STONE WH+ Hydrophobic Impregnator Waterproofing Sealer

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  • WATERPROOF LEAKING MASONRY: The nanoSystem WH+ will apply a powerful water-proofing impregnation to keep your walls and mortar joints leak free under the most adverse weather conditions like wind driven rain! Just spray, brush, and leave to dry!

  • COMPLETELY INVISIBLE PROTECTION: After drying, the protective sealer is completely invisible and does not cause any discolorations. The coating is abrasion and UV resistant, yet remains fully breathable, ensuring it will not cause any condensation issues. What's more, it leaves no sticky silicon or wax residue - none of that with our nanoSystem!

  • SUITABLE FOR MANY NATURAL STONES & CONCRETE: This great water-proofing impregnsator is perfect for a multitude of natural stone and concrete, like sandstone, limestone, granite, brick, cement, mortar joints and more! 

  • UP to 25 YEAR LONG PROTECTION: Not only does the nanoSystem protect stone, extending its lifespan, it does so for a long time, too! It will take up to 25 years before the protection will need a reapplication!

  • ECO-FRIENDLY & COST-EFFECTIVE: 125ml/m2-250ml/m2, water based, contains no solvents, VOCs or Fluorocarbons. The nanoSystem STONE WH+ can do more than you probably realize. Keep your building dry and free from leaks and dampness, protect from damage, protect the environment, save money! By preventing freeze-thaw damage on your masonry and joints, it can help extend the life and save money over the long term.

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nanoSystem STONE WH+ is a water based silane solution designed for waterproofing (hydrophobic impregnation) and protection of absorbent masonry and concrete surfaces. It penetrates deep into the pores of the substrate to create a durable hydrophobic barrier with breathable properties that will protect against water ingress, frost damage, chloride ion attack and salt efflorescence.

nanoSystem STONE WH+ impregnates into masonry and mortar joints, providing excellent protection against water, dirt, salt, acid rain and extreme weather conditions, preventing leaks occurring with wind driven rain.
The deep penetration properties of the impregnation enable it to seal minute cracks, prevent water ingress beyond the surface and stop salt-efflorescence problems caused by capillary moisture reaching the surface. A treated substrate will remain fully breathable and have excellent resistance to freeze-thaw damage. Under wet conditions its thermal resistance is maximised, improving the energy efficiency of a building.

Suitable applications:

  • Concrete structures, water installations
  • Leaking mortar joints or render
  • Basements and damp walls
  • Brick building prone to salt efflorescence
  • Waterproofing and damp-proofing


  • Creates a breathable layer deep into the substrate that prevents water ingress
  • Reduction in water absorption after curing by > 80%
  • Deep penetration > 25mm in porous concrete
  • Long life span up to 12 years WH and 25+ years WH+
  • Fully vapour permeable and breathable to avoid condensation build up
  • Resistant to salt water, salt air and acid rain
  • Improves thermal resistance of material
  • Energy cost savings as less heat is lost as cold rain water cannot dampen stone or joints
  • Strengthens substrate through consolidation
  • Frost resistant to freeze-thaw cracking
  • Prevent salt efflorescence and chloride ion ingress
  • Abrasion resistant impregnation
  • Allows for painting or nanoSystem STONE SC stay-clean coating to applied as top coat.
  • Eco-friendly, non-toxic, virtually VOC free

Durability: Up to 25 years

Applications: Concrete, cement, mortar, gypsum, stucco and render, mineral plasters, limestone and sandstone.

Efficiency: Depends on surface absorbency, standard consumption for concrete is 200-350 ml/m2 or 3-5 m2/L

Storage: Store at temperatures above +5°C

Preparation: Cracks in concrete should be repaired prior to application. Surfaces should be free of dust, dirt, grease and existing paint coatings. Apply on clean and dry surface in good weather conditions above +5°C. Do not use in rain or high humidity. Best results are obtained on dry, highly absorbent surfaces. Ensure new concrete is dry.

Directions: Application can be by pump sprayer, painting with a roller or a paintbrush. Apply bottom to top paying attention for any undesired run of onto horizontal surfaces. Protect glass and remove immediately with water. During impregnation and for 24 hours following do not allow contact with water. For more detailed instruction please refer to the product Technical Data Sheet


Additional Information

HS Code 38249070
UN Number No
Hazmat No


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General Information

Contact may cause skin or eye irritation. Using with adequate air ventilation, eye protection, and gloves is recommended. Avoid contact with eyes and skin.

Sealer may be damaged if frozen prior to use. Not intended to seal cracks.

The Company does not warranty specific performance results or compatibility with products manufactured by others. The Company shall bear no liability, other than replacement of defective product. A small test must be conducted prior to application. Based upon this test, the purchaser shall determine for themselves the suitability of this product for the intended use.

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