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Bostik Flashband is a flexible, self-adhesive bitumen tape designed for instant, durable waterproof sealing on roofs and gutters. Its easy hand-application and strong adhesion to most building materials make it the go-to solution for quick repairs and long-lasting protection across all weather conditions.














































| ASIN | B0001P03OM |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 511 in DIY & Tools ( See Top 100 in DIY & Tools ) 11 in Sealing Tape |
| Colour | Grey |
| Customer Reviews | 4.3 4.3 out of 5 stars (4,826) |
| Date First Available | 11 Jan. 2007 |
| Included components | 1x Bostik Flashband Self Adhesive Flashing Tape for Roofs |
| Item Package Quantity | 1 |
| Item Weight | 2.13 kg |
| Item model number | 339065-STX |
| Item thickness | Not applicable Millimetres |
| Manufacturer | Bostik |
| Material | Bitumen |
| Measurement System | Metric |
| Part number | 339065-STX |
| Product Dimensions | 15.01 x 14.61 x 15.19 cm; 2.13 kg |
| Size | 150mm x 10m |
| Special Features | Waterproof |
| Style | Single |
B**O
Excellent product
I used this very sticky flashing tape to repair rotting, but very dry wood on the lower half of my summer house doors before - the rain arrived. It worked a treat! I used 2x10m rolls and this completed 8 doors perfectly using 4 x15mil wide strips on each door panel (43W x 47H) Don't forget to allow extra for the overlaps... I used very sharp, long-bladed scissors to cut the required strips and it cuts like butter and is easily shaped. I found a knife 'gummed up' very quickly and did not cut nearly as neatly as the scissors. It's worth having some white spirit to hand to clean your tools. Don't be tempted to pull the backing off before you have the flashing in exactly the right position. Once it's stuck it's a nightmare to unstick! Be advised that it comes off the roll wrinkled and there's nothing you can do to iron them out. You can overpaint easily with water based paint. (two coats.) I would recommend for all sorts of jobs.
M**T
Important - read the review!
I tried to fit this in relatively cold weather, which I really wouldn't recommend. You need to make sure the flashing tape and the surface you are sticking it to are warm for it to be sticky. I did try a blow torch to start off with, but this didn't work as good as a hair drier. I worked along the roof in roughly 50cm sections heating the wall, the roof and the tape for a good 2 to 3 minutes before starting to stick it down. If you do it right, it will stick well. It takes a long time, but it does work and it is worth it. It makes a good seal, I think it helped that I did chase it into the wall - I didn't help that I was sticking this on a stone built house and the face of the stone is extremely uneven and unlevel. I haven't had a leak since I put it on, so only time will tell how long it will last for. It is much cheaper than lead though so I can't complain.
R**Y
Good product but beware of the size
I used this to create a waterproof bond between the house and a lean-to, but after about 4-5 months it has slipped/dropped off the wall and has let water in during heavier rainfall. I used the recommended Bostik primer (black markings seen in photos) which I had hoped would mean this wouldn’t happen. I would recommend going for a size (width) larger than you may think, as I will have to redo this again.
A**R
Easy & Effective
Used this to patch cracked sealant between the flashing and brickwork, that was causing water to leak and stain my lounge ceiling below. I plan to have the whole seal replaced but while it’s continuously raining I needed a quick fix. I found it easy to apply, following the instructions I heated up the surface I was applying it to because it was below the recommended application temperature. I ran heat over it after applying it as well. Rain came later the same day I applied it, and it rained all night. It seems to have held up, I can’t see any new damage. First time I’ve ever had to fix something like this and I found it easy and effective, would definitely recommend.
M**S
Didn’t seem that sticky but 6months later still tight on the brick walls.
I got this to seal the polycarbonate roof against the house. The 6m run was easy to fit and used a small roller to press onto the brick work. Didn’t seem sticky but bonded on the wall well and checked after 6 months and it’s still tight on the wall. Very pleased. Great value for money.
P**L
Great quality and Value for money
Great quality and Value for money - Sued this tape to seal the joints in some plastic guttering which had started to leak at the joints - Stopped the leaks totally and was strong in terms of bonding to the gutters - It's a really thick tar based tape - I actually heated mine during the installing which made to stick even better
J**Y
Not great
Not sure if I received a bad batch, but this was not very sticky at all. Ended uo fixing it using a sealnt to get a secure fix. Disappointing.
D**N
Before you buy
It's not self adhesive, you need to buy a primer to apply to the area or you heat the take up ith a heat gun softening it up and melting it to make it sticky. Must admit after using a heat gun it's bonds extremely well straight into the material. Can use a cloth to push it in whilst it's hot.
P**R
Calfeutrage d'une cheminée
E**O
Buon prodotto, utile per impermeabilizzare una veranda.
A**R
As expected
P**H
Delivered with a smile. Great product and great value.
A**N
Très bien fait le job.
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