When waterproofing structures to keep water out or in, accommodating structural movement is a critical consideration. Where there’s water pressure, joints or cracks need to withstand a potentially high degree of movement across both vertical and horizontal applications. MasterSeal 930 / MasterSeal 933 is a highly elastic pre-formed membrane that addresses this demand.

MasterSeal 930 / MasterSeal 933 is a dynamic system that ensures waterproofing continuity across joints or cracks in:

It can be used on different substrates from concrete, brick and block to metals.

This proven high-performance system is Regulation 31 approved for contact with potable water. It can be used on horizontal and vertical joint/cracks and enables a return to service in just three days at ≥ 14°C, with a 10-day return to service at ≥ 7°C. Suitable for application in damp conditions, it involves low adhesive consumption, and no solvent wipe is needed. Once applied, it’s resistant to UV light, ozone and many chemicals.

The system comprises MasterSeal 930 membrane and MasterSeal 933 two-part epoxy-resin adhesive.