Interior Seal Damp 2.5L

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Protects interior plaster, brick and cement from damp
Interior Seal Damp

In detail

Blackfriar Interior Seal Damp helps to protects interior plaster, brick and cement from damp. The ideal product for use prior to decorating as it can be papered and painted over. 

With a coverage of up to 14sq/m per litre this Interior Damp Seal is touch dry in 1-4 hours and recoatable after 12-24 hours. Not suitable for wood.

Application Methods
Brush, Roller
Up to 14sq/m per litre 
VOC level
Not Recommended 
Touch dry
1-4 hours 
12-24 hours 
Brush cleaner or White spirit 

Additional information

Surface Preparation

Ensure the surface to be coated is clean, dry, sound and free from wax, grease or any other contamination. Mould growth should be treated with Blackfriar Anti Mould Solution and allowed to dry.


  • Stir thoroughly prior to use.
  • Can be applied by brush, roller or spray.
  • Apply at least two coats, lightly rubbing down between to prepare the surface for subsequent redecoration.
  • Be sure to apply 300mm beyond all sides of the dampness.
  • Thinning is not recommended.

Clean Up

Remove as much product as possible from the application equipment before washing with White Spirit.

Do not empty into drains or watercourses. Some local authorities have special facilities for the disposal of waste coatings.