MasterJoint
MasterJoint
MasterJoint offers high-performance solutions for sealing and protecting movement joints across construction and infrastructure projects. MasterJoint combines advanced materials and technologies to deliver long-lasting protection against water ingress, environmental stress, and structural movement.

What are MasterJoint Jointing Systems?
MasterJoint Jointing Systems are designed to accommodate structural movement while providing superior waterproofing and joint protection. These systems include sealants, waterbars, and other technologies that work together to ensure durability in demanding environments, making them ideal for both new construction and repair projects. MasterJoint offers durability against environmental and mechanical stresses, flexibility for joint movement, and seamless integration for comprehensive protection. With low VOC formulations for sustainability and an easy, efficient installation process, MasterJoint ensures long-lasting performance with minimal downtime.
What Makes MasterJoint a Unique Solution?
MasterJoint stands out with its integrated approach to joint protection, ensuring all components work seamlessly together. It adapts to joint movement, environmental changes, and water exposure while offering long-term reliability and easy application. Key technologies, such as re-injectable hose systems and hydroswelling waterbars, ensure effective protection under challenging conditions.
Key Components of MasterJoint Jointing Systems
Sealants for flexibility and adhesion to various substrates
Waterbars that expand on contact with water to seal joints
Re-injectable Hose Systems for maintaining waterproofing
FPO Tape Sealing Systems for secure waterproofing
MasterJoint provides a trusted, integrated solution for sealing and waterproofing joints in construction, infrastructure, and industrial projects. Backed by Master Builders Solutions, these systems ensure reliable performance and long-term durability.
The MasterJoint product range
MasterJoint 910
Acrylic Hydroswelling Waterbars for Construction Joints
MasterJoint 930
High Performance Root Proof and Chemical Resistant FPO Tape Sealing System for Irregular and Unconventional Joints (formerly MasterSeal 930)
MasterJoint CHR 435
Chemical Resistant Polyurea Hybrid Joint Sealant for Use on Exterior and Interior Joints (formerly MasterSeal CR 435)
MasterJoint PRI 695
Single component, solvent-based polyurethane primer and adhesion promoter