SpECtite CW100

FLEXIBLE CEMENTITIOUS WATERPROOF MEMBRANE

SpECtite CW100 is a two-component polymer-modified cementitious coating. The product may be trowel, brush or spray applied to provide a flexible, waterproof barrier.

Technical Details

SpECtite CW100 may be used where there is a requirement to exclude water from a building or retain it within a structure. The material is particularly effective where there is a requirement for crack bridging capability, typically in the following situations:
• Potable water containers, tanks and reservoirs.
• Swimming pools and silos.
• Waterproofing planter boxes.
• Waterproofing new and existing buildings.
• As a backing to marble and granite to prevent water ingress and thus alleviate surface staining.
• Protection against brackish water.
• Coating seawater channels.
• Wet Areas, Toilets, Balconies & Loggia.
• Withstands hydrostatic pressures.
• Good bond strength to concrete and masonry.
• Good crack bridging capabilities even after long periods of immersion.
• Long pot life even at high temperatures.
Pot life @ 25°C 45 mins
Colours grey, off-white
Tensile strength (ASTM D412) 0.8 ± 0.2 MPa
Water Absorption 3.27%
Adhesion to concrete 0.8 ± 0.2 MPa
VOC (USEPA 24) <1.0 g/L
Minimum application Temperature 5°C

Note: SpECtite CW100 meets the requirement of BS 6920 to be used in contact with potable water.

Preparation:
It is essential that adequate preparation is carried out prior to the application of SpECtite CW100. The substrate must be clean and completely free from contaminants including grease, oil and loose material. Any repairs to the substrate should be carried out using SpECbuild cementitious repair mortars.
The product cannot be mixed by hand.
The liquid should be poured into a 25 litre plastic or metal drum. The powder should be added slowly whilst mixing with a spiral paddle attachment on a slow speed electric drill. Mixing should continue until the product is lump free and for a minimum of 5 minutes.
Application:
The prepared substrate should be dampened using a fine water spray. Care should be taken with porous substrates as more extensive pre-soaking will be required. Any free water on the surface should be removed immediately prior to applying SpECtite CW100.
While the substrate is damp but free from standing water, apply the mixed product a minimum of 2 coats by medium hard short bristle brush, trowel or roller checking that the first coat is at a minimum wet film thickness of no more than 1.5mm and no less than 0.5mm. The product should always be finished in one direction.
The second coat should be applied as soon as the first coat is set hard, normally after a minimum of 3 hours @ 25°C and longer at lower temperatures. This second coat should again be finished in one direction (at 90° to the first coat).
Mixing:
SpECtite CW100 is supplied as a two component pack consisting of a liquid component and a powder component.
The total thickness should be 2mm on walls and 3mm on floors.
CURING:
Normally SpECtite CW100 does not need to be cured, however, in hot conditions where there exists high air movement, protection against premature drying is essential.
If spray application is considered, contact our Technical Service section for further information.
SpECtite CW100 is supplied in 22.1kg two part packs. A complete mixed pack will cover approximately 11.0m2 at 1.0 mm thickness depending on the substrate profile.
Contact us for more info.

Product Videos

Product FAQ

Yes, SpECtite CW100 is Ashgal approved, contact us for the approvals if needed.
Yes, SpECtite CW100 is Kahrama approved, contact us for the approvals if needed.
Yes, SpECtite CW100 is non toxic, hence it can be in contact with potable water.
Yes, SpECtite CW100 offer good crack bridging capabilities even after long periods of immersion.

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