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MasterSeal M 811 (430 KG) Waterproof Polyurea Coating

Save £1,728.60 inc.VAT

Sale price£3,431.40 inc.VAT Regular price£5,160.00 inc.VAT



MasterSeal M 811 (spray applied)

Two-component polyurea hybrid, pigmented, elastic, highly reactive, spray applied (machine application) liquid coating waterproof membrane with short curing time.

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).


MasterSeal M 811 is used in a wide range of waterproofing applications such as car park decks, podium decks, cut and cover tunnelling, 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.

MasterSeal M 689 spray application and ultra-fast curing time make for easy application. It forms a monolithic waterproofing membrane with no laps, welds or seams on simple or complex surfaces with vertical elements or complicated details. MasterSeal M 689 can be applied to a wide range of substrates with the appropriate primer, providing high chemical and mechanical resistance and durability in the harshest

MasterSeal M 689 is highly reactive and can only be applied by two-component spray equipment, which initiates a quick reaction and ensures the membrane’s rapid, safe application.
  • 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; Eg approx. -45°C
  • Solvent free
  • Resistance to root penetration
MasterSeal M 811 (430 KG) Waterproof Polyurea Coating


 Click here for relevant MasterSeal polyurea primers.

MasterSeal M 811 (430 KG) Waterproof Polyurea Coating

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