Material Specifications

RW 306 CS4 Details

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RW 306 CS4 is a high performance hot applied polymer modified, recycled rubber asphalt joint sealant. It is formulated to provide a resilient sealant resistant to cracking in winter and resistant to pick-up in summer temperatures. In its molten state RW 306 CS4 has excellent flow properties ensuring total penetration of the cracks and joints without voids or air pockets.


RW 306 CS4 is particularly suitable for use on both asphalt and concrete pavements in cold and hot climates. RW 306 CS4 is designed for highways, streets and airfields.