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Butyl Tape BB

ME480 is a membrane on a roll with fire classification B-s1, d0 to EN13501-1, composed of a laminate film with a layer of modified butyl rubber adhesive, aluminium foil finish and a siliconised release liner.


ME480 has been specifically designed for construction applications where high fire retardent performance is required (e.g. tall buildings - Relevant Buildings >18 m high).

Provides permanent watertightness, air tightness, compartmentalization and for repairs of vapour-impermeable joints and seals in construction applications.

Bonds with most normal building materials such as glass, steel, concrete, stone, wood and aluminium.

  • Reaction to fire - EN13501-1: Class B-s1, d0 (Complies with ADB requirements)
  • Both the aluminium foil and the butyl adhesive layer are UV-resistant
  • Adhesive layer remains flexible at high and extremely low temperatures
  • Non-staining
  • Adhesive layer does not dry out
  • Bonds to virtually all common substrates
  • Very high vapour resistance, including water and airtightness

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