Paint Encyclopedia

The ability of a dry film coat to stick to a surface without blistering, lifting in thin layers or cracking. Adherence is probably the most important property of a paint. Wet adherence and ability of dry paint film to stick to a surface under wet conditions are generally important for exterior surface paints.
Synthetic polymers used in high performance acrylic based paints or water based paints. Like binder paints, acrylic resins enable coating to resist against chemicals and make their color durable thanks to light-fastness.
Acrylic Resin
Resins whose characteristics such as color and glossiness strength, alkali and oxidation strength, stiffness, adherence and binding strength and life of film are regarded as super and which have a distinguished place among coating formulas. They are resins which are generally formed with polymerization of derivatives of acrylic acid, meth acrylic acid, acrylonitrile as well as acrylic acids which contain esters of copolymers belonging to these. They are known as acrylate resins.
Acrylic Based Paint
Alternative definitions of Acrylic Based Paint are listed below:

Alternative definitions of Acrylic Based Paint are listed below: Constant dispersion of polymeric substance in an aqua environment, basically. Dispersion of plastic or resin in natural or synthetic water; synthetic is made with emulsion polymerization. (The point to take into account is that acrylic based paint is solid dispersed into water after polymerization; therefore it is not emulsion. Acrylic based paint and emulsion are used in similar ways in paint industry.)

They are paints which are thinned with water and made of synthetic binders like polyvinyl acetate or acrylic resins. In contrast to oil paint, acrylic based paints dry quickly, flow smoothly and can be cleaned with water easily. High performance acrylic based paints contain 100% acrylic resin.

They are paints which are thinned with water and most of their binder consists of acrylic resin. Styrene, epoxy, and polyvinyl acetate are the other binders added to the paint in order to give specific features and reduce cost.

100% Acrylic based Paint: They are paints which include only acrylic resin as binder and are thinned with water. Generally acrylic based paints with very high quality are for various architectural coatings. 100% acrylic based paints have superior characteristics like super adherence, long term durability, breathing capacity, alkali resistance, stiffness and glossiness.
Although they are used as binder in middle level equipment and marine enamels, they are the resins which are found in interior and exterior wood paints.
Basically, it is generated by mixing lime and water. They are used for interior surface decoration. They are not resistant against washing.
Binder binds pigment particles to form a steady paint film and enables paint to adhere on a surface. Type and quantity of a binder determine most of the performance characteristics of paint such as washability, stiffness, adherence and color durability. Binders, which are preferred for production of high quality, high performance acrylic based paints, are resins like acrylic polymers.
Loss of color occurred as a result of exposure to sunlight.
Level of resistance of paint against corrosive environmental effects, particularly heavy weather conditions it is exposed to. Durability has two effects. Protective characteristics protects surface against corrosion. Decorative characteristics make the effective appearance permanent.
Dispersion (Suspension)
It is the spreading process of very thin structured solid particles in a liquid homogeneously.
The ability of paint to expand and shrink without showing any change in its appearance or being damaged. Temperature changes cause expansion and shrinking. For instance, yellow pine expands at different rates according to its particle size. Elasticity is the key of durability. Acrylic binders are known with their elasticity.
Spreading process of liquid chemical substance in another liquid chemical substance with the help of an emulsifier.
Penetration of a liquid with very low viscosity into the depths of a solid surface, so that capillary gaps and pores may be filled. It provides a good adherence for the following application and increases the strength of the surface.
Enamels are topcoat paints characterized by the ability to form a smooth surface and which generally has high gloss degree but can also have low gloss degrees (e.g. matte enamels).
Formation of Film
The ability of paint to form a constant dry film layer. This process consists of vaporization of water and solvents and joining of binder particles. Constant dry film pushes the water.
It is a content which fills and expands the gaps of pigments and which is cheaper than titanium dioxide. Expander cannot be used without pigments. Some of the commonly used expanders are as follows: kaolin, calcite and silica.
Volume Solids
Division of total of pigment and binder volume to total volume. It is expressed as a percentage (%). High volume solids refer to thicker dry film layer, advanced hiding efficiency and high durability.
Airless Spraying
Atomization process of paint with high pressure from a hole by applying force. Particularly when paint is heated previously, it is the effect of solvents vaporizing and moving.
Thinner and binder together form the transfer vehicle of paint. Thinners are used in water, acrylic based paints; they vaporize as paint gets dry and allow smooth paint application. Thinners of oil paints are turpentine or alcohol (spirit).
Formulations in the form of concaves or convexes on paint, generally caused by heat and moisture. It may also be formed before solvent vaporizes completely, when solvent is caged in paint film whose surface gets dry.
Its presence accelerates the chemical reaction. Catalyst functions before being absorbed and regenerating in some cases. In other cases, it shows no marks of reaction and functions with the power of its surface characteristics. Negative catalyst (inhibitor) lowers the speed of chemical reaction.
Resistance of paint against flowing. Paints with high viscosity flow slowly while paints with low viscosity flow quickly.
It is the chemical causing mold which is a problem confronted commonly in humid climates.
Hiding efficiency
The ability of paint to cover and hide surfaces, previously applied paints and stains on a surface. Hiding efficiency is provided with pigments of a paint.
Smooth circle, natural or synthetic, inorganic or organic, insoluble dispersed particles (powder). These particles disperse in paint liquid and in addition to giving color to paint, they improve the basic characteristics of a paint including opacity, stiffness, durability and resistance against corrosion. This term also involves expanders as well as white and colorful pigments. The difference between pigment powders and paints are generally analyzed on the basis of solubility. During usage, pigments are materials which are insoluble and dispersible in substance while paints are materials which are soluble and found in the form of solution.
It is the process of chemical compounds in different structures which are formed by same or different monomers containing reactive structured double bonds with the help of heat, light or catalysts. A polymer structure is called HOMOPOLYMER if it consists of only one type of monomer and it is called COPOLYMER if it consists of different (two, three, etc.) types of monomers.
PVA (Polyvinyl Acetate)
It is a colorless, thermoplastic, water-soluble, resin-like high polymer which is generated as a result of polymerization of vinyl acetate and a catalyst. It is generally used as acrylic based paint binder in low quality water based coatings. It is a resin also used in the fields of adhesives, textiles and impregnation.
PVC (Pigment Volume Concentration)
The ratio of the volume of pigment to the volume of total nonvolatile materials (e.g. pigment and binder) present in a coating. This figure is usually expressed as a percentage (%).
The name given to the most of the products that are natural or synthetic, transparent and soluble. They are found in different colors. Synthetic resins with high molecule weight function as polymer.

