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Bosch Bostik Flashband 100mm x 10m

4.5 (280 reviews)
SKU: 240609120744010 EAN: 5036684002660

Compare 1 price for Bosch Bostik Flashband 100mm x 10m — from £14.59 across 1 UK seller including Toolstation.

£14.59 18h ago
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Whether it’s for a new build or an emergency repair, using Bostik Flashband makes the job quick and easy. This self-adhesive bitumen strip bonds instantly to a wide variety of building materials, providing a permanent watertight seal.\nFlashband is a great choice for repairs to lead flashing, sealing valley gutters or repairing roofing felt joints on flat roofs. It features four layers of protection to make it tear and impact-resistant, and able to withstand high temperatures.\nRemember to use Bostik Flashband Primer before application, particularly when you’re working with dusty or porous surfaces.\n• Bonds instantly to a wide range of building materials\n• Provides a permanent and watertight seal\n• Quick and easy application\n• Perfect for new-build or emergency repairs\n• Four layers of protection for tear and impact resistance\n• Can withstand temperatures of up to 100°C\n• Use Flashband primer before application – (code 52679)
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Customer Reviews 280

4.5
280 reviews
5 star
210
4 star
35
3 star
16
2 star
4
1 star
15
Not very sticky
4.0
January 31, 2026
Dino Verified Purchase

Not very sticky, used heat gun and seam roller to get it to adhere to brick and concrete.

Recommended
5.0
January 4, 2026
Andy Henry Verified Purchase

Worked as expected - needed a bit of warming up with a heat gun in cold weather - adhered well and lay flat with little effort.

Sound felt repair
5.0
November 27, 2025
pilate Verified Purchase

Used to repair roof felt on the loft side and appears to have done the job well

Great product
5.0
November 23, 2025
ic4z0daus3yt1zontr15qf8qt Verified Purchase

Easy to use very strong. Great value for price on the length

Easy to use Flashband
5.0
November 19, 2025
LJonesplastering Verified Purchase

Flashband was good and easy and quick to use make good stuff me old flashing around a flat roof

Guttering Leak
5.0
November 5, 2025
Djburty Verified Purchase

Used to cover a leaky joint on guttering. Did not completely seal had to follow up with spray stop leak.

Finally dry!
5.0
November 3, 2025
Gizm0 Verified Purchase

Tried silicone first, but wished I had started with this. Easy to apply, very wide and very sticky, used a seam roller and it's now finally leak proof. Would start with this next time

Success
5.0
October 16, 2025
d4d15151-102a-50b0-91f7-f50f5bfe2530 Verified Purchase

I used it to repair several leaks from a window pane on a garage roof. Easy to apply and for the first time in two years no leaks. Nothing else worked, tried various sealants and putty. The real test will be when it rains heavily, as so far have only tested with a watering can!

Didn't work for me.
3.0
October 13, 2025
Gerald49 Verified Purchase

After scrubbing the dust and washing down the roofing felt to remove all the dust ready to patch holes it seemed to work well. Next morning they'd all fallen off. After reading the reviews I decided to try heating the adhesive as some had suggested, that seemed to do the trick. Next day all had fallen off again. Third attempt used heat and aluminium tape around the edges. The tape is holding up the sagging patches. I gave it 3 because it sticks to itself and makes a patch.

Flashing good stuff
5.0
October 4, 2025
Rick Poulter Verified Purchase

Easy to use. Very sticky on roof and gutters. Covered awkward edges a treat.

Bostik Flashband
5.0
August 29, 2025
Brian 36 Verified Purchase

Used together with Bitumen Adhesive on an area of cracked & broken corrugated roofing, on a hot sunny day, made a satisfactory repair that otherwise would have been quite expensive.

Roof repair
5.0
August 24, 2025
CDC building services Verified Purchase

Great stuff just what I needed to do the job properly

Perfect and easy to use.
5.0
August 14, 2025
SB4500 Verified Purchase

Does the job, keeps wind off van mounted solar panels and still there 3 years later.

Excellent for patches
5.0
June 21, 2025
Guts Verified Purchase

Excellent. Highly recommended for patching. Trade and DIY friendly

Flashband
5.0
June 16, 2025
Speechley Builders Verified Purchase

great product easy to use loved it will Definity be the flashbond of my choice

Not sticking
1.0
June 5, 2025
RJeffrey Verified Purchase

Not sure if this product is out of date but there is no adhesion what so ever. Just watched a video on flashbanding tape and it refers to this being really sticky. This one isn't even after pressing down on tape.

Bostik Flashband
4.0
May 24, 2025
1248e7dd-1416-50fa-b676-f4952751c607 Verified Purchase

I applied the flashband on the joint of the roof slates, but it didn’t stick very well, so I applied a bit of heat to the sticky side, and it worked out fine.

Quick simple and easy to use ready for me entering building
5.0
May 16, 2025
Rocenante Verified Purchase

Quick simple and easy order ahead, pick up at collection till

Shed roof
5.0
May 11, 2025
Bernie the red Verified Purchase

Very good. Repairing a join between a shed and house wall.

Bostik Flashband
5.0
May 10, 2025
Ray5000 Verified Purchase

Used to repair a shed roof. Excellent adhesive tape, ideal for waterproofing repairs

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