POR-15 Part B Matte Clear Coat Hardener Activator is a urethane catalyst that activates the curing process for POR-15 two-part coatings. POR-15 Part B Matte Clear Coat Hardener Activator is a moisture-reactive compound and must be stored in an air-tight, full to the brim container or shelf life will be diminished considerably.

Mixing Directions: See accompanying container Matte Clear Coat (Part A) for mixing directions.