Yes, needs to be heated slightly, a hairdryer works and is then very easily worked into place.

Bostik Flashband Self Adhesive Flashing Tape for Roofs Grey - 150mm x 10m - Provides an Instant Watertight Seal - Excellent Adhesion

Bostik Flashband Self Adhesive Flashing Tape for Roofs Grey - 150mm x 10m - Provides an Instant Watertight Seal - Excellent Adhesion

Q: I just bought some, gives very little information on how to make it stick!

You want to place it in the sun for an hour if possible before use. If at room temperature it should stick to many surfaces. If not, heat briefly with a gas gun as you lay it on. Also you can use a wallpaper edging roller once it’s in place to help make it bond.

Q: Will it work to stop lead flash slipping on a slate roof.

Yes, you can use it to replace damaged lead flashing too, adheres to slate, stone, brick, wood etc,,.

Q: Can this be painted over ?

I’ve only used sealant paint on it no problem, it sticks to it and doesn’t peel off. I think gloss paint would be fine.

Product ID: 53127762

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Details

Brand
Bostik
Colour
Grey
Material
Lamination
Number of items
1
Recommended uses for product
Construction &

🧱Bonds to most materials

🌧️All-weather durability

🛠️Instant watertight seal

Frequently Bought Together

Bostik Flashband Self Adhesive Flashing Tape for Roofs, Provides an Instant Watertight Seal, Colour: Grey, 150mm x 10m

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Description

🛡️ Seal the deal with BostikFlashband—roof repairs made foolproof!

VERSATILE BONDING - Adheres seamlessly to brick, metal, tiles, roofing felt, and more for ultimate flexibility.
SEAL IT LIKE A PRO - Creates a permanent, watertight barrier instantly—no leaks, no worries.
MULTI PURPOSE FIXER - Perfect for repairing lead flashing, sealing gutters, mending leaks—your go-to emergency tape.
EFFORTLESS APPLICATION - Applies with just hand pressure and a seam roller—no special tools needed.
WEATHERPROOF CONFIDENCE - Engineered to withstand all climates, ensuring your repairs last through rain or shine.

BostikFlashband is a 150mm x 10m self-adhesive flashing tape designed for instant, permanent watertight seals on roofs. Its flexible bitumen strip bonds to a wide range of building materials without special tools, providing durable, weatherproof protection ideal for repairing flashing, gutters, and leaks.

Specifications

Manufacturer	Bostik
Part number	339065-STX
Item Weight	2.13 kg
Product Dimensions	15.01 x 14.61 x 15.19 cm; 2.13 kg
Item model number	339065-STX
Size	150mm
Colour	Grey
Style	Single
Material	Lamination
Item thickness	Not applicable Millimetres
Item Package Quantity	1
Measurement System	Metric
Special Features	Waterproof
Included components	1x Bostik Flashband Self Adhesive Flashing Tape for Roofs
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

I just bought some, gives very little information on how to make it stick!

Will it work to stop lead flash slipping on a slate roof.

Can this be painted over ?

is it butyl

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