MasterSeal M 820 - Spray applied elastomeric polymer waterproofing membrane

How does MasterSeal M 820 work?

MasterSeal M 820 is a solvent free, two component, highly elastic and very fast curing waterproofing membrane. Due to its fast cure speed it can only be applied by special, two component spray equipment.

MasterSeal M 820 is intended for use in general waterproofing applications such as car park decks, retaining walls and cut and cover tunneling.

Using the appropriate primer, MasterSeal M 820 can be applied to most substrates including concrete, galvanized steel, aluminium, UPVC and glass reinforced polyester.


What makes MasterSeal M 820 a unique solution?

MasterSeal M 820 features a fast reacting spray application making complex details both horizontal and vertical easy to waterproof.


What are the benefits of MasterSeal M 820?

  • Monolithic – no laps, welds or seams.
  • Crack bridging membrane - combination of Tensile strength and elongation of system makes it cope better with structural movement and cracks that occur after installation.
  • High water vapour permeability – low risk of blistering in service.
  • 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 and remains elastic at low temperatures-Tg approx. -45°C – suitable for all Asia Pacific climates.
  • Cost effective solution – very fast curing time saves time of application and labour costs.
  • Long life - durable waterproofing membrane- warrantable for up to 20 years (conditions apply).


Product Information & Safety Data Sheets

MasterSeal M 820 Technical Data Sheet

MasterSeal M 820 Part A Safety Data Sheet Australia

MasterSeal M 820 Part B Safety Data Sheet Australia