Epoxy Zinc-rich Primer (2K)
Description
Epoxy Zinc-rich Primer (2-component) is made from refined epoxy resin, zinc powder, and other materials. It is a two-component paint that is mixed with a curing agent in proportion. This paint is suitable for steel components such as ships, bridges, containers, and chemical equipment.
Best For
- steel structure protection
- industrial floor systems
- heavy-duty anti-corrosion projects
Buyer Benefits
- strong adhesion to prepared substrates
- good chemical resistance
- suitable for multi-coat protective systems
Key Features
- Resistant to solvent corrosion
- Excellent anti-rust performance
- Provides cathodic protection
- Penetrates into welding seams
- Excellent water-resistant and anti-rust properties
- Stable weather resistance under sunlight
Typical Coating System
Typical epoxy system: epoxy primer, optional epoxy intermediate coat, and polyurethane or fluorocarbon topcoat when exterior color and weather resistance are required.
Technical Specifications
| Product Family | Epoxy |
| Coating Layer | Primer |
| Component System | 2K system, confirm mixing ratio from current TDS |
| Recommended Use Snapshot | steel structure protection, industrial floor systems |
| Typical System | Typical epoxy system: epoxy primer, optional epoxy intermediate coat, and polyurethane or fluorocarbon topcoat when exterior color and weather resistance are required. |
Confirm current TDS/SDS, packaging, shelf life, and destination-market requirements before quotation or shipment.
Request Current TDS/SDSApplication Guide
| Application Method | 1. Surface Preparation: For steel with mill scale: Sandblast to Sa2.5 grade, with a surface roughness of 30-75um. Alternatively, use pickling treatment to completely remove all mill scale and rust, followed by thorough neutralization, water washing, and passivation. For steel without mill scale: Sandblast to Sa2.5 grade or grind with pneumatic or electric flexible grinding wheels to St3 grade. For steel coated with shop primer: Perform secondary rust removal on damaged paint film areas, rusted areas, and white rust on zinc-rich primer. Completely remove the white rust and grind to St3 grade. 2. Application Conditions The substrate temperature must be at least 3°C higher than the dew point temperature. The relative humidity should not exceed 85%. When the outdoor temperature is below 0°C, the reaction of the epoxy curing agent stops, and construction is not advisable. 3. Recommended Number of Coating Passes For airless spraying: One pass with a dry film thickness of 50-80um. For brushing or rolling: 2-3 passes are required. 4. Coating Intervals At a substrate temperature of 10°C: Minimum interval of 48 hours. At 20°C: Minimum interval of 24 hours. At 30°C: Minimum interval of 16 hours. The maximum interval can be several months (if no zinc salts have formed on the paint film surface). Note on Zinc-rich Primer: After extended exposure, zinc salts (i.e., basic zinc carbonate, also known as white rust) may form on the surface. Therefore, the paint film should not be exposed for too long before applying the next layer. If a longer coating interval is necessary, it is recommended to apply epoxy micaceous iron oxide paint as a seal coat to reduce the need for secondary rust removal. In clean indoor environments, the zinc salts will not form for several months; in clean outdoor environments, no zinc salts will form within 14 days. However, in industrial or marine environments, zinc salts will form quickly. As such, the interval for applying subsequent paint should be minimized. If zinc salts have already formed on the surface, sweep blasting or mechanical rust removal methods should be used to remove all zinc salts and dirt before applying the next primer. 5. Subsequent Matching Coats Epoxy micaceous iron oxide anti-rust paint, iron oxide red epoxy anti-rust paint, epoxy zinc phosphate anti-rust paint, epoxy aluminum tripolyphosphate anti-rust paint, epoxy bituminous paint, chlorinated rubber anti-rust paint, acrylic polyurethane, and other types of topcoats. |
Compatible Products
Product FAQ
Can I request the current TDS and SDS for Epoxy Zinc-rich Primer (2K)?
Yes. Contact the Qilu Paints export team with the product name, destination country, and application environment to confirm current TDS/SDS, packaging, and export requirements.
How should Epoxy Zinc-rich Primer (2K) be selected for a coating system?
Confirm substrate, exposure environment, required durability, compatible primer or topcoat, and destination-market documentation before quotation or shipment.
What should be checked before applying Epoxy Zinc-rich Primer (2K)?
Check surface cleanliness, surface profile, ambient temperature, substrate temperature, dew point, and relative humidity before application. Stir thoroughly before use.
How should Epoxy Zinc-rich Primer (2K) be stored and handled?
Store sealed containers in a cool, dry, ventilated area away from heat, sparks, and direct sunlight. Follow the current SDS for PPE, ventilation, fire prevention, and waste disposal.
What should be checked before applying Epoxy Zinc-rich Primer (2K)?
Confirm substrate cleanliness, surface profile, dew point, ambient temperature, humidity, and compatibility with the primer or topcoat in the coating system.
How should Epoxy Zinc-rich Primer (2K) be mixed and applied?
Stir thoroughly before use. For multi-component products, mix base and curing agent according to the current TDS, observe induction time and pot life, and only thin with the recommended thinner.
How should unopened Epoxy Zinc-rich Primer (2K) be stored?
Store in sealed original containers in a cool, dry, ventilated place away from heat, sparks, and direct sunlight. Confirm shelf life and packaging with the current TDS/SDS before shipment.
What safety precautions are required during application?
Use suitable PPE, provide ventilation, keep away from ignition sources, and follow the current SDS for handling, fire protection, first aid, and waste disposal.
Product Data Source
This product page is generated from Qilu Paints legacy technical product records. Confirm SDS, TDS, export classification, packaging, and destination-market requirements with the sales and technical team before quotation or shipment.
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