Top 9 Valspar Damp Seal UK – Sealers

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1. Ronseal

Ronseal OCDSW250 250 ml One Coat Damp Seal, White

Ronseal - Ronseal rslocdsw250 one coat Damp Seal comes in the following:. You can even put it onto damp walls. It lets trapped moisture escape without causing anymore damage.
Height7.6 cm (2.99 Inches)
Length7.4 cm (2.91 Inches)
Weight0.32 kg (0.7 Pounds)
Width7.6 cm (2.99 Inches)
Part NumberOCDSW250

2. Ronseal

Ronseal One Coat Damp Seal White 750ml

Ronseal - This comes with a white finish. Supplied in a 750ml container. Has a 5m2 per litre coverage. Permanently blocks damp stains on walls and ceilings. This is ready to paint over in just 4 hours.
Part Number37563

3. Polar Specialist Coatings

Wood, Stone & Brick, Stops & Removes Mould & Stains, Quick Drying & Excellent Coverage, 500ml, Ideal For Interior Walls & Ceilings, Matt White, Cement, Plaster, Polar Damp & Stain Block Spray

Polar Specialist Coatings - Immediately block stains – polar damp & stain block spray paint is a high performing coating which provides a quick and easy solution. Polar damp & stain block leaves an attractive matt white finish - which can be left as is. Immediately cover unwanted damp, mould & stains on interior walls and ceilings from reappearing.

Polar damp & stain block can quickly and easily be applied to a wide range of surfaces, including paster, stone, ceilings, and brick to block stains instantly. Quick-drying - can be applied directly to damp surfaces and dries in just 10 minutes, leaving a smooth matt white finish. One coat & easy to apply – our spray formula makes it easier to damp proof and stain block hard to reach places. Apply a minimum 2 coats for optimal results and allow to dry before adding additional coats.

Can be used to block and cover stains caused by smoking, soot, nicotine, crayon, pen, water & much more. Multi-purpose use for interior walls & ceilings - ideal for use on interior walls, cement, window sills and bathroom. Can be used as a damp proofing primer/sealer prior to painting or wallpapering. Spray action gives great coverage and is simple and easy to use. Excellent covering power - excellent covering power and long-lasting protection to stop stains immediately.
BrandPolar Specialist Coatings
ManufacturerPolar Specialist Coatings

4. Polycell

500 ml, Polycell PLCDS500 Damp Seal

Polycell - Prevents damp from showing through and spoiling decoration. For a long lasting paint finish. Seals patches of penetrating damp on interior walls and ceilings in just one coat.
Height9.9 cm (3.9 Inches)
Length9 cm (3.54 Inches)
Weight0.78 kg (1.72 Pounds)
Width10 cm (3.94 Inches)
Part NumberPLCDS500

5. HitlineUK

Concrete, Damp Proof Paint Stain Stop, Stain Blocker Spray Paint White 400ml, Damp Seal, Seals in One Coat for Brick, Cement and Plaster Walls

HitlineUK - Volume: 400ML. Dry with-in 2 3 hours. Stain blocker spray is Suitable for plaster, stone, masonry, plasterboard and wood. Grease, crayons, nicotine, rust and soot. Stain stop spray provides one coat coverage over water stains.
ManufacturerRapide Product
Weight0.22 kg (0.49 Pounds)

6. Thompsons

Thompsons 750Ml Stain Blocking Damp Seal

Thompsons - Thompsons stain blocking Damp Seal is a high performance interior coating which permanently covers. It can be applied directly to damp walls and ceilings,. Damp, water and other common household stains. Which can then be decorated without risk of damp showing through. Thompsons 750ml Stain Blocking Damp Seal.
Part Number570-250

7. Thompson

Thompsons Stain Block Damp Seal 750ML

Thompson - Can be applied directly to damp surfaces and permanently stops the reappearance of stains. The thompsons rsltds750 damp seal is supplied in 750ml tin. Micro-porous formulation allows trapped moisture to escape.
Height11.9 cm (4.69 Inches)
Length9.9 cm (3.9 Inches)
Weight1 kg (2.2 Pounds)
Width9.9 cm (3.9 Inches)
Part Number30323

8. Polycell

Polycell PLCDSAREO Damp Seal Aerosol, 500 ml

Polycell - Matt finish that can be over painted. Prevents damp showing through and spoiling decoration. Works in just one coat. Seals patches of penetrating damp.
Height6.5 cm (2.56 Inches)
Length23.01 cm (9.06 Inches)
Weight0.47 kg (1.04 Pounds)
Width6.5 cm (2.56 Inches)

9. Johnstone's

White, Johnstone's 307955, High Opacity to Safeguard Damp Seeping through Final Decoration, Easy to Use, Safeguard Against Damp Seeping, Damp Proof Paint, 0.75 L

Johnstone's - Formulated to safeguard against damp seeping through the final decoration, brickwork, it can be over-coated with your choice of Johnstone’s emulsion product. Coverage per litre: 3 m². Follow the back of tin instructions on the letter. Dry time: 14-16 hours. Formulated to safeguard against damp seeping through. High opacity paint to cover damp is ideal for use on plaster, cement and stone. Note: do not overspread the product, remove and clean any surface contamination, and ensure the reason for the damp is fixed. Easy to use. Item doesn't have an expiry date.
ManufacturerPPG Architectural Coatings UK & Ireland
Height13.5 cm (5.31 Inches)
Length10.7 cm (4.21 Inches)
Weight1.16 kg (2.56 Pounds)
Width10.7 cm (4.21 Inches)
Part Number307955