## Basic Terms for Paint Ingredients and Chemicals (2/3)

Painting anything makes our surrounding more attractive. It gives an attractive look and protects surfaces of wall, wood, metal, etc. For that, you need to know basic terms of paint ingredients and chemicals.

Terminologies are continued here…

#### 26. Flat Varnish:

It is a dead interior protective coating. It is made to dry with a dull surface by incorpora­ting suitable ingredients. It is totally transparent, flexible and also hide imperfections and enhance finished work.

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#### 27. Flatting Agent:

It is composed of small particles of solid material incorporated in paint or varnish to reduce the gloss of dried film.

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#### 28. Inert Pigment:

Inert pigments are remaining relatively inactive or chemically unchanged in which it is mixed. It does not change the shade of paint and it enhances opacity or texture at the lower texture.

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#### 29. Inhibitive Pigment:

It is formulated for retarding or prevents the corrosion of metal by chemical and/or electrochemical means. They provide active anti-corrosive coatings to the metal substrate. Red lead and zinc chromate are examples of inhibitive pigments as opposed to red iron oxide which has little or no inhibitive action.

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#### 30. Inhibitor:

A small proportion of chemical compound added in the paint to slow down or prevent unwanted chemical reactions such as oxidation, corrosion, skinning, mildew growth, skinning of paints or varnishes, etc.

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#### 31. Insulating Varnish:

An insulator varnish is often used to provide electrical insulation to electric wires, electric circuits, electrical equipment, etc.

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#### 32. Lacquer:

A liquid made of shellac dissolved in alcohol which dries solely by evaporation of the solvent and forms a hard, durable and protective coating for wood, metal, etc.

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#### 33. Latex:

It is a milky fluid found in nature. It is exuded from various plants and trees that coagulate on exposure to air.  The latex of the rubber tree is the chief source of natural rubber.

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#### 34. Linseed Oil:

It is an oil extruded from the flax seeds (Alsi seeds). It is added to paint to increase the drying time. The dryingis taking place because of evaporation when exposed to air (oxygen). It is extensively used as vehicle or binder in the paint industry.

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##### Also Read: Basic Components of Paint

The basic terms for paint ingredients and Chemicals do not end here. To read more terminologies go through this link.

#### 35. Mastic:

It is an adhesive or putty-like loosely water-proof plastic filler and sealant. It used in building works to fill the gaps.

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#### 36. Non-drying Oil:

It is an opposite of drying oil which does not harden when exposed to air. It has no film forming properties. Almond oil, coconut oil, olive oil, etc.  are non-drying oil.

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#### 37. Oleo-Resinous:

It is a varnish composed of naturally occurring resin and oil mixture which may be either natural and’ or synthetic. It gives a high gloss and become tougher, harder and more resistant when dry.

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#### 38. Petrifying Liquid:

It is an additive usually a dilute emulsion of oil and/or resin in water. It is used on a porous surface to seal the substrate before application of an oil-bound oil paint. It offers extra oil to the substrate and may also be used in place of water to thin the first coat of water paint before application to a porous surface.

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#### 39. Pigment:

Pigments are finely ground, natural or synthetic, inorganic or organic, insoluble in paint media. It is dispersed in a liquid and provides colour and other properties such as opacity, hardness, protective and decorative properties, etc. The term is often used to include extenders, as well as the white or coloured pigments.

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#### 40. Plaster Primer:

It is a water-based material and ideal surface preparation for plaster, masonry, etc. It has some good adhesive properties, it is quick drying, alkali resistant, it resists saponification and it is a sealer for interior and exterior walls. It penetrates the substrate for optimum adhesion and allows the underlying surface to breathe and expel moisture.

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#### 41. Plasticizer:

A non-volatile additive added to paint, varnish or lacquer to impart the flexibility of dried coating. It also controls the film formation process of coating and reduces the brittleness of film.

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The basic terms for paint ingredients and Chemicals do not end here. To read more terminologies go to this link.

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