MasterSeal M 800 - Spray applied polyurea/polyurethane waterproofing membrane

How does MasterSeal M 800 work?

MasterSeal M 800 is a solvent free, two component waterproofing membrane. Due to its fast cure speed it can only be applied by special, two component spray equipment.

MasterSeal M 800 is intended for use in general waterproofing applications such as car park decks, podium decks and cut and cover tunneling.

Using the appropriate primer, MasterSeal M 800 can be applied to most substrates including concrete, galvanized steel, aluminum, UPVC, glass reinforced polyester etc.

What makes MasterSeal M 800 a unique solution?

Low tensile strength, fast cure spray membrane with exceptional crack bridging abilities.

How can you benefit from MasterSeal M 800?

  • Fast reacting spray application – Complex details both horizontal and vertical easy to waterproof
  • Application to vertical surface without runs – Installation to walls not problem
  • Monolithic – No laps, welds or seams
  • Fully bonded – Moves with the structure
  • High water vapor permeability – Low risk of blistering in service
  • Crack bridging capability- Can cope with cracks that occur after installation
  • Solvent and monomeric isocyanate free-Increased safety for applicators
  • Unaffected by standing water or ground water – Suitable for constant water contact
  • Thermoset – Does not soften at elevated temperatures encountered on a roof
  • Remains elastic at low temperatures-Tg approx. -45°C – Suitable for all Asia Pacific climates

MasterSeal 501/502

Components of BASF’s crystalline capillary waterproofing system

MasterSeal 505

Blend of hydraulic cements, well-graded sands and additives supplied in dry powder form

MasterSeal 550

Acrylic-modified, Portland cement-based flexible, waterproofing membrane for concrete and masonry

MasterSeal 910

Suitable for all construction joints subject to hydrostatic pressure, on one or both sides

MasterSeal 912

One component, moisture curing pre-polymer which is reswellable when in contact with water

MasterSeal HLM 5000

One-component, moisture-curing, bitumen-modified polyurethane elastomeric waterproofing membrane for exterior below-grade or between-slab applications


MasterSeal 122 BK neutral SDS

pdf (83.79 Kb)

MasterSeal 123NS White SDS

pdf (78.45 Kb)

MasterSeal 473 RC Off White SDS

pdf (96.56 Kb)

MasterSeal 501/502: Technical Data Sheet (ref. MasterSeal 501/502/01/0313)

pdf (232.27 Kb)

MasterSeal 505 SDS

pdf (111.14 Kb)