Term Description
Acrylic coating

A liquid coating system based on acrylic binders dispersed in water (occasionally in solvents) with pigments and several proprietary additives that cures by coalescence and air drying.
Aliphatic polyurethane coating

A polyurethane coating that contains a specific class of isocyanates based on a long straight chain molecular structure; typically used in finish coats that are exposed to the elements. It is noted for its good weather resistance.
Coating

(1) A layer of liquid material applied to a surface for protection or appearance; (2) A fluid material applied in the field as a film to the roof surface to provide weather protection to the original roof substrate; (3) a factory- or field-applied protective or decorative layer bonded to its substrate such as a metallic coating deposited mechanically, by hot dipping or electroplating, or a cured paint system application on sheet metal or building surface, or anodized finish on aluminum.
Coil coating

The application of a finish to a coil of metal using a continuous mechanical coating process.

Elastomeric coating

A coating that is capable of being stretched at least twice its original length (100 percent elongation) and recovering to its original dimensions.
Polyurethane coating

A one- or two-part solvent-based coating that contains polyisocyanate monomer and a hydroxyl containing resin, that reacts during cure to form elastomeric coating.
Roof coating

See ‚"coating,‚" (1).
Silicone coating

A liquid-applied elastomeric coating; the principal polymer in the dispersion contains more than 95 percent silicone resin.
Single-component (coating or foam)

Polyurethane or silicone material that does not require mixing of "A-component" and "B-component."