Sika MultiSeal AP (10cm x 3m) grey | Bituminous Sealing Tape

Product Category: Bituminous Sealing Tape Brand: Sika Model Code: Sika® MultiSeal AP

Description

Sika® MultiSeal AP is a self-adhesive rubber-modified bituminous sealing tape, laminated with an aluminium foil layer on the top surface. It is designed for waterproof sealing and repair applications, especially on roofs and exposed building areas.

Applications

• Roof waterproof sealing and repair

• Sealing against water ingress

• Cracks and joint repairs

• Flashing and sealing of building elements

Key Features

• Self-adhesive (no additional adhesive required)

• Easy and fast application

• Good adhesion to multiple substrates

• Weatherproof and durable

• Compatible with bituminous surfaces

• Can be over-painted

• Can be applied at low temperatures

Product Information

• Type: Rubber modified bituminous tape

• Structure: Aluminium foil top layer

• Thickness: ~1.1 mm

Packaging Options

Appearance / Colour

• Matt Grey

• Terracotta

Shelf Life

• 72 months (6 years)

Storage Conditions

• Store in dry, cool conditions

• Temperature: +5°C to +25°C

• Protect from direct sunlight

Technical Data

• Tensile Strength: >130 N / 25 mm

• Elongation at Break: ~100%

• Reaction to Fire: Class B2 (DIN 4102)

• Service Temperature: -20°C to +80°C

Application Conditions

• Ambient Temperature: +5°C to +45°C

• Substrate temperature must be ≥3°C above dew point

Substrate Preparation

General Requirements

• Surface must be:

  • Clean

  • Dry

  • Sound

Non-Porous Substrates

• Metals, plastics, coated surfaces, glazed tiles → Clean and pre-treat with Sika® Aktivator-205 → Waiting time: >15 minutes (max 6 hours)

Porous Substrates

• Concrete, mortar, brick, plaster → Apply bituminous primer (e.g. SikaProof® Membrane) → Waiting time: >1 hour

Application Method

• Cut tape to required length

• Remove release film

• Apply tape firmly to substrate

• Press using roller for strong bonding

• Overlap joints ≥5 cm

Tip

• Heating the tape during application improves adhesion

Cleaning

• Clean tools with Sika® Remover-208

Important Notes / Limitations

• Can be painted with most conventional paint systems

• Do NOT use on natural stone

• Avoid direct contact with sealants or adhesives unless compatibility is tested

Performance Advantages

• Instant waterproof sealing solution

• No curing time required

• Suitable for quick repair works

• Strong adhesion even in challenging conditions

• Long shelf life (6 years)

Safety & Handling

• Follow Safety Data Sheet (SDS)

• Use proper handling procedures

• Store in original sealed packaging

Additional Notes

• Technical values based on laboratory tests

• Actual performance may vary depending on site conditions

• Local regulations may differ

Summary

Sika® MultiSeal AP is a fast, easy-to-use waterproof sealing tape ideal for roof repairs, crack sealing, and water leakage prevention, offering strong adhesion, weather resistance, and immediate protection without curing time.