• Premium solvent-free silicone waterseal
• Masonry waterproofer for porous surfaces
• For brick, stone, concrete and most porous masonry
• Repels water while letting the surface breathe
• Helps prevent damp penetration and frost damage
• 5 L, single or box of 4

First, make sure the masonry is clean, sound and dry, and treat any mould or growth first.

Next, apply the waterseal generously by brush, roller or sprayer, working top to bottom.

Then apply a second wet-on-wet coat where the surface is very porous, to give full coverage.

Finally, let it dry. It repels water while staying breathable. For a coloured patio and slab sealer, see Patioseal; for natural stone, Indian Sandstone Sealer.

• Product code: BDH120
• Type: premium solvent-free silicone masonry waterseal
• Use: brick, stone, concrete and most porous masonry
• Action: repels water, breathable, helps prevent damp and frost damage
• Application: brush, roller or sprayer
• Size: 5 L, single or box of 4

What is Silicone Ultra Waterseal for?

Waterproofing porous masonry, such as brick, stone and concrete, to keep driving rain out while letting the wall breathe.

Is it breathable?

Yes, it repels liquid water but remains breathable, so trapped moisture can still escape rather than being sealed in.

How do I apply it?

On clean, dry, sound masonry, apply generously by brush, roller or sprayer, with a second wet-on-wet coat on very porous surfaces.

Does it change the look?

It is designed to be effectively invisible on most masonry, waterproofing without a surface film. Test an area first.

Is it solvent-free?

Yes, it is a premium solvent-free formulation.

How is it different from Patioseal?

This is a masonry wall waterproofer. Patioseal and Indian Sandstone Sealer are for patios and paving. Choose by the surface.