Our products
Our Brands

Bostik Moisture Seal Kit - 2 Part Epoxy Vapour Barrier

Bostik Moisture Seal: Professional 2-Part Epoxy Vapour Barrier

Bostik Moisture Seal is a high-performance, two-part water-based epoxy designed to act as a moisture and vapour barrier. It is specifically formulated to prime substrates before applying flooring adhesives or waterproofing membranes, effectively preventing water seepage and permeation in building substrates.

Recommended Uses & Applications

This moisture seal is ideal for concrete, rendered brick, fibre cement, masonry, and structural plywood (Type A Stamped). Key applications include:

  • Walls and floors in wet areas
  • Water storage tanks and reservoirs
  • Swimming pool priming
  • Concrete bonding primer for consolidating screeds

Key Features & Specifications

  • Easy Mixing: Convenient 1:1 mixing ratio for simple preparation.
  • Safe for Drinking Water: Approved for direct contact with potable water.
  • High Pressure Resistance: Withstands hydrostatic water pressure up to 25m or 259kPa.
  • Standards Compliant: Conforms to ASTM E96 water vapour transmission tests.
  • Compatibility: Perfectly complements Bostik Ultraset flooring and Dampfix waterproofing ranges.

For a professional finish, adhere tiles using compatible Bostik adhesives and finish with Bostik Design Epoxy Grout.

Technical Downloads:

Source: Bostik Australia Official Product Documentation