Skip to main content

3M 431 Aluminium Foil Tape

Silmid P/N: VAR0000237
From £32.90 (excl VAT) £39.48 (Inc VAT)

3M Aluminum Foil Tape 431 is a 2-mil nominal dead soft aluminum foil with transparent acrylic adhesive. Available in various sizes.

Product Properties


Product Information

3M Aluminum Foil Tape 431 and 439L is a 2-mil nominal dead soft aluminum foil with transparent acrylic adhesive for many permanent sealing, holding, splicing or masking applications requiring the protection offered by a foil backing.


  • Flame resistant. Meets U.L. 723, Class “L” low flammability rating (File R 7311).
  • Meets requirements of F.A.R. 25.853(a).
  • Foil backing provides an excellent reflective surface for both heat and light.
  • Good ageing performance both indoors and outdoors.
  • Low moisture vapour transmission rate offers excellent sealing and patching performance.
  • Best results attained when applied to clean dry surface above 32°F (0°C).

Shipping information

Orders over £100 placed online will now qualify for FREE UK Mainland delivery*

Orders under £100 placed online for UK Mainland delivery is £12.00*

**Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £30.00, orders placed through the office will incur additional charges.** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.

Please refer to our delivery page for more information.