Sika® MultiSeal BT

Butyl rubber compound

36 months from the date of production

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +25 °C. Always refer to packaging.

~0,8 mm / 1,0 mm / 1,5 mm (including aluminium film)

The aluminium film provides the UV resistance

-30 °C min. / +90 °C max.

+5 °C min. / +40 °C max.

+5 °C min. / +40 °C max.

The substrate must be stable, clean, dry and free of all contaminants such as dirt, oil, grease, cement laitance, old sealants and poorly bonded paint coatings which could affect adhesion of the adhesive / sealant. The substrate must be of sufficient strength to manage with the stresses induced by the tape during movement. Removal techniques such as wire brushing, grinding, sanding or other suitable mechanical tools can be used. All dust, loose and friable material must be completely removed from all surfaces before application of any activators, primers or tapes.

Sika® MultiSeal BT generally has good adhesion without primers/activators to most dry, clean and sound substrates. For optimal results the following procedure must be followed:

Non porous substrates

Metals, plastics, coated surfaces, glazed tiles and similar substrates must be cleaned and pre-treated with Sika®Aktivator-205 by using a clean towel. Before sealing allow a flash-off time > 15 min (max. 6 hours).

Porous substrates
Concrete, aerated concrete and cementitious plasters, mortars, brick, etc. can be pre-heated to increase the adhesion.

Clean all tools and application equipment immediately after use with petroleum or turpentine. Once cured, hardened material can only be removed mechanically.