Proofex Torchseal A350
Self-adhesive 3 mm thick base sheet for heat sensitive substrates in multilayered torch on membrane systems
Replaces Index Autotene Asfaltico EP
Proofex Torchseal A350 is designed to solve the problem of direct laying over polystyrene foam or timber, without using any nails or glue. The top face of the membrane is finished with a textured polypropylene film which prevents sticking when the membrane is in storage. The lower face is coated with a special adhesive. The membrane is laid onto the insulation panel or timber after removing the silicone film that protects the adhesive coated face.The next layer of regular torch applied membrane is then applied to the Torchseal A350 base sheet. Direct heating generated by flame-laying of the next layer further improves long-lasting safe adhesion.
Proofex Torchseal A350 will also bond to surfaces such as plastics, PVC, metals and old failed liquid applied membranes.
Proofex Torchseal A350 incorporates a composite non-woven polyester fabric reinforcement.
Used as a base layer in multi-layer torch applied waterproofng systems being applied to heat sensitive substrates such as:
- Thermal insulation
- Rigid PVC and old failed liquid applied membranes
- Fast to lay / install
- Handles ponding and permanently wet conditions
- No curing times. Instantly waterproof
- Self adhesive membrane, no need to flame adhere base sheet to substrate; base sheet is further adhered to substrate by the heat generated by flame-laying of following layer
- Uniform thickness – eliminating likelihood of uneven application possible with liquid applied membranes
- Excellent stability at both high and low temperatures
- Polyester fabric composite reinforcement ensures dimensional stability and high strength while maintaining flexibility during application and service
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