Professional Waterproofing Protection for Tiled and Covered Areas

Tremco Vulkem 125 is a high-performance, moisture-curing polyurethane waterproof membrane developed for demanding residential and commercial waterproofing applications. Formulated as a ready-to-use single-pack system, Vulkem 125 provides superior waterproofing protection while simplifying installation and reducing application time.

Once cured, Vulkem 125 forms a seamless, highly flexible Class III waterproof membrane capable of accommodating structural movement and substrate expansion without compromising waterproof integrity.

Its low-odour formulation makes it ideal for enclosed spaces such as bathrooms, showers, and internal wet areas while delivering outstanding adhesion to properly prepared concrete, masonry, timber, and other approved building substrates.

Designed specifically for areas that will be tiled or otherwise protected from UV exposure and traffic, Vulkem 125 provides reliable long-term waterproofing performance that complies with Australian building standards.

Why Choose Tremco Vulkem 125?

• 
  AS 4654.1 and AS 4858 tested
  
• 
  NCC compliant waterproofing membrane
  
• 
  Class III high-flexibility membrane
  
• 
  Single-component ready-to-use formulation
  
• 
  Low odour application
  
• 
  Exceptional crack-bridging performance
  
• 
  Seamless monolithic waterproof barrier
  
• 
  High elongation exceeding 300%
  
• 
  Excellent adhesion to prepared substrates
  
• 
  Suitable for internal and external tiled applications
  

Performance Highlights

Vulkem 125 delivers:

• 
  Elongation greater than 300%
  
• 
  Tensile strength exceeding 2.2 MPa
  
• 
  Strong adhesion to concrete and plywood
  
• 
  Excellent movement accommodation
  
• 
  Low water vapour transmission
  
• 
  Durable long-term waterproof protection
  
• 
  Class III waterproofing compliance
  
• 
  Seamless liquid-applied membrane technology
  

Typical Applications

Perfect for waterproofing:

• 
  Bathrooms
  
• 
  Showers
  
• 
  Balconies
  
• 
  Terraces
  
• 
  Podium decks
  
• 
  Internal wet areas
  
• 
  Laundry rooms
  
• 
  Residential developments
  
• 
  Commercial wet areas
  
• 
  Tiled waterproofing systems
  

Coverage

ProductCoverage Per LitreCoverage Per 15L PailWet Film ThicknessDry Film ThicknessVulkem 1250.74m²/L11.10m²1.36mm1.17mm

Packaging

• 
  15 Litre Pail
  

Colour

• 
  Light Grey
  

Compliance

• 
  AS 4654.1 Waterproofing Membranes
  
• 
  AS 4858 Waterproofing Systems
  
• 
  National Construction Code (NCC) Compliant
  
• 
  Australian Waterproofing Standards Compliant

Not UV Stable, Not Trafficable Surface, No Below Grade, Requires Dry Surface, Not Exposed Waterproofing, Protected Applications Only, No Damp Substrates, Requires Tile Protection, Proper Priming Required, Professional Installation Recommended