2K epoxy anti-corrosive primer that chemically reacts with surface corrosion to form a stable protective complex. Applies directly to corroded steel up to 60µm, minimizing surface preparation. Minimum 40µm DFT, universal topcoat compatibility.
PLH53-5 Epoxy Rust-Tolerant Anti-Rust Primer is a two-component, polyamide-cured epoxy rust-tolerant anti-rust primer designed for application on slightly rusted steel surfaces and incompletely cleaned metal surfaces.
The product is formulated with epoxy resin, active anti-rust pigments, organic nitrogen base, penetrant, stabilizer, additives, and solvent, and is supplied with a polyamide curing agent as Part A and Part B. The coating film is described as forming stable complexation with the substrate before hardening to stabilize rust and provide durable rust protection.
Designed for application on slightly rusted steel surfaces
Suitable for incompletely cleaned metal surfaces
Minimum surface preparation is stated as St1/St2
Described as stabilizing rust before hardening
Can be applied by airless spray, brush, or roller
Compatible with a wide range of intermediate coatings and topcoats
This primer is suitable for steel protection projects where rust-tolerant application and simplified surface preparation are required.
Typical application areas
Slightly rusted steel surfaces
Incompletely cleaned metal surfaces
Steel substrates requiring anti-rust priming
Maintenance and repair uses
Direct application on slightly rusted steel
Direct application on incompletely derusted metal surfaces
| Item | Details |
|---|---|
| Mixing Ratio (A:B) | 24:3 |
| Induction Time | 5 min |
| Pot Life | 4 h |
| Application Methods | Airless spray, brush, roller |
| Thinner / Cleaner | X-7 epoxy thinner |
| Typical Dilution | 2–8% (air spray/roller may require more) |
| Recoat Interval / Overcoating Interval (25°C) | Minimum 12 h; maximum 7 days |
| Recommended DFT | 50–80 µm per coat (brush/roller: 30–40 µm per coat) |
Remove oil, loose dust, water stains, and loose rust; minimum surface preparation St1/St2; surface profile 15–35 µm. If derusting is more thorough, performance is stated to be more prominent.
| Item | Value |
|---|---|
| Product Type | Two-component, polyamide-cured epoxy rust-tolerant anti-rust primer |
| Appearance / Color | Iron oxide red, gray |
| Theoretical Consumption | 0.16 kg/m² at 50 µm DFT (losses not included) |
| Density / Specific Gravity | 1.4 kg/L |
| Drying / Curing (25°C) | Touch dry 1 h; hard dry 24 h; full cure 7 days |
| Packaging | Part A 24 kg; Part B 3 kg |
| Shelf Life | 12 months |
Storage
Store in a dry, cool, ventilated warehouse away from fire sources and direct sunlight; outdoor storage is not permitted.
This primer is compatible with epoxy MIO intermediate coating, epoxy topcoat, polyurethane topcoat, acrylic topcoat, chlorinated rubber topcoat, high chlorinated polyethylene topcoat, chlorosulfonated polyethylene topcoat, and chlorinated ether topcoat.
What is this primer used for?
This primer is used for application on slightly rusted steel surfaces and incompletely cleaned metal surfaces.
What minimum surface preparation is stated for this product?
Minimum surface preparation is stated as St1/St2.
What application methods are recommended?
The product can be applied by airless spray, brush, or roller.
What surface preparation is required before application?
Remove oil, loose dust, water stains, and loose rust; minimum surface preparation St1/St2; surface profile 15–35 µm.
What is the recommended recoat interval?
The minimum recoat interval is 12 h at 25°C, and the maximum recoat interval is 7 days.
What coatings is it compatible with?
It is compatible with epoxy MIO intermediate coating, epoxy topcoat, polyurethane topcoat, acrylic topcoat, chlorinated rubber topcoat, high chlorinated polyethylene topcoat, chlorosulfonated polyethylene topcoat, and chlorinated ether topcoat.
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