NBS Source
Newton 807 BKK eco


  • Preventing wind-driven rain ingress to north facing or exposed elevations.
  • Preventing moisture getting to insulation within cavity walls.
  • Lime rendered walls.
  • Water repellent treatment of walls and exposed brickwork, natural stone or non-glazed ceramic.
  • Improving the thermal performance of all wall types.


A transparent colourless wall coating, water and siloxane based, suitable for use to protect porous walls of various substrates from wind-driven rain. After treatment, the wall is deeply impervious to water ingress and so is better protected against frost damage. The treated wall will continue to dry, and vapour drive is not affected due to the coating being very vapour permeable.

The resultant dry wall is much more thermally efficient and will save on energy costs. Having a low molecular weight, Newton 807 BKK penetrates deeply into the substrate, creating an invisible but deep layer of protection that is extremely stable to lime and very permeable to water vapour.

Features and benefits:

  • DIY solution - easy, quick and cost effective to apply.
  • Very cost effective.
  • Long lasting water repellence.
  • Increased thermal efficiency of the wall.
  • Permeable to water vapour.
  • High resistance to weathering and UV.
  • Does not alter the colour of the wall finish.
  • Prevents surface efflorescence and mould.
  • Solvent-free, non-toxic and odourless.
  • Non-flammable - No volatile organic compounds (VOCs).
  • Suitable substrates include mortar, natural stone, lime render, non-glazed ceramic and concrete.
  • Life expectancy of approximately ten years.
  • Can be applied via brush, roller, or garden-type pressure spray.
  • Please note that this product is not to be diluted.

General information


Liquid form





Water Repellent Treatment for Exposed Walls


Packaging - plastic bucket: 5 L


Pr_35_31_68_97 Water repellentsPrimary


J30/10 Cold-applied damp-proofing

J30/110 Cold-applied tanking

J30/130 Cold-applied damp-proofing

M60/175 Protective coating

M60/18 Special coating

M60/195 Special coating

Product range

Damp Proofing Systems

Specification data - Water repellents Enhanced data


Transparent wall coating which is water and siloxane based.

Product Reference

Newton 807 BKK eco (BKK)

Yield - Mortar

0.2–0.3 L/m².

Yield - Natural stone

0.3–0.7 L/m².

Yield - Lime render

0.5–0.7 L/m².

Yield - Non-glazed ceramics

0.3–0.7 L/m².

Yield - Concrete

0.3–0.7 L/m².


Do not dilute.

Application temperature

+5°C to +35°C.

Service temperature

-15°C to +40°C.

Shelf life

24 months.

Ready for next coat (20°C; Relative Humidity (RH) 40%)

60 minutes.

Fully cured (20°C; Relative Humidity (RH) 40%)

Four hours.


Ten years.

Vapour permeability μ)

Highly breathable.


Diasen BKK Eco

Diasen BKK Eco

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