2K alkyl silicate inorganic zinc primer delivering cathodic protection with weld and cut tolerance on structural steel. Suited for low-temperature application with universal topcoat compatibility. Sa2.5 prep required, 30µm DFT.
PLE06-3 Inorganic Zinc Silicate Primer is a two-component inorganic zinc silicate primer based on ethyl silicate resin and zinc dust.
The product is formulated with ethyl silicate resin, zinc dust, toughening agent, anti-settling agent, and solvent, and is supplied as Part A and Part B. It is described as providing excellent corrosion resistance with cathodic protection, strong chemical resistance, weathering and abrasion resistance, heat resistance, and suitability for on-line welding/cutting.
Provides excellent corrosion resistance with cathodic protection
Described as having strong chemical resistance
Described as having weathering and abrasion resistance
Described as having heat resistance
Suitable for on-line welding/cutting
Typically used with epoxy coatings for corrosion protection
This primer is suitable for long-term steel protection projects in industrial and marine environments.
Typical application areas
Blast-cleaned steel
Steel requiring long-term anti-corrosion priming
Steel used with epoxy coating systems
Properly prepared steel requiring heat resistance up to 400°C
| Item | Details |
|---|---|
| Mixing Ratio (A:B) | 28:7 |
| Induction Time | No limit (as stated) |
| Pot Life | 4 h (25°C) |
| Application Methods | Airless spray, brush |
| Thinner / Cleaner | X-11 inorganic zinc thinner |
| Typical Dilution | 5–20% |
| Recoat Interval / Overcoating Interval (25°C, RH 70–85%) | Minimum 24 h (longer at lower humidity); maximum not limited |
| Recommended DFT | 50–75 µm per coat (brush: 40–50 µm per coat) |
Abrasive blasting to Sa 3 (not lower than Sa 2.5), or power-tool cleaning to St 3; surface profile 30–75 µm.
| Item | Value |
|---|---|
| Product Type | Two-component inorganic zinc silicate primer |
| Appearance / Color | Gray |
| Theoretical Consumption | 0.19 kg/m² at 50 µm DFT (losses not included) |
| Density / Specific Gravity | 1.6 kg/L |
| Drying / Curing (25°C, RH 70–85%) | Touch dry 10 min; hard dry 2 h; cured 24 h |
| Packaging | Part A 28 kg; Part B 7 kg |
| Shelf Life | 6 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 intermediate coating, epoxy topcoat, polyurethane intermediate coating, and polyurethane topcoat.
What is this primer used for?
This primer is used as a long-term anti-corrosion primer for blast-cleaned steel.
What is it based on?
The product is based on ethyl silicate resin and zinc dust.
What application methods are recommended?
The product can be applied by airless spray and brush.
What surface preparation is required before application?
Abrasive blasting to Sa 3 (not lower than Sa 2.5), or power-tool cleaning to St 3, with a surface profile of 30–75 µm.
What is the recommended recoat interval?
The minimum recoat interval is 24 h at 25°C and RH 70–85%, and it is longer at lower humidity; the maximum interval is not limited.
What coatings is it compatible with?
It is compatible with epoxy intermediate coating, epoxy topcoat, polyurethane intermediate coating, and polyurethane topcoat.
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