​​​​MasterSeal M 689 - Highly elastic, ultra-fast curing, spray applied poly​urea membrane for waterproofing applications​

What is 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.

Where is MasterSeal M689 used?

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 the water​, the dirty water, chemical, and petrochemical​ industries. MasterSeal M ​689 is also applied on roofs and on areas exposed to mechanical loads.​

Waterproofing solution for surfaces exposed to mechanical and chemical attack

MasterSeal M 689 is the most efficient solution for the quick waterproofing of surfaces exposed to mechanical and chemical attack. It is applied by means of a suitable two component spray machine. This allows for a quick reaction, ensuring a rapid and safe application of the membrane. MasterSeal M 689 sets in few seconds and is fully hardened and operational only after two hours.

Once hardened, MasterSeal M 689 has high elasticity and crack bridging properties which are important to avoid water leakages in case of moving cracks in substrates.

What are the benefits of MasterSeal M 689?

• MasterSeal M 689 is to be spray applied and as it is ultra-fast curing, enabling an 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 in most harsh environments with high durability.​

Download the MasterSeal M 689 Technical Data Sheet​​