J-Flex is one of Europe’s leading suppliers of high performance silicone sheeting products. These include Vac-Sil® Quality Membranes – preferred for use on lamination equipment for forming or thermo-pressing photovoltaic panels, vinyl foil veneers on woodwork and composites in aerospace, F1 cars, marine and other general products.

Vac-Sil® Endurance is a unique Orange /Black  composite with two variants.

  • Non-reinforced – 3.1mm thick
  • Fabric Reinforced – 3.8mm thick


  • Highest Life Cycle Performance and Temperature Resistance
  • The black gas side – Peroxide / E.V.A. Resistant Barrier
  • Guaranteed for long life
  • High Temperature +170-175°C

Check out our handy comparison guide here

▾ Vac-Sil® Quality Membranes - The Benefits

Vac-Sil® Quality Membranes are only available from J-Flex and offer users many advantages;

  • 1 piece seamless sheet width up to 3850mm wide (no weak joints or marks on lay-up)
  • Highest Life Cycle Performance –  Guaranteed for long life
  • High Temperature Resistance +170 – 175°C
  • Good reusability & durability when exposed to high pressures & elevated temperatures
  • Extraordinary “drawdown” strength & resilience
  • Laboratory controlled manufacturing & quality
  • Even flow of E.V.A encapsulants
  • Uniform pressure throughout solar lay-up

Need more information? In the Downloads section, you’ll find a full Specification Sheet and our Vac-Sil® Quality Membranes Brochure which includes; Installation Guide and Frequently Asked Questions.

Vac-Sil® is a Registered Trademark of J-Flex Rubber Products.

Why buy from J-Flex?

If you are looking for a friendly and helpful industrial rubber products supplier with great product knowledge and excellent customer service, then you’ve come to the right place.

We supply a vast range of quality items including rubber sheet and an array of fabrications made from premium grade elastomers including silicone and Viton™ – many of which are available for next day delivery.