KingRep ZRII®
Two-component epoxy-based zinc-rich primer for steel.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
Overview
KingRep ZRII is a two-component, high-build epoxy zinc-rich phosphate primer with rust-inhibiting properties. It is an anti-corrosion primer for steel, suitable under a wide range of high-performance topcoats. It is easy to apply and dries quickly, and once dry its abrasion resistance keeps damage in transit and handling to a minimum.
Where to use
- Protective coating to steel reinforcing bars in concrete repairs.
- Touch-up primer for damaged galvanised steel.
- Primer for steel before a suitable topcoat.
Why use it
- Positive protection of steel against corrosion.
- Excellent adhesion to steel.
- Easy to mix and to apply by brush.
- Short overcoating time.
Technical properties
| Appearance | Thick grey liquid |
|---|---|
| Specific gravity | 1.55 @ 25°C |
| Tack-free time (approximate) | 20 min @ 25°C 5 min @ 40°C |
| Recoat time | 5 hr @ 25°C 2 hr @ 40°C |
| Total zinc content in the dry film | > 90% |
| Dry film thickness per coat | > 50 microns |
| Application temperature | 10 - 40°C |
Standards and approvals
KingRep ZRII is formulated to meet the scope of BS 4652:1995, Type 2.
How to use
Method of use
Surface preparation
Grit blast or wire brush the steel to remove all traces of corrosion. The surface must be dry and free from oil, grease and dust.
Apply KingRep ZRII as soon as preparation is complete, so that the steel is not contaminated again. Do not leave blasted or prepared steel uncoated.
Mixing
Mix the components of KingRep ZRII thoroughly before application.
Application
Brush KingRep ZRII onto the prepared steel, making sure the coverage is uniform and complete, particularly on the back face of the reinforcement. Repair mortars can be applied as soon as KingRep ZRII is dry.
Long-term exposure
KingRep ZRII is not designed as a finished coating. Although it protects the steel for some time, overcoat it as soon as possible, particularly in aggressive environments.
Cleaning
Clean tools with KingKrete solvent immediately after use.
Coverage, packaging and storage
Packaging
KingRep ZRII is a two-component system supplied in 4 litre units.
Storage
Store under cover, out of direct sunlight and protected from extremes of temperature. In tropical climates, store the product in an air-conditioned environment. Shelf life is at least 12 months when stored as above.
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 immediate medical attention. Reseal containers after use.