Need crack sealant that is premium-quality, single-component, hot-applied joint and crack sealant composed of asphaltic resins and synthetic polymer rubber, needs to be 30 pound blocks. Need 1,872 blo... Need crack sealant that is premium-quality, single-component, hot-applied joint and crack sealant composed of asphaltic resins and synthetic polymer rubber, needs to be 30 pound blocks. Need 1,872 blocks total.