Sika® MultiSeal BT – Durable & Weather-Resistant Sealing Tape

At Build Materio, under Buildastra Chemicals Pvt. Ltd., we proudly offer Sika® MultiSeal BT—a top-quality, self-adhesive sealing tape made from high-performance butyl rubber. Reinforced with aluminum film, it delivers reliable waterproofing and sealing across a wide range of construction use cases.

Key Features & Advantages

• Quick and easy installation due to its self-adhesive design.
• Effective even at low temperatures, enabling versatile application.
• Wide service temperature range, ensuring functionality in varying climates.
• Excellent adhesion to diverse construction materials.
• High weathering and UV resistance, providing long-term durability.
• Stable under heat exposure, withstanding structural stress changes.
• Paintable top layer, allowing aesthetic flexibility with most water-based paints.

Ideal Applications

Sika® MultiSeal BT is perfect for sealing, repairing, and protecting:

• Roofing systems including sheet metal components
• Façade elements and roof tiles
• Gutters, chimneys, and roof lights
• Caravans, trailers, and modular office containers
• Ductwork and similar installations requiring reliable joint sealing

Technical Highlights

• Material: Butyl rubber compound reinforced with aluminum film.
• Roll Sizes: Available in 3 m (100 mm / 150 mm widths) and 10 m (100 mm / 150 mm widths per roll).
• Thickness Options: 0.8 mm, 1.0 mm, or 1.5 mm.
• Tensile Strength: ≥ 150 N/50 mm (both longitudinally and transversely).
• Elongation at Break: ≥ 10% longitudinally, ≥ 20% transversely.
• Service Temp Range: From –30 °C up to +90 °C.
• Storage & Shelf Life: 36 months in original sealed packaging, stored at +5 °C to +25 °C.

Application Guidance

• Surface Readiness: Clean, dry, and free of contaminants (e.g., dust, oil, loose coatings). Surface must be structurally sound.
• Adhesion Improvement: For non-porous surfaces, use an activator; for porous substrates, apply primer—allow flash-off time before installation.
• Application Steps:
  Cut tape to length; overlap segments by at least 50 mm.
  Remove liner and press firmly using a hard-wheeled roller for strong adhesion.
  Optional: Warm tape and substrate in low-temp conditions for better application.
• Overhead Use: Avoid using at temperatures above +25 °C to maintain bonding strength.
• Overpainting: Compatible with most water-based paints; test any solvent-based paint before application.
• Tool Cleaning: Clean immediately with petroleum or turpentine; cured residue must be removed mechanically.

Why Build Materio?

As Bangalore’s trusted building materials partner under Buildastra Chemicals Pvt. Ltd., Build Materio delivers:

• Authentic Sika® MultiSeal BT with full technical documentation
• Reliable supply, expert support, and timely service across India
• Quality assurance, product knowledge, and application expertise you can count on