What does an acrylic coating system include?
A complete liquid-applied system may include surface cleaning, primer or base coat, reinforcement at details and a top coat. Use compatible primer, reinforcement, base coat and finish coat as a single specified system. We identify those components instead of describing a single top coat as the whole roof system. Substrate, application rate, cure conditions and required test patches are product-specific; a system used on one roof type cannot be assumed suitable for another.
For GAF Acrylic Top Coat, confirm approved substrates, positive drainage, surface preparation, detail repairs and adhesion testing in the current product instructions. Other acrylic systems can have different requirements, so identify the specified product before setting preparation and application steps. When SPF is the substrate, review the coating in context of the SPF roof system and its protective-layer requirements. A coating restoration evaluation should record the exact existing layer and proposed system, while silicone coating remains a separate chemistry with separate requirements.