Surface Pastes are used in both epoxy and polyurethane concrete crack repair. The purpose of a surface paste is to attach surface ports to the concrete and to seal over the exposed surface of the concrete crack. Once the surface paste has cured, the concrete crack can then be injected with the desired repair material.
Mercaptan based fast setting surface sealer and port adhesive.
Fastest setting polyurea based surface sealer and port adhesive.
After completeing the repair, simply peel off the surface sealer and ports for a clean look.