Roof repair tape that promises a fast, watertight seal for flashing, gutters and roof leaks. Peace of mind for homeowners and tradespeople needing a quick, reliable fix. Is Bostik Flashband Self Adhesive Flashing Tape the most practical way to stop a leak before a full repair?
⚡ At a Glance
- • Adhesion: Bonds instantly to most building materials and forms a permanent watertight seal across varied climates.
- • Best for: Repairing lead flashing, sealing valley gutters and quick patching of roof leaks by DIYers and tradespeople.
- • Not ideal for: Surfaces contaminated with oil, loose debris or heavy corrosion where surface preparation is required.
Flexible bitumen strip accepts hand pressure and can be rolled down to form a continuous membrane. Supplied with primer to improve adhesion on different roofing substrates.
Instant watertight seals, with flexible bitumen strip
Flexible bitumen has a tacky adhesive layer that conforms to uneven surfaces and bonds on contact, creating a continuous waterproof membrane once rolled. Primer improves chemical bonding on marginal substrates before application.
Stops leaks quickly even in heavy rain, making it suitable for emergency repairs on roofs and gutters.
Fast DIY application, with self-adhesive backing and included primer
Self-adhesive backing compresses into place using hand pressure and a seam roller for full contact; no specialised tools are required. Primer prepares porous or dusty surfaces to ensure better adhesion.
Homeowners and small teams can complete reliable repairs without hiring specialist equipment or contractors.
Wide material compatibility, with proven adhesion to common roofing substrates
Adhesive formulation bonds to brick, masonry, slates, metal, terracotta tiles and roofing felt, making the tape adaptable for many repair scenarios. Suitable uses include flashing repairs, valley gutters and mending drain pipes.
Useful across a range of jobs, reducing the need for multiple repair materials and simplifying maintenance.
✨ The 4 Key Reasons for Bostik Flashband Self Adhesive Flashing Tape
- Flexible bitumen strip, conforms around irregular joins for a neat, continuous seal
- Included primer, reduces preparation time and improves bond on porous surfaces
- Hand-applied installation, allows emergency fixes without specialised equipment
- 150mm x 3.75m roll, covers extended lengths to minimise joints and overlaps
📋 Technical Details at a Glance
- Category: Home Improvement
- Brand: Bostik
- Material: Flexible bitumen
- Colour: Grey
- Dimensions: 150mm x 3.75m
❓ Frequently Asked Questions
Q: Can the tape be applied without special tools?
A: Yes, application requires only hand pressure and a seam roller; no special equipment is needed.
Q: Which surfaces will it bond to?
A: It bonds to brick, masonry, slates, metal, terracotta tiles and roofing felt, according to the product description.
Q: Is primer included with the roll?
A: Yes, the roll is supplied complete with primer to aid adhesion.
🏆 Our Verdict
Suitable for homeowners and roofing tradespeople who need a quick, reliable waterproof repair. Flexible bitumen construction combined with a self-adhesive backing and included primer enables long-lasting seals across many materials. Durable performance helps avoid repeated patching and keeps small problems contained until a full repair can be arranged.
