KingProof PUP®
Polyurethane liquid membrane for protection of KingProof range.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
Overview
KingProof PUP is an aliphatic one-component polyurethane liquid membrane which cures upon exposure to the humidity in the atmosphere producing a hydrophobic transparent membrane with excellent mechanical properties. KingProof PUP is highly resistance to UV radiation and will not be affected from direct exposure to sunlight.
Where to use
KingProof PUP is recommended to be used as a top-coat over KingProof membranes to protect the colour from changing after exposure to direct sunlight as well as maintaining and improving the mechanical properties of the membrane. KingProof PUP can also be used to protect concrete and synthetic coats.
Why use it
- Excellent heat and UV resistance.
- High mechanical properties and chemical resistance.
- Highly hydrophobic polyurethane resin.
- Wide service temperature range.
- Cold resistance, the membrane stays elastic down to minus 30°C.
Technical properties
| Specific gravity | 1.00 ± 0.05 |
|---|---|
| Tack free time | 6 - 8 hr @ 25°C and 55% RH |
| Recoat time | 24 hr |
| Hardness shore DASTM D2240, DIN 53505, ISO R868 | 40 |
| Service temperature | -40 to 80°C |
| Tensile strength at breakASTM D412, EN ISO 527-3 | 40 MPa @ 23°C |
| ElongationASTM D412, EN ISO 527-3 | > 300% @ 23°C |
| Maximum shock temperature | 200°C |
| Water vapour transmissionASTM E96 | 0.8 g/m².hr |
| QUV accelerated weathering testASTM G53 | Passed (2000 hr) |
| Hydrolysis (8% KOH, 10 days @ 50°C) | No significant elastomeric property change |
| Hydrolysis (5% NaCIO, 10 days) | No significant elastomeric property change |
| Water absorption | < 1.4% |
| Thermal resistance (200 days @ 80°C) EOTA TR011 | Passed |
How to use
Surface preparation
Surface must be clean dry and smooth, free from oil, grease and wax contaminants. Cement laitance, loose particles, mould release agents and cured membranes must be removed.
Mixing
When used as a top protection coat over KingProof membranes, add 10% pigment to KingProof PUP to achieve the final required colour and protection. Use a low speed mixture (300 rpm) and avoid trapping air bubbles.
Application
Apply KingProof PUP with a brush, roller or an airless spraying machine in two coats with consumption of 0.15 g/m2 per coat, leaving 24 hours between them.
Cleaning
All tools should be cleaned after finishing with paper towels and then wipe by using KINGKRETE Solvent PU. Do not try to clean rollers.
Coverage, packaging and storage
Consumption
Top-coat over KingProof membranes:
- First coat: 0.15 kg/m².
- Second coat: 0.15 kg/m².
- Total consumption: 0.3 kg/m².
Packaging
KingProof PUP is available in 1, 4 and 20 litre pails.
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.