Resins are solids, half-solids, fake (pseudo-mere) solids which have uncertain or very high molecule weights, gain fluidity under stress, have softening and melting ranges and show conchoidal fracture.

This term is generally used instead of any polymer which is the basic material for coatings and plastics.
Color Durability
The ability of paint to keep its color and resist against fading.
Blanching of paint which is exposed to light and heat.
Removing of paint from surface as stripes and leaves. It occurs as a result of loss of adherence similar to the lifting in layers.
Lifting in Layers
Separating of paint from a surface in pieces as a result of loss adherence or elasticity.
Lifting in Layers
Separating of paint from a surface in pieces as a result of loss adherence or elasticity.
The liquid part of paint where pigment is dispersed. Its consists of the joining of binder and thinner.
Easy-friable dust formation on paint film caused by the corrosive effects of weather conditions separating the binder environment. The chalk of paint film may be affected by selection and concentration of pigment. Selection of binder environment may also be effective.
Titanium dioxide (TiO2))
Chalk-free light white colored pigment with high opacity which is used in paints, plastics and rubbers as a principle pigment. It is derived from mineral ilmenite or natural titan dioxide ore.
Dusting (Blooming)
Accumulation and incrustation of generally white, soluble salts on surface coatings, stones, bricks, plastering or mortar. Salts and free alkalis leaking from the moisture, mortar or adjoining concrete cause this problem.
VOC (Volatile Organic Compounds)
Carbon compounds vaporizing under standard test results. Basically, all paint solvents except water are VOC. In order to avoid possible environmental and health effects, governments may determine a restriction for the amount of volatile organics in paint.
A washing method which enables us to remove dirt from the surface of dry paint film without harming facilitates our work.
The ability of coating to form a smooth paint film without showing of any traces of brush. Very high-quality acrylic based paints have super spreading capacity.
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