Please login with your username and password.


Can’t remember your accounts password?

Can't access your account?

Select your language

This page is available in the following languages:

    Please select your location

    MasterSeal M 811 – Two component polyurea hybrid, pigmented, elastic, highly reactive, spray applied (machine application) waterproofing membrane with short curing time

    How does MasterSeal M 811 work?

    MasterSeal M 811 is a solvent free, two component polyurea hybrid waterproofing membrane. It is high reactive and needs to be applied by special, two component spray equipment (Mixing ratio 100 : 100 by volume).

    What are MasterSeal M 811 typical applications?

    MasterSeal M 811 is used in a wide range of waterproofing applications such as car park decks, podium decks, cut and cover tunneling, roofing and basement waterproofing. It is also used in some secondary containment applications.

    Using the appropriate primer, MasterSeal M 811 can be applied to most substrates including concrete, steel, bitumen cement screed, glass reinforced polyester, timber etc. 

    What are MasterSeal M 811 main benefits?

    • fast reacting
    • high build capability
    • application to vertical surface without runs
    • easy application to complicated details 
    • fast installation
    • monolithic – no laps, welds or seams
    • fully bonded
    • high water vapor permeability – low risk of blistering
    • excellent mechanical properties
    • excellent crack bridging
    • resistant to puncture
    • resistant to standing water
    • thermoset – does not soften at elevated temperatures
    • remains elastic at low temperatures; Tg approx. -45°C
    • solvent free
    • r​esistance to root penetration
    MasterSeal M 811 features high elasticity, excellent tensile strength and elongation and a good wear resistance. This highly reactive waterproofing membrane allows its installation on vertical surfaces without problem. Moreover, this fast-curing membrane can be re-coated within a few hours.

    MasterSeal 501

    Surface applied capillary waterproofing system for concrete and block work

    MasterSeal 501/502

    Components of Master Builders Solutions crystalline capillary waterproofing system

    MasterSeal 590

    Fast setting mortar to plug active water leaks in concrete and masonry

    MasterSeal 700BG

    Synthetic membrane of plasticised PVC

    MasterSeal 901

    Vinyl Ester Methacrylate resin for crack injection via injection hoses and packers

    MasterSeal 909

    Re-injectable hose waterstop system for construction and cold joints in concrete