MasterSeal M 803

Fire retardant, spray applied polyurethane membrane for roof waterproofing system, certified according ETAG 005 part 6

What is and where to use MasterSeal M803?

MasterSeal M803 is a solvent free, two-component polyurethane waterproofing membrane. Masterseal M803 is mainly used in roof waterproofing applications, especially where a fire retardant coating is required. It can be applied both on flat and on steep roofs. MasterSeal M803 can also be used in other waterproofing applications such as bridge decks, car park decks, podium decks, cut and cover tunneling and basements. Using the appropriate MasterSeal P primer, MasterSeal M803 can be applied, fully bonded, onto most substrates including concrete, steel, cement screed, glass, reinforced polyester, timber etc.


MasterSeal M803 is part of the MasterSeal 2103 system, certified according ETAG 005 part 6 for roof waterproofing

MasterSeal M803 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 M803 sets in few seconds and is fully hardened and operational only after 2 days. Once hardened, MasterSeal M803 has high elasticity and crack bridging properties, necessary to avoid water leakages in case of moving cracks in substrates MasterSeal M803 is resistant to puncture and to standing water.


How you will enjoy the benefits of MasterSeal M800?

MasterSeal M803 is to be spray applied and as it is fast curing enables easy application to form a monolithic waterproofing membrane on simple and complex surfaces with vertical elements or complicated details. MasterSeal M803 is a continuous membrane with no laps, welds or seams.  MasterSeal M803 is a safe solution: Fully bonded MasterSeal membrane systems prevent the water circulation between the layers even if there is a leakage, helping its detection, localization and repair.
Fully certified solution according ETAG 005 Part 6 that ensures consistency in performance.


MasterSeal M803: Technical Data Sheet

pdf (93.20 Kb)