KingProof Primer PU®
Single component solvent based polyurethane primer.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
- Density
- 0.98 ± 0.02 g/cm³
- Volume solid
- 40 ± 5%
Overview
KingProof Primer PU is a low viscosity single component solvent based moisture cure polyurethane primer especially formulated to significantly enhance the adhesion of KingProof Range of waterproofing membrane with the most common construction substrates.
Where to use
- KingProof Primer PU is used to enhance the bond between KingProof Range of products and the substrates in the following applications:
- High porous substrate such as normal grade concrete and red bricks.
- Impervious substrates such as aluminum, steel and glass.
Why use it
- Significantly improves the adhesion of KingProof Range over several construction substrates such as concrete, galvanized steel, aluminum and glass.
- Increases the service life of the waterproofing system.
- Easy to use, single component product that does not need mixing.
- Economical solution in waterproofing systems.
Technical properties
| Colour | Clear brownish |
|---|---|
| Density | 0.98 ± 0.02 g/cm³ |
| Volume solid | 40 ± 5% |
| Minimum over-coating time | 4 hr |
| Maximum over-coating time | 24 hr |
| Application temperature | 10 to 35°C |
How to use
Surface preparation
The substrate should be sound, clean and free from contaminations. Surface laitance should be removed by light scrabbling or grit blasting.
Application
Stir the product well before use, KingProof Primer PU can be applied by a brush or roller. One or two successive coats of KingProof Primer PU should be applied at a rate of 5 - 10 m2/ litre depending on the porosity of the substrate and left to dry before being overcoated with KingProof Range of waterproofing membranes.
Care must be taken in the application of the material according to the coverage rate, as different thicknesses might adversely affect the adhesion and durability.
Cleaning
All tools should be cleaned immediately with paper towels after finishing and then wiped using KingKrete Solvent PU.
Limitations and notes
KingProof Primer PU is not recommended for application over highly humid substrate (i.e. substrates with RH greater than 80%). Under such circumstances, it is recommended to use KingProof Primer W. Consult KINGKRETE's Technical Department for further information.
Coverage, packaging and storage
Coverage
KingProof Primer PU should be applied in one coat or two successive coats at a rate of 5 - 10 m²/ltr depending on the substrate porosity to achieve a dry film thickness of 40 - 80 microns per layer.
Packaging
KingProof Primer PU is available in and 20 Kg packs.
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.