GusjoinT-Primer is a polymer-based primer designed to maximize the bond between the substrate and joint sealing systems. It is used for priming concrete, asphalt and rail joints prior to the application of hot-applied bituminous joint sealants, as well as for improving adhesion beneath joint tapes. By enhancing the bond to the substrate, GusjoinT-Primer contributes to the long-term performance and durability of the joint sealing system. The product complies with the requirements of TL Fug-StB and DIN EN 14188-4.​

​

Approval: TL Fug-StB 24, EN 14188-4.