NBS Source
Newton 104


Particularly useful as a means of isolating moisture within pile caps, ring beams and kicker joints to internal walls.


Newton 104 is applied to the surface of concrete to provide in-depth protection against the movement of moisture through the capillaries and hairline cracks within the concrete. It consists of Portland cement, specially treated quartz sand and a compound of active chemicals. Newton 104 is supplied in powdered form and is either sprinkled onto fresh concrete or is mixed with water as a carrier and brush or spray applied as slurry for application to fully cured or older concrete or vertical surfaces.

The active chemicals combine with the free lime and moisture present within the capillaries to form insoluble crystalline complexes which effectively block the capillaries and any minor shrinkage cracks to prevent any further movement of moisture to provide a totally dry surface to the concrete.

Large areas can be quickly treated with Newton 104. The speed of application and the low material application rate (1 kg/m²) makes this product a very low cost option for various scenarios.

Because Newton 104 penetrates deep into the concrete, it does not leave a physical membrane to the surface of the concrete element and so is completely unaffected by loadings imposed by further elements of the build. New concrete elements are placed ‘concrete to concrete’ with no potential for slip or separation as is the case with physical membranes.

Surface preparation is required, as is protection after application - consult manufacturer for details.

Features and benefits:

  • Single component.
  • Ease of application – sprinkled onto new concrete and applied as a simple slurry to vertical and cured concrete.
  • Permeates deep into the concrete to form a barrier against moisture that cannot be damaged or punctured.
  • Loading capabilities only limited by the strength of the concrete.
  • No physical membrane – subsequent concrete placement is ‘concrete to concrete’.
  • Can be applied by airless spray for quicker application.
  • Concrete treated with Newton 104 remains vapour permeable, allowing the structure to breathe.
  • Easy to detail and specify as the concrete surface becomes the membrane.
  • Newton 104 requires controlled curing. Once the Newton 104 begins to cure, moisten with a fine fog spray of water 2–3 times a day for three days. In hot or windy conditions, water spray should be applied more frequently.
  • Cost effective alternative to conventional physical membranes.


  • To be kept rain-free: For 3 hours (at all temperatures).
  • Ready for temporary traffic/ protection boards: After 3 hours (at all temperatures).
  • Initial set: At 5°C: After 6 hours; at 10°C: After 4 hours; at 15°C: After 2 hours; at 20°C: After 1 hour; at 25°C: After 45 minutes.
  • Fully cured: After 28 days.

General information




Portland cement, specially treated quartz sand and a compound of active chemicals. Crystalline waterproofing of concrete.


Powder form


25 kg bag applied at a rate of 1.0 kg per m².

Uniclass 2015

Pr_20_31_53_18 Crystallization active slurry mortarsPrimary


E10/418 Proprietary admixture

J10/130 Proprietary crystallization active mortar

Product range

Liquid Waterproofing Membranes

Specification data - Crystallization active slurry mortars Enhanced data

Third party product certification

To BS EN 1992 (Eurocode 2), BS EN 1542, BS EN 1015, DIN 1048-5 and to BS EN 476-4.

Product Reference

Newton 104 (104)



Application rate

1 kg/m².

Application temperature

+5°C to +35°C.

Service temperature

-15°C to +180°C.



VOC content


Adhesion to concrete

> 0.8MPa BS EN 1542.

Tensile Adhesion

0.7 MPa BS EN 1015-12.


3% to 5%.

Loading capability

Strong as concrete applied to. BS 4551.

Water permeability

<5.0 x 10-13 BTD/TP/02/2002.

Water penetration

<20 mm DIN 1048: Part 5:1991.

Fire testing - non combustibility

Non-combustible BS 476-4.

Digital objects

Platform Compatible Version Certified to




Revit 2016


Download now from NBS National BIM Library


Newton 104 Crystalline Waterproofing Of Concrete

Newton 104 Crystalline Waterproofing Of Concrete