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Parchem Construction Supplies
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Proofex Torchseal A900

Proofex Torchseal A900

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Torch applied 5mm thick, reinforced elastoplastomeric polymer, bitumen bridge deck waterproofing membrane

Replaces Index Testdo 30



Proofex Torchseal A900 is manufactured by co-extrusion of an elastoplastomeric bitumen-polymer compound with a softening point of ≥150°C and of a non-woven polyester reinforcement of continuous filament weighing ≥250g/m² placed in the thickness of the membrane. This ensures a very strong membrane with notable ultimate elongation and an optimal resistance to puncture and piercing.
The top face of Proofex Torchseal A900 is finished with a textured polypropylene film which prevents sticking when the membrane is in storage.
The lower face of the membrane is manufactured with a sacrificial polyethylene film which prevents sticking when the membrane is in storage.


Proofex Torchseal A900 membrane is characterised by a high resistance to puncture and is therefore particularly suitable for single layer waterproofing systems where high mechanical resistance is required, such as:

  • Bridge decks and viaducts
  • Road ways
  • Car parks
  • Foundations
  • Earthquake-proof foundations
  • Subways and tunnels


  • APP polymer modified -specifically selected for Australian and NZ conditions
  • Handles ponding and permanently wet conditions
  • No curing times. Instantly waterproof
  • Uniform thickness – eliminating likelihood of uneven application possible with liquid applied membranes
  • Excellent stability at both high and low temperatures
  • Excellent durability and flexibility

Product Fact Sheet

Proofex Torchseal Fact Sheet

Technical Data Sheet

Safety Data Sheets


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