CJR400 is a two-part polyurethane system designed for crack and joint repair on concrete substrates. Its extremely low viscosity allows for deep penetration, ensuring long-lasting reinforcement where it matters most. Ideal for both cracks and control joints, CJR400 sets fast and is ready for use within just 10 to 15 minutes. PrepWorx CJR400 – precision repair, rapid results, and reliable protection.
