RockHard APAis a new revolutionary non-conventional exterior polyurea coating. It is 100% solids aliphatic/aromatic formulation using an aromatic isocyanate prepolymer and a aromatic free resin side delivering a UV stable, fast-cure and chemical resistant polyurea technology system. This product has been designed specifically to deliver the toughness and abrasion resistant properties of that of an aromatic polyurea but provides the capability of retaining color-fastness for a full range of pigmented colors. Unlike conventional aromatic polyureas, which in a white pigmented system turns yellow in hours when left in direct sun light, APA systems can withstand direct harsh sunlight experiencing no color change after 1 year. APA is available in several hardnesses and reactivities.
Typical applications would be exterior equipment, tank containers, pipe coatings, flooring and truck bedliners. APA-FH – Fast and Hard- 50 shore D and 20 seconds gel time APA-FF – Fast and Flex- 85 Shore A and 20 seconds gel time APA-SH - Slow and Hard- 50 Shore D and 180 seconds gel time APA-SF - Slow and Flex- 85 Shore A and 180 seconds gel time
RockHard APA products may be spray applied using high pressure heated plural equipment, low pressure heated equipment or using cold spray 2K cartridge equipment. Primary heaters set at 120-140F, Hose Heat 120-140 F and Pressure at gun around 2000 psi. All APA systems are 1/1 pbv ratio.