Bostik Bituminous Mastic for Roofs 2.5L
Bostik Bituminous Mastic for Roofs 2.5L
(Approx. 3-5 working days)
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Bostik Bituminous Mastic for Roofs is a fibre-reinforced, trowel-grade material designed for waterproofing, stopping, bedding, pointing, and sealing applications. It is supplied in a 2.5L tub and dries to a flexible black finish that remains soft and pliable long after application. This adaptability allows it to accommodate natural structural movements without cracking over time.
This mastic is compatible with a broad range of building materials, including mastic asphalt, roofing felt, corrugated iron, cast iron, fibre cement, slates, lead, copper, zinc, concrete, and timber. It provides immediate resistance to rainfall, making it effective for urgent roof repairs and general weatherproofing tasks. The formula is highly resistant to ongoing weathering, providing long-term protection against the elements.
Application is straightforward using a steel trowel or putty knife. It should be applied to a clean, dry surface to ensure optimal adhesion. The coverage rate is approximately 0.33m² per litre, and the product requires a 24-hour drying time under normal conditions.
- Formulated with fibre-reinforced bitumen for structural flexibility.
- Provides immediate resistance to rainfall for urgent roof repairs.
- Each litre covers 0.33m² to maximise material efficiency on the job.
- Adheres to various substrates, including concrete, slate, and timber.
- The finish remains soft and pliable after drying to handle building movement.
| Brand | Bostik |
|---|---|
| Colour | Black |
| Coverage | 0.83 m² |
| Drying Time | 24 Hours |
| Underfloor Heating | No |
- 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 Bituminous Mastic for Roofs is a fibre-reinforced, trowel-grade material designed for waterproofing, stopping, bedding, pointing, and sealing applications. It is supplied in a 2.5L tub and dries to a flexible black finish that remains soft and pliable long after application. This adaptability allows it to accommodate natural structural movements without cracking over time.
This mastic is compatible with a broad range of building materials, including mastic asphalt, roofing felt, corrugated iron, cast iron, fibre cement, slates, lead, copper, zinc, concrete, and timber. It provides immediate resistance to rainfall, making it effective for urgent roof repairs and general weatherproofing tasks. The formula is highly resistant to ongoing weathering, providing long-term protection against the elements.
Application is straightforward using a steel trowel or putty knife. It should be applied to a clean, dry surface to ensure optimal adhesion. The coverage rate is approximately 0.33m² per litre, and the product requires a 24-hour drying time under normal conditions.
- Formulated with fibre-reinforced bitumen for structural flexibility.
- Provides immediate resistance to rainfall for urgent roof repairs.
- Each litre covers 0.33m² to maximise material efficiency on the job.
- Adheres to various substrates, including concrete, slate, and timber.
- The finish remains soft and pliable after drying to handle building movement.
| Brand | Bostik |
|---|---|
| Colour | Black |
| Coverage | 0.83 m² |
| Drying Time | 24 Hours |
| Underfloor Heating | No |
- 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.
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Bostik Bituminous Mastic for Roofs 5LAvailable for deliveryAvailable for click & collect from
Available for click & collect
from Change BranchAvailable for delivery Extended lead times applyAvailable to order for collection from Change Branch Extended lead times applyOut of stock for delivery
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£25.80 Ex VAT£30.96 Inc VAT£25.80 Ex VAT£30.96Inc VAT