Bostik Flashband Original Self-Adhesive Flashing Tape 300mm x 10m
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Bostik Flashband Original Self-Adhesive Flashing Tape 300mm x 10m
(Approx. 3-5 working days)


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Bostik Flashband Original is a self-adhesive, bitumen-backed sealing strip designed to provide an instant, watertight seal across a range of building materials. It features four protective layers, incorporating a membrane, foil, lacquer, and a bitumen adhesive to prevent water ingress. The flexible nature of the tape allows it to mould to different contours, providing a secure bond on both flat and uneven surfaces.
This wider 300mm flashing tape provides broad coverage and is commonly used for repairing lead flashing, sealing valley gutters, mending leaks in drain pipes, and fixing roofing felt joints on flat roofs. It adheres effectively to brick, masonry, slates, concrete roof tiles, wood, metal, terracotta, glass, and rigid plastics. For porous surfaces, a suitable primer must be applied prior to application to achieve a permanent bond. If you are completing a larger roofing project, explore our full range of
Application requires only hand pressure and a seam roller, eliminating the need for specialist cutting or forming equipment. It maintains its adhesion and structural integrity in temperatures ranging from -10°C to 100°C, remaining functional across varying weather conditions.
- Features a membrane, foil, lacquer and bitumen adhesive for a watertight seal.
- Withstands temperatures from -10°C to 100°C for use in varying weather.
- Bonds to standard building materials including brick, metal and glass.
- Applies using hand pressure and a seam roller, requiring no special tools.
- Moulds to structural contours to ensure complete coverage on uneven surfaces.
| Brand | Bostik |
|---|---|
| Width | 300 mm |
| Colour | Grey |
| Length | 10 m |
| Sold Per | Roll |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
Bostik Flashband Original is a self-adhesive, bitumen-backed sealing strip designed to provide an instant, watertight seal across a range of building materials. It features four protective layers, incorporating a membrane, foil, lacquer, and a bitumen adhesive to prevent water ingress. The flexible nature of the tape allows it to mould to different contours, providing a secure bond on both flat and uneven surfaces.
This wider 300mm flashing tape provides broad coverage and is commonly used for repairing lead flashing, sealing valley gutters, mending leaks in drain pipes, and fixing roofing felt joints on flat roofs. It adheres effectively to brick, masonry, slates, concrete roof tiles, wood, metal, terracotta, glass, and rigid plastics. For porous surfaces, a suitable primer must be applied prior to application to achieve a permanent bond. If you are completing a larger roofing project, explore our full range of
Application requires only hand pressure and a seam roller, eliminating the need for specialist cutting or forming equipment. It maintains its adhesion and structural integrity in temperatures ranging from -10°C to 100°C, remaining functional across varying weather conditions.
- Features a membrane, foil, lacquer and bitumen adhesive for a watertight seal.
- Withstands temperatures from -10°C to 100°C for use in varying weather.
- Bonds to standard building materials including brick, metal and glass.
- Applies using hand pressure and a seam roller, requiring no special tools.
- Moulds to structural contours to ensure complete coverage on uneven surfaces.
| Brand | Bostik |
|---|---|
| Width | 300 mm |
| Colour | Grey |
| Length | 10 m |
| Sold Per | Roll |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.





