RD 3000 Advanced Blacktop & Roof Sealant is a low-VOC sealant with a specially formulated technology allowing it to be exposed to water after only 2 hours without washing out. Also formulated with advanced MaxFlex Technology - It won"t crack or shrink and provides excellent adhesion, flexibility and durability for a waterproof seal.Low-VOCFlexible and DurableWaterproof sealExcellent adhesion