Paint Glossary

ACRYLIC:
A type of synthetic polymer used as the binder for high-performance water-based paints and caulks. Some acrylic polymers are used in auto finishes, appliance coatings, etc.

BINDER:
1. A component of paint that "binds" the pigment particles into a uniform, continuous paint film, and makes the paint adhere to the surface. The nature and amount of binder helps determine most of the paint's performance properties - washability, toughness, adhesion, color retention, and durability. 2. In caulk, a component that "binds" the pigment particles into a homogeneous compound and makes the caulk adhere to the surface. The main performance properties of caulk - durability, adhesion, and flexibility at low temperatures - are determined by the binder.

CHALKING:
Deterioration of the surface of an exterior paint upon weathering into a faded, powdery substance. Chalking occurs when the paint's binder is degraded by harsh environmental conditions. Chalk should be removed prior to repainting.

DEGLOSSER:
A liquid preparation used to remove the gloss of a painted surface, to slightly roughen or give "tooth" to the substrate. This lends improved adhesion to the coating being applied.

ELASTICITY:
The ability of paint or caulk to expand and contract with the substrate without suffering damage or changes in its appearance. Expansion and contraction are usually caused by temperature and humidity fluctuations.

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