KingCoat Primer A®
Silane/siloxane based hydrophobic primer.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
- Specific gravity
- 0.90 ± 0.05
- Viscosity
- 10 - 20 cP @ 25°C
- Solid content
- 16 ± 1%
Overview
KingCoat Primer A is a penetrating hydrophobic silane/ siloxane based primer. It is used as a primer for KingCoat acrylic based protective coating. When applied, it reacts with concrete and masonry surfaces producing a clear hydrophobic barrier that prevents the passage of water and hence protects exposed reinforced concrete structures from attack by chloride ions.
Why use it
- Deep penetration into substrate.
- Very good reduction of water and chloride intrusion.
- Breathable, allows for water vapour release.
Technical properties
| Specific gravity | 0.90 ± 0.05 |
|---|---|
| Solid content | 16 ± 1% |
| Viscosity | 10 - 20 cP @ 25°C |
How to use
Surface preparation
Surface must be clean, sound and free from oil, grease, curing compound, or any contamination. Any contaminants should be removed by light grit blasting surfaces containing slight surface imperfection or blowholes should be filled with a skim coat of cementitious repair mortar such as KingRep 20. Deep holes and defected areas should be repaired with cementitious products from KINGKRETE-Repair range.
Application
KingCoat Primer A is applied at a rate between 0.2 - 0.4 litre/ m² for horizontal application, and at 0.1 - 0.2 litre/m² for vertical application, depending on the porosity of the substrates.
KingCoat Primer A can be overcoated as soon as it becomes tack-free, this can be achieved within 1 - 2 hours, depending on ambient conditions.
Cleaning
Tools and equipment can be cleaned with KINGKRETE-solvent when wet. Hardened materials must be cleaned mechanically.
Coverage, packaging and storage
Coverage
Horizontal application: 0.2 - 0.4 litre/m².
Vertical application: 0.1 - 0.2 litre/m².
Packaging
KingCoat Primer A is available in 4, 18 and 200 litre drums.
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.