KingProof PUC100®
Cold-applied, two-component pure polyurea membrane for waterproofing and protection.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
- Tensile strength ASTM D412
- ≥ 3.5 MPa
- Bond strength to concrete ASTM D4541
- ≥ 1.5 MPa
- Elongation ASTM D412
- ≥ 450%
- Shore A hardness ASTM D2240
- 60 ± 5 @ 7 days
Overview
KingProof PUC100 is a two-component, high-solids, fast-curing, aromatic pure-polyurea coating that cures to form an elastomeric, watertight and waterproof polyurea membrane with high mechanical properties and strong adhesion to many types of surface. Its adaptability and drying time make it suitable for application on uneven surfaces and areas of any shape, whether curved or squared.
Where to use
Waterproofing and protection of:
- Wet areas, bathrooms and kitchens
- Balconies and roof decks
- Under-tile applications
- Concrete structures
- Floors, parking lots and garages
- Over asphalt membranes and polyurethane insulation foams
- Light roofing of metal or fibre-cement
- Green roofs and planters
Why use it
- Excellent mechanical properties – high tensile and tear strength, high abrasion resistance
- Excellent adhesion to most common substrates
- Strong, flexible and hard-wearing membrane
- Cold-applied by roller, brush, trowel, squeegee or spray
- Excellent stability and durability; fast curing
- Environmentally friendly, low-VOC
- Good breathability, minimising humidity build-up under the coat
- Resistant to root penetration
Technical properties
| Colour | Grey, white, as requested |
|---|---|
| Density | 1.30 ± 0.05 g/cm³ |
| Solid content | 91 ± 2% |
| Pot life | 70 min @ 25°C; 50 min @ 40°C |
| Tack-free time | 3:30 – 4:30 hr |
| Minimum recoating time | 4 hr |
| Maximum recoating time | 7 days |
| Full cure | 7 days |
| Application temperature | 5 to 35°C |
| Service temperature | -30 to 80°C |
| Shore A hardness (ASTM D2240) | 60 ± 5 @ 7 days |
| Taber abrasion, CS17 (ASTM D4060, 1000 g/1000 cycles) | ≤ 50 mg |
| Tensile strength (ASTM D412) | ≥ 3.5 MPa |
| Elongation (ASTM D412) | ≥ 450% |
| Bond strength to concrete (ASTM D4541) | ≥ 1.5 MPa |
| Tear strength (ASTM D624) | ≥ 20 N/mm |
| Crack bridging (ASTM C1305 @ 23°C & -20°C) | No cracks after 10 cycles @ 1.5 mm |
| Water-vapour diffusion resistance (EN 1931) | µ = 1,700 |
| Water-vapour transmission (ASTM E96) | Medium; 0.6 – 6.0 g/(m²·hr) |
| Water permeability (DIN 1048 @ 5 bar) | Nil (Pass) |
| VOC | ≤ 130 g/ltr |
How to use
Method of use
Surface Preparation
The surface should be clean, dry, sound and free from oil, grease and wax. Remove cement laitance, loose particles, mould-release agents and curing membranes. The substrate must have a minimum compressive strength of 25 MPa and a minimum adhesion strength of 1.5 MPa. Fill surface irregularities with a suitable epoxy resin mortar. Atmospheric relative humidity should not exceed 85%, and new concrete must be cured for at least 28 days. Do not apply in the presence of moisture.
Priming
Absorbent surfaces such as concrete, cement or screed should be primed with a suitable KingKrete polyurethane primer; for damp surfaces (screed RH above 85%), apply a suitable damp-proof primer by brush or short-hair roller. Non-porous substrates (steel, aluminium, ceramic and porcelain tiles) should be primed with a suitable polyurethane primer. Avoid primer ponding; highly porous surfaces may require two coats. Consult the KingKrete Technical Department for specific primer recommendations.
Mixing
Stir the individual components for 2 – 3 minutes with a low-speed mixer, ensuring the bottom and sides are thoroughly scraped. Transfer the entire contents of component B into component A and mix slowly for at least 3 minutes until a homogeneous mix is achieved.
Application
Apply the mixed KingProof PUC100 to the prepared, primed surface by brush, squeegee, lambswool roller or airless spray. If required, apply a second coat at right angles to the first after 4 hours to 7 days.
Uv protection
As with all aromatic coatings, KingProof PUC100 should be sealed with a suitable polyurethane (aliphatic) protection coat to prevent yellowing on UV exposure; this does not affect the physical properties of the product. Consult the KingKrete Technical Department for a suitable aliphatic topcoat.
Cleaning
Clean all tools with a suitable polyurethane solvent immediately after use.
Coverage, packaging and storage
Consumption
Apply KingProof PUC100 in one or two coats with a minimum total consumption of 1.8 – 2.0 kg/m² to provide 1.5 mm total dry film thickness.
Packaging
KingProof PUC100 is available in 23 kg packs (component A: 21 kg; component B: 1.85 kg).
Storage
Store in unopened original packaging in cool, dry conditions, protected from frost and direct sunlight. At low temperatures store above 15°C before mixing, as low temperatures increase viscosity and can impair mixing and application. For specific storage advice, consult the KingKrete Technical Services Department.
Health and safety
Apply in well-ventilated areas. Do not smoke and do not apply near naked flames; in enclosed areas use forced ventilation and active-carbon masks. Avoid contact with the eyes and skin. For further information, refer to the Safety Data Sheet.