AQUASEAL-WB Silicone Masonry Sealer

Our Aquaseal-WB Silicone Masonry Sealer is a water based silicone impregnation agent which provides a water repellent coating to all masonry and concrete surfaces, and also allows the walls to breathe.

Silicone Masonry Sealer reacts with moisture and CO2 in the air to create an efficient barrier against water penetration without hindering the passage of air and vapour, enabling the wall or material to still breathe.

All porous building cladding (Oamaru stone, Concrete block, Summer hill stone etc) should be sealed to prevent ingress of water, dust, grime and even stains. Consider that an untreated concrete tile roof can absorb 300-500 kg of water, sealing can substantially reduce the roof weight (desired in earthquake prone areas).

Silicone Masonry Sealer prevents dampness and mould on internal walls, helps in the prevention of freeze/thaw damage on porous surfaces by stopping ingress of moisture.

It can be applied to a dry or slightly damp surface.

By preventing the ingress of water into the masonry cladding, mould issues on the interior of a building can be reduced and avoided.

Mixing ratio: Add 1 litre of concentrate to 14 litres of water, giving 15 litres of usable solution.

Coverage: approx 3sqm per litre

Quantity: 5L or 20L

Download the Aquaseal-WB SDS and Data Sheet here

What Do I need?

Compare Nanocote and Aquaseal.



  • Invisible once dry on stone and concrete. May leave a white salty film on red brick.

  • Invisible once dry.

  • Lasts approx. 3 years.

  • Lasts approx. 8 years.

  • Lower purchase price.

  • More cost effective in the long run as more durable.

  • Aquaseal is not harmful to plants – (we do advise covering delicate or important plants)

  • Nano is not harmful to plants – (we do advise covering delicate or important plants)

  • Nontoxic to people and pets, unlike many others on the market.

  • Nontoxic to people and pets, unlike many others on the market.

  • Aquaseal can be applied to damp surface.

  • Nano can only be applied to completely dry surface.

  • Aquaseal will etch glass and joinery – so covering prior to sealing is recommended.

  • Nano does not etch glass and joinery (it can leave a light residue, so is advised to cover windows prior to sealing)

  • Fume free and non-flammable.

  • Not corrosive, non-flammable and non-carcinogenic. Odour/fume free.

  • As the crystal particles are bigger than the Nano-cote, Aquaseal is suitable for porous brick and not suitable for dense brick.

  • Penetrates deeper into the brick or stone than Aquaseal.


  • Does not rely on solvents and other hazardous materials for penetration


  • Meets modern environmental and other building  standards and requirements

​Have a Question?

Talk to us about your surface sealing project today and let us know your questions!

We can give you advice about your project and let you know any additional information you need.

We deliver New Zealand wide! from Stewart Island to Cape Reinga, from Haast to Chatham Islands, and everywhere in between!


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