A high-performance aromatic polyurethane binder designed to mix with SBR rubber granules to create a durable, shock-absorbing underlayer. Ideal for building a resilient cushion base before your top layer, it delivers strong bonding, impact absorption, and long-lasting stability for sports and fitness surfacing applications. Coverage reference: 5 gal ≈ 345 lb (1 gal ≈ 69 lb) depending on system and mix