Ronseal Damp Seal 400ml

Product rating
4.3 out of 5 stars
Product code:



£20 per L

Ronseal Damp Seal 400ml

Product code:
Ronseal Damp Seal 400ml



£20 per L

Please select delivery method
  • Home Delivery

    Out of stock for Home Delivery. Please check back soon.

  • Click & Collect - Select store

Product Details

Product notices

  • COSHH Health & safety data sheets for B&Q products
    Find out more about COSHH

  • Caution not suitable for under 21

  • Caution contains aerosol content

[This is a block of tabs..]

Product Details

Product Information

This 400ml damp seal from Ronseal is ideal for covering damp, water & other household stains, and is a must have purchase for any redecorating project around the interior of your home. It dries in 10 minutes and comes in an easily storable tin can. As it's paintable, it's ideal for colour matching to your existing decor.

Features and Benefits

This aerosol damp seal permanently blocks damp stains, preventing damage to your top coat. It dries in just 10 minutes for a quicker job and because there are no brushes to clean up when you're finished, sealing your walls couldn't be easier.

  • Can be applied directly to damp walls and ceilings
  • Quick drying
  • 2-3 coats required, recoat in 10 minutes
  • Can be painted or wallpapered over
  • Handy aerosol application, no brushes to clean
  • Smooth white finish

Technical Specifications

Technical specification of Ronseal Damp Seal 400ml
Brand Ronseal
Colour description White
Waterproof Waterproof
Container Tin
Location Internal
Litre capacity 400ml
Drying time 10minutes
Number of coats 3

Health and Safety

Please note that this item has additional safety or regulatory datasheets available. The product may have possible health and safety hazards covered in these documents. Refer to the container for full information and always follow the instructions.

Help & Advice

Wall Painting Calculator

Your requirements

1. What are the wall dimensions?
2. What are the dimensions of the windows / areas that you don't want to cover in metres?
3. How many doors in the room?
4. How many coats of paint do you want?

Your results

You require:

  • 00 litres of paint

This is based on a coverage of 10m² per litre of paint. Always check the coverage on the side of the tin before buying.

Buying guides

Buyer's guide to adhesives and sealants

Buyer's guide to adhesives and sealants

There are lots of good general-purpose adhesives on the market, but for some materials you need something that's specially designed. Our guide will help you decide what is best for the job.

Reviews 4.3  out of 5 stars

Product reassurances

Choose a convenient delivery date on 1000s of products

45 day returns policy

Arrange collection or return to store.
Customer support team - 0333 014 3357

Free delivery on standard orders over £50 placed on

Excludes Large and Bulk delivery