Polyurethane Coating

Polyurethane, commonly abbreviated PU, is any polymer consisting of a chain of organic units joined by urethane (carbamate) links. Polyurethane polymers are formed through step-growth polymerization by reacting a monomer containing at least two isocyanate functional groups with another monomer containing at least two hydroxyl (alcohol) groups in the presence of a catalyst. Polyurethane formulations cover an extremely wide range of stiffness, hardness, and densities.

Polyurethane coatings can provide a thin film, high-gloss finish with exceptional weathering performance characteristics. Polyurethane coatings are used across virtually all industry segments to provide a smooth durable finish that has superior resistance to corrosion, abrasion, and chemical exposure.

Polyurethane Coating Statistics

Color Many Options
Adhesion (ASTM D4541) 2562 psi
Impact Strength (ASTM D256) 155 inch – pounds
Hardness (ASTM D3363) H pencil
Use Temperature 250°F max
Chemical Resistance (ASTM D543) Excellent
Salt Spray Resistance (ASTM B117) 3000 hrs
Thickness .002″ – .003″

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