KingProof C300®
Flexible acrylic cement modified one component waterproof coating.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
- Working time
- 1 hr
- Initial setting time
- 4 - 5 hr
- Mixed density
- 1.50 ± 0.10 g/cm³
Overview
KingProof C300 is a one components; flexible polymer modified cementitious waterproof coating suitable for internal and external applications. KingProof C300 provides a hardwearing, seamless, waterproof membrane for potable water retaining structures, tanks, basements, foundations and culverts.
Where to use
- Waterproofing for water retaining structures and reservoirs.
- Waterproofing of basements, roofs, and foundations.
- Waterproofing of bathrooms and wet areas.
- Protection of concrete substrates and masonry against carbon dioxide, chloride ions, water and de-icing salts.
Why use it
- Single component, need only water additions.
- Non-toxic, approved for use in contact with potable water.
- Fungus, mould resistant.
- Excellent bond to porous and non-porous surfaces.
- Breathable.
- Durable, excellent protection against carbon dioxide, chloride ions and water.
- Cost effective, quick and easy brush or spray application.
- Suitable for internal and external applications.
Technical properties
Values @ 25°C
| Mixed density | 1.50 ± 0.10 g/cm³ |
|---|---|
| Working time | 1 hr |
| Colour | Grey |
| Initial setting time | 4 - 5 hr |
| Application temperature | 5 - 45°C |
| Application thickness | 2 mm (with two coats) |
| Elongation at breakASTM D412 | ≥ 20% @ 28 days, 2 mm (@ 5mm/ min speed rate) |
| Tensile strengthASTM D412 | ≥ 1.0 MPa @ 28 days, 2 mm (@ 5mm/ min speed rate) |
| Compressive strengthASTM C109 | ≥ 8.0 MPa @ 28 days (Mortar consistency) |
| Flexural strengthASTM C348 | ≥ 3.0 MPa @ 28 days (Mortar consistency) |
| Adhesion strength on C35 concreteASTM D4541 | ≥ 2.0 MPa @ 28 days |
| Water retentionASTM C309 | Pass @ 2 mm |
| Water permeabilityDIN 1048 | Nil @ 5 bars |
| PROPERTIES | EN 14891 REQUIREMENT FOR TYPE CM | MEASURED VALUE |
|---|---|---|
| Tensile adhesion strength:* | ≥ 0.5 N/mm² | Pass |
| Tensile adhesion strength after water contact:* | ≥ 0.5 N/mm² | Pass |
| Tensile adhesion strength after heat aging:* | ≥ 0.5 N/mm² | Pass |
| Tensile adhesion strength after freeze-thaw cycles:* | ≥ 0.5 N/mm² | Pass |
Standards and approvals
KingProof C300 complies with EN 14891, Type CM.
How to use
Substrate preparation
The surfaces to be coated should be clean, sound, and free from contamination. Remove any traces of curing compound, laitance, organic growth or any other loose materials. This is best obtained by using high pressure water or light grit blasting. Substrate containing honey combing, damaged or deteriorated concrete should be repaired using suitable repair mortars from KINGKRETE repair systems before coating.
Priming
No special primer is required, but substrate should be pre-soaked with clean water prior to application of KingProof C300.
Mixing
To ensure proper mixing, a mechanically powered mixer or drill fitted with suitable paddle should be used. Add the 4.2 litre water to a clean container. The powder component is then added slowly to the water while mixing continuously with low speed mixer/drill (400 - 600 rpm). Mixing time should be continued for 3 minutes until a uniform consistency is obtained.
Application
KingProof C300 can be applied by brush or roller. The mixed material should be brushed well into the surface. Strike off with brush in one direction. Care must be taken not to spread the materials too thin.
The first coat should be applied at a wet film thickness of 1mm. When the material begins to drag, do not add any water, but dampen the surface again.
A minimum of 3 - 5 hours, depending on the prevailing ambient temperature, should be given for the first coat to cure before applying the second coat. If the first coat is fully dried, pre-soaking is needed before applying the second coat.
The second coat should be applied in a perpendicular direction to the previous layer to ensure good bond and coverage.
To achieve a smooth finish, it is recommended to finish the surface with a trowel immediately after brushing the second coat. The total dry film thickness for both coats should be 2 mm.
REMARKS
- KingProof C300 should not be applied to frozen substrates or if ambient temperature is below 5°C or expected to fall below 5°C.
- The area must not be exposed to moving water during application.
- KingProof C300 can be submerged with water after 5 – 7 days of application depending on ambient temperatures and relative humidity.
Cleaning
All tools should be cleaned immediately after finishing using clean water. Hardened materials should be cleaned mechanically.
| PROPERTIES | EN 14891 REQUIREMENT FOR TYPE CM | MEASURED VALUE |
|---|---|---|
| Tensile adhesion strength after contact with lime water:* | ≥ 0.5 N/mm² | Pass |
| Waterproofing | No penetration and ≤ 20 g water gain | Pass |
| Crack bridging under standard condition | ≥ 0.75 mm | Pass |
If C2 tile adhesive (as per ISO 13007) is used in conjunction with KingProof C300, results greater than 1.0 N/mm² are anticipated.
Coverage, packaging and storage
Coverage
Approximately 12.5 - 13 m²/15 kg for one coat @ 1 mm thickness.
Packaging
KingProof C300 is available in 15 kg bags.
Storage
Shelf life is 1 year when stored under cover, out of direct sunlight and protected from extremes of temperature. Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult KingKrete's Technical Services Department.
Health and safety
As with all chemical products, care should be taken during use and storage to avoid contact with eyes, mouth, skin and foodstuffs. Treat splashes to eyes and skin immediately. If accidentally ingested, seek medical attention. Reseal containers after use. Use in well ventilated areas and avoid inhalation.