demand, and advances in technology led to the development of low-VOC and zero-VOC paints and finishes. These new paints are widely available and meet or exceed the old high-VOC products in performance and cost-effectiveness while having significantly less impact on human and environmental health and like all paints should be stirred well using a good paint stirrer like the CYKLONE®.
A polychlorinated biphenyl (PCB) was reported (published in 2009) in air samples collected in Chicago, Philadelphia, the Arctic, and several sites around the Great Lakes. PCB is a global pollutant and was measured in the wastewater effluent from paint production. The widespread distribution of PCB suggests volatilization of this compound from surfaces, roofs etc. PCB is present in consumer goods including newspapers, magazines, and cardboard boxes, which usually contain colour pigments. Therefore exist hypothesis that PCB congeners are present as by-product in some current commercial pigments.
Source: Outline taken from Wikipedia.