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Wet-seal Internal Waterproofing System

System Description

Wet-seal™ Enviro-coat IS 520 is a one component, highly durable, fibre reinforced SBR latex hybridised polyurethane, water-based membrane designed for waterproofing all internal wet-areas including showers, bathrooms, laundries, ensuites, powder rooms and toilets.

Wet-seal™ Enviro-coat IS 520 is a BRANZ appraised system and is compliant to AS 3740 and AS 4858.  Wet-seal™ Enviro-coat IS 520 is water based and low in VOC and meets the GBCA’s Green Star IEQ requirements.


  • Australian made
  • Low VOC, water based, & non-toxic
  • Fibre-reinforced for enhanced durability
  • Green star compliant
  • Fast curing
  • Compatible with tile finishes, concrete render, and masonry toppings
  • Excellent adhesion to substrates
  • BRANZ Appraised
  • Compliant to AS 3740:2021 and AS 4858:2004 waterproof membranes for internal applications

Typical Uses

  • Bathrooms
  • Showers
  • Toilets & laundries
  • Kitchens


Technical Data Sheet

Scope of Works

Branz Appraisal

Tiling Information