Sika® MultiSeal BT

Butyl rubber compound

36 months from date of production

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

Refer to the current Safety Data Sheet for information on safe handling and storage.

The film provides the UV resistance

IMPORTANT

Discolouration of natural stone substrates, coatings and plastics

Due to the chemical content of the tape, coatings, plastics and natural stones may discolour.

1. Do not use on natural stone substrates.
2. Test plastic or coated substrates for compatibility prior to use.

The substrate must be sound, clean, dry and free of all contaminants such as dirt, oil, grease, cement laitance, old sealants and poorly bonded coatings which could affect adhesion of the tape.

The substrate must be of sufficient strength to cope with the stresses induced by the tape during movement.

1. Use techniques such as wire brushing, grinding, grit blasting or other suitable mechanical tools to remove all weak substrate material.
2. Completely remove all dust, loose and friable material from all surfaces before application of the sealant.

The Product generally has good adhesion without primers or activators to most dry, clean and sound substrates. Primer-600 can be used to improve adhesion. For optimal results, the following procedure must be carried out.

NON-POROUS SUBSTRATES

1. Clean and pre-treat the substrate with Sika® Aktivator-205 applied with a clean towel.
2. Allow a flash-off time > 15 min (max. 6 hours) before applying the tape.

POROUS SUBSTRATES

1. Pre-heat concrete, aerated concrete and cementitious plasters, mortars and brick substrates to increase the adhesion.

IMPORTANT

Reduced adhesion due to damp substrates

On porous substrates, water infiltration underneath the tape is possible which may affect adhesion.

1. Thoroughly dry out substrates before applying the Product.

IMPORTANT

Reduced adhesion due to overhead application at temperature > +25 °C

When the tape is applied overhead in warm temperatures, the tape's adhesion may be reduced.

1. Do not use for overhead applications when the service temperature is > +25 °C.

IMPORTANT

Reduced adhesion due to water immersion or pressure

1. Do not use for applications permanently immersed in water or under water pressure.

IMPORTANT

Reduced adhesion, surface discolouration, or surface tackiness due to plasticiser migration

Plasticiser migration from the Product may result in reduced adhesion, surface discolouration, or surface tackiness.

1. Test the compatibility of the Product with the substrate before undertaking the project.

1. Cut the tape to the required length.

 Note: Overlaps between cuts must be ≥ 50 mm.

2. Remove the release film and press the tape firmly onto the substrate with a hard-wheeled roller or suitable tool.

Application at low temperatures

Note: Low temperatures can reduce adhesion during application.

1. Warm the tape by handling it for a few minutes prior to application
2. Warm the substrate prior to application using a warm air blower.

OVERPAINTING THE TAPE

The top film side of the Product can be overpainted with most conventional water-based paint coating systems.

1. IMPORTANT Do not use solvent-based paints. Test the paint system with the Product before undertaking the project.

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

For cleaning skin use Sika® Cleaning Wipes-100 and wash with water and soap.