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    ​​​​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​​



    MasterSeal M 689 Technical Data Sheet

    pdf (827.61 Kb)


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