​MasterSeal M 689

High elastic, solvent free, ultra-fast curing, spray applied polyurea membrane for use in waterproofing applications

What is and where to use MasterSeal M 689?

MasterSeal M 689 is a solvent free, two component, 100% polyurea waterproofing membrane. MasterSeal M 689 is highly reactive and can only be applied by two component spray equipment. MasterSeal M 689 is used in a variety of waterproofing applications where a high degree of chemical resistance is required. This includes sewage effluent and secondary containment bunds within water the dirty water, chemical and petrochemical industries. MasterSeal M689 is also applied on roofs and on areas exposed to mechanical loads.

MasterSeal M 689 is the most efficient solution for quick waterproofing of surfaces exposed both to mechanical and chemical aggressiveness

MasterSeal M 689 is applied by means of a suitable two component spray machine. This allows the quick reaction to proceed and ensures a rapid and safe application of the membrane. MasterSeal M 689 sets in few seconds and is fully hardened and operational only after 2 hours.
Once hardened, MasterSeal M 689 has high elasticity and crack bridging properties, necessary to avoid water leakages in case of moving cracks in substrates.

How you will ​enjoy the benefits of MasterSeal M 689?

MasterSeal M 689 is to be spray applied and as it is ultra-fast curing enables easy application to form a monolithic waterproofing membrane on simple and complex surfaces with vertical elements or complicated details.
MasterSeal M 689 can be applied to a wide range of substrates with the appropriate primer.
MasterSeal M 689 is a continuous membrane with no laps, welds or seams.
The membrane shows high chemical and mechanical resistance. MasterSeal M 689 can be applied on most harsh environments with high durability.