The most
powerful features

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1. Fillet/ Bond Breaker gauge.

  • AS3740-2021 table 4.10, lists fillet/ bond breakers requirements 12mm for Class III membranes and 35mm for Class II membranes for Internal/ External wet area membranes
  • AS4654.2-2012 Waterproofing membranes for external above-ground use lists a 15mm X 15mm fillet/ bond breaker requirements for External above ground liquid membranes

Remember to always check the fillet/ bond breaker dimensions with the product manufacturer Technical Data Sheet to ensure the fillet/ bond breaker sizes are compatible with the membrane system and the minimum requirements of the Australian standards.

2. Wet Film Thickness gauge

  • Check the liquid membrane Wet Film Thickness during the installation to ensure the correct Dry Film Thickness is achieved and complies to the product manufacturer’s specification

    0.3mm | 0.4mm | 0.5mm | 0.6mm | 0.7mm | 0.8mm | 0.9mm | 1.0mm | 1.1mm | 1.2mm | 1.4mm | 1.6mm | 1.8mm | 2.0mm | 2.5mm | 3.0mm

Check your WFT coatings from primers to thick coat liquid applications.

3. Crack width gauge

  • Measure cracks in concrete, membranes, various substrates, window seals, facades.

    0.1mm | 0.3mm | 0.5mm | 0.7mm | 1.0mm | 1.5mm | 2.0mm | 2.5mm |

4. Measuring ruler:

  • Our 50mm ruler of is positioned on the edge of the tool to allow measuring of right angles, tight voids, and expansion joint depths. With 1mm gradations this can be used to take a quick measure of cracks or to measure anything else.

5. Tool holder

  • Hang the fillet gauge of your belt lanyard for easy access and use.


  • Waterproofing applicators
  • Builders
  • Site managers
  • Building consultants & inspectors
  • Third party compliance testing
  • Membrane manufacturer representatives

Version 2.0

Measure corner fillets

Measure gaps and voids

Measure tap penetration cut outs

Measure wall - floor junction gap

Measure 12mm corner fillets & bond breakers

Measure architrave checkout for tile installation

Measure shower perimeter waterstop angle height

Measure showerbase upstands


Waterproofing in 2022 & beyond

Waterproofing in 2022 & beyond


Version 1.0

Measure sealant failures

Panel movement

Checking fillet/ bond breaker compliance

Measure shrinkage cracks

Measure substrate cracks

Measure penetration gaps

Measure depth in facade fixings

Gaps in fixing channels

Shrinkage gaps in window seals, holes in gaskets

Measure movement cracks

Measure gaps in facade finishes

Handy tool - roofing

The first & only WFT gauge that tools off fillets/ bond breakers to the sizes listed in AS 3740:2021 & AS 4654.2-2012 - Internal & External Class II & III liquid membranes

  1. Sealant cutter to tool off the fillet/ bond breaker to the correct size listed in the Australian standards & manufacturer’s specifications
  2. Measure the fillet/ bond breaker to achieve compliance to Australian Standards & manufacturer’s specifications
  3. Monitor the liquid coating with the Wet Film Thickness gauge as listed on the product technical data sheet
  • The first WFT Comb that cuts fillets/ bond breakers to the Australian Standards
  • Compliant to AS 3740:2021 & AS 4654.2-2012 - Class II & III Membranes internal & external