DSB 800TM is a low modulus, high performance, one-part, non- sag silicone joint sealant. DSB 900TM-SL is an ultra-low modulus, high performance, one-part, self-leveling, silicone joint sealant. Each product can be used to seal new or existing concrete and asphalt joints and both are formulated for use on highway, airport, parking structures and bridge joints where high movement occurs.