- Settore: Paints & varnishes
- Number of terms: 70
- Number of blossaries: 0
- Company Profile:
Represents chemists, chemical engineers, technologists, and supervisory production personnel in the decorative and protective coatings industry and allied industries.
The formulation of dome-shaped, hollow projections on paint, often caused by heat or moisture. Can also be caused by solvent entrapment in a paint film which has surface dried before the solvent has completely escaped.
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Also spelled "kalsomine." Essentially, chalk and glue ready to mix with water. Used as a decoration for interior surfaces. It will not withstand washing. In Britain, it is referred to as powdered distemper.
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Substance whose presence increases the rate of a chemical reaction. In some cases, the catalyst functions by not being consumed and regenerated; in other cases the catalyst seems to not enter the reaction and functions by the virtue of surface characteristics of some kind. A negative catalyst (inhibitor, retarder) slows down a chemical reaction.
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Formation of a friable powder on the surface of a paint film caused by the disintegration of the binding medium due to disruptive factors during weathering. The chalking of a paint film can be considerably affected by the choice and concentration of the pigment. It can also be affected by the choice of the binding medium.
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A dark brown to black cementitious material produced by the destructive distillation of bituminous coal.
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The resistance of a paint to flow. A paint with high consistency flows slowly; a paint with low consistency flows readily.
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The degree to which paint withstands the destructive effects of the environment to which it is exposed, especially harsh weather conditions. Durability has two aspects. Its protective properties safeguard the substrate from degradation. Its decorative properties allow the paint to retain its attractive appearance.
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An encrustation of soluble salts, commonly white, deposited on the surface of coatings, stone, brick, plaster, or mortar; usually caused by salts or free alkalies leached from mortar or adjacent concrete as moisture moves through it.
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