Free Essays on Paints

 · Definition of Paint: The term â€Å"paint† and â€Å" surface coating† are often used interchangeably. Surface coating is the more general description of any material that may be applied as a thin continuous layer to a surface. Painting is distinguished from other forms of surface treatment such as electroplating, anodizing, and the lamination of the polymer film onto a surface. Paint is used to describe pigmented materials as distinct from clear films which are more properly called lacquers or varnishes. Paint is defined as â€Å"thin coatings applied to surfaces in liquid form, which gradually dry to become gradual solids†.  · Purpose of Paint: The purpose of paints and surface coatings is two-fold: 1. Aesthetic Purpose 2. Protective Purpose 3.  · Composition of Paint: à ¨Vehicle (Continuous phase): These are the components that give the paint a spread able body: 1. Binder:  · Description:  · Typical Function: -Provides the basis of continuous film, sealing or protecting the surface. -Bind together Paint or clear finish constituents -Convert liquid coating into solid film -Provides liquids with adhesive properties -Gives water resistant properties  · Criteria for selection: -method of application &cure -nature of substrate -conditions of use  · Types: 1. Drying oils: 2. Resins: -Natural -Synthetic -Oleo: a combination of oil and resins 3. Polymers: 2. Solvent/ Diluents:  · Description: -It is a colorless liquid incorporated in the paint -It is the means by which the paint may be applied -When the liquid does not dissolve the binder, it is called a diluent -It plays no long-term role in the paint film performance -Recently it is very rare that a single solvent be acceptable, and so mixtures of solvents are used. -It is avoided in a small number of compositions such as powder coatings and 100% polymerizable systems. In the polymerizable case a polymerizable monomer plays the role of solvent... Free Essays on Paints Free Essays on Paints  · Definition of Paint: The term â€Å"paint† and â€Å" surface coating† are often used interchangeably. Surface coating is the more general description of any material that may be applied as a thin continuous layer to a surface. Painting is distinguished from other forms of surface treatment such as electroplating, anodizing, and the lamination of the polymer film onto a surface. Paint is used to describe pigmented materials as distinct from clear films which are more properly called lacquers or varnishes. Paint is defined as â€Å"thin coatings applied to surfaces in liquid form, which gradually dry to become gradual solids†.  · Purpose of Paint: The purpose of paints and surface coatings is two-fold: 1. Aesthetic Purpose 2. Protective Purpose 3.  · Composition of Paint: à ¨Vehicle (Continuous phase): These are the components that give the paint a spread able body: 1. Binder:  · Description:  · Typical Function: -Provides the basis of continuous film, sealing or protecting the surface. -Bind together Paint or clear finish constituents -Convert liquid coating into solid film -Provides liquids with adhesive properties -Gives water resistant properties  · Criteria for selection: -method of application &cure -nature of substrate -conditions of use  · Types: 1. Drying oils: 2. Resins: -Natural -Synthetic -Oleo: a combination of oil and resins 3. Polymers: 2. Solvent/ Diluents:  · Description: -It is a colorless liquid incorporated in the paint -It is the means by which the paint may be applied -When the liquid does not dissolve the binder, it is called a diluent -It plays no long-term role in the paint film performance -Recently it is very rare that a single solvent be acceptable, and so mixtures of solvents are used. -It is avoided in a small number of compositions such as powder coatings and 100% polymerizable systems. In the polymerizable case a polymerizable monomer plays the role of solvent...