KingProof C400®
Two-component, acrylic-modified, flexible cementitious waterproofing and protective coating.
Overview
KingProof C400 is a two-component, acrylic-modified cementitious coating applied by brush, roller or trowel to waterproof and resurface concrete, masonry and most other construction substrates. It provides an effective barrier to waterborne salts and atmospheric gases and, once applied, forms a hard-wearing, seamless, waterproof membrane suitable for roofs and foundation protection.
Applications
- Refacing and evening out variations in concrete surfaces
- Waterproof lining for water-retaining structures
- Coating of seawater channels
- Sealing and coating of tie-bar holes to ensure water tightness
- Foundation protection
- Waterproof coating for wet areas and sunken slabs
- Backing to marble and granite to prevent water ingress and surface staining
- Protection of concrete against carbonation and chloride attack
Advantages
- Protects against carbonation – a 1 mm coating provides anti-carbonation cover equivalent to over 800 mm of concrete
- Waterproof – suitable for internal and external waterproofing
- Excellent adhesion – bonds to porous and non-porous surfaces
- Flexible – accommodates the thermal movement of concrete structures
- Suitable for contact with potable water – can be used to line concrete water tanks
- Vapour permeable – repels water while allowing the concrete to breathe, preventing osmosis
- Compatible with damp surfaces – can be applied to 24-hour-old concrete, giving immediate protection
Technical Properties
| Property | Value | Standard |
|---|---|---|
| Colour | Grey | — |
| Density | 1,940 kg/m³ | — |
| Volatile organic compound (VOC) content | 0.5 g/ltr | — |
| Water-vapour transmission | Sd < 1.5 m | — |
| Water penetration under pressure | 7 bar – no leakage at 2 mm DFT | — |
| Chloride-ion diffusion resistance | Not measurable after 24 months of testing | — |
| Elongation at break | > 5% (unbonded) | — |
| Coverage | 1.94 kg/m² per 1 mm thickness | — |
| Recommended thickness | 2 mm DFT | — |
Standards & Approvals
Usage & Packaging
KingProof C400 is available in 20 kg double packs, consisting of 5 kg liquid (component A) and 15 kg powder (component B).
1.94 kg/m² per 1 mm thickness; recommended thickness 2 mm DFT.
KingProof C400 has a shelf life of 6 months in original, unopened packaging when stored indoors between 5°C and 35°C, out of direct sunlight. Do not allow the material to freeze, as this will render it unusable.
Kit
Product family
Elastomeric acrylic waterproof coating for roofs.
Elastomeric acrylic waterproof coating for roofs.
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