Bostik B738 Block Alu Self‑Adhesive Bitumen Tape
Bostik B738 Block Alu is a self‑adhesive bitumen sealing tape with aluminium lamination and UV‑resistant coating.
| Number of | Price per piece |
|---|---|
|
1x
|
€17.50 |
|
4x
|
€16.50 |
Delivery time 1-2 business days
Application
Suitable for sealing joints, roof windows, gutters, downpipes, roof penetrations and gaps between prefab elements. Highly suitable for façades and roof details due to flexibility and UV resistance :contentReference[oaicite:18]{index=18}.
Instructions
Apply at +5 °C to +45 °C, not under freezing conditions. Remove protective film during application, press firmly with a cloth or roller, and ensure approx. 2.5 cm overlap. Surface must be clean, dry, grease-free; degrease metals and prime porous substrates with GRIP B501 bitumen primer :contentReference[oaicite:19]{index=19}.
- Self‑adhesive with instant bonding
- High malleability for complex substrates
- UV and water resistant
- Long‑lasting elastomeric properties
- Aging and weather resistant
- Minimum 60‑month shelf life in original packaging
Bostik B738 Block Alu Self‑Adhesive Bitumen Tape
This tape is approximately 1.2–1.5 mm thick and made from rubber-modified bitumen with a flexible aluminium top layer. The UV-resistant coating ensures long-lasting performance, and its high malleability and adhesion make it ideal for challenging substrates.
Storage and Stability
Store unopened in a dry, frost-free environment between +5 °C and +25 °C. The tape has a minimum shelf life of 60 months from production date :contentReference[oaicite:16]{index=16}.