Frequently bought together
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Free delivery on orders over £30
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30-day easy returns
Frequently bought together
✅ Features & Benefits:
💧 Seals Damp & Stains – Blocks moisture and prevents peeling, ideal for internal wall damp protection.
🖌️ Easy Application – Applies smoothly with brush or roller for quick, even coverage on interior surfaces.
🪵 Multi-Surface Use – Perfect for wood paint seal, plaster, brick, and more.
🏠 Ideal for Indoor Waterproofing – Designed for waterproofing walls interior and internal waterproofing jobs.
✔️ Trusted Blackfriar Quality – A reliable choice for lasting dampseal, backed by proven wood treatments.
🧱 Product Description
Blackfriar Dampseal (CF-W0M3-6B7N) is a powerful interior wall sealant designed to block damp and seal surfaces before decorating. Ideal for internal waterproofing, it protects walls and ceilings from moisture, stains, and peeling paint. Whether you're tackling waterproofing inside the house or sealing timber surfaces, this 500ml solution delivers professional results.
Use it for internal wall waterproofing, interior wall sealant, or as a clear paint sealer for wood—perfect for prepping damp-prone areas before painting. It's compatible with both brush and roller application and suitable for use on wood, plaster, concrete, and masonry.
Trusted by decorators and DIYers alike, Blackfriar Dampseal is the go-to for wall seal, wood paint seal, and waterproofing walls interior projects.
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Free express delivery on all orders over £30. Choose your speed at checkout.
Express Delivery
1–3 working days
- Orders under £30
- £3.79
- Orders over £30
- FREE
Next Day Delivery
Order by 2pm Mon–Fri
- All orders
- £7.50
Pre 12 Delivery
Next working day, by midday
- All orders
- £16.99
Pre 10.30 Delivery
Next working day, by 10:30am
- All orders
- £19.99
Weekend Delivery
Saturday & Sunday
- Orders under £30
- £13.99
- Orders over £30
- £7.50
Remote Areas Delivery
Highlands, islands & remote postcodes
- Orders under £30
- £5.49
- Orders over £30
- £3.00
Orders before 2pm Mon–Fri dispatch same day. Remote-area surcharges apply to Highlands, islands & selected postcodes. All prices include VAT.
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