中文简体
EnglishChemical Resistant Epoxy Powder Coating
Industrial-grade protective coating solutions: environmentally friendly, durable, and cost-effective.
Intro to Chemical Resistant Epoxy Powder Coating
Chemical Resistant Epoxy Powder Coatings are designed to withstand exposure to aggressive media, including strong acids, alkalis, solvents, and industrial cleaning agents. Utilizing a highly cross-linked epoxy chemistry, these coatings form an extremely dense and impermeable barrier that minimizes the rate of chemical penetration and attack on the substrate. This specialized formulation is primarily intended for industrial and confined interior environments where spills, chemical vapors, or frequent harsh cleaning protocols are common. They are highly valued for their exceptional film integrity and adhesion under chemically stressing conditions, providing a critical protective layer for process equipment and containment systems.
High Barrier Properties and Solvent Resistance
The superior resistance of this epoxy system is achieved through a higher degree of cross-linking and the selection of specific hardeners that maximize chemical inertness. Unlike standard epoxies, the Chemical Resistant grade is rigorously tested against exposure to substances like methyl ethyl ketone (MEK), xylene, hydraulic fluids, and various concentrations of sulfuric or hydrochloric acid. The key performance metric is the ability of the cured film to resist softening, blistering, or adhesion loss after prolonged immersion or exposure to chemical splash. These coatings exhibit low water permeability and maintain their physical properties (hardness, adhesion) even when subjected to thermal cycling in the presence of chemicals. Because the primary focus is on functional chemical protection, they are typically used in indoor spaces or as a specialized primer layer, as the inherent UV instability of epoxy remains a factor for exterior use. Proper pre-treatment is paramount; any compromise in surface preparation can create localized pathways for chemical ingress, leading to coating failure.
Specifications
| Property | Performance Rating (ASTM D5402) |
| Chemical Base | High-Performance Epoxy |
| MEK Double Rubs | ≥100 cycles (Typically >200) |
| Acid Spot Test (e.g., 10% H2SO4) | No effect after 24 hours |
| Alkali Resistance (e.g., 10% NaOH) | No effect after 24 hours |
| Adhesion (Wet) | 5B (Maintained after water immersion) |
| Hardness (Pencil) | 2H - 3H (Highly durable) |
| Film Integrity | No blistering, cracking, or softening |
| Recommended Use | Interior / Corrosive Environments |
Application Fields
- Laboratory Furniture and Fume Hoods: Protecting surfaces from chemical spills and reagents.
- Chemical Storage Tanks and Containment: Interior coating of vessels and secondary containment areas.
- Oil and Gas Equipment: Valves, pumps, and components exposed to refined petroleum products.
- Industrial Scrubbers and Process Equipment: Subjected to acidic or alkaline cleaning solutions.
- Battery Housings: Protection against corrosive battery acids and electrolytes.
Key Characteristics
- Superior Chemical Inertness: Unmatched resistance to a wide spectrum of industrial chemicals and solvents.
- High Cross-Link Density: Forms a dense barrier, offering maximum protection against permeation.
- Excellent Adhesion under Stress: Maintains bond integrity even when exposed to chemicals or high humidity.
- High Surface Hardness: Resists physical damage, which could otherwise expose the substrate to chemical attack.
- Process Equipment Longevity: Extends the service life of expensive industrial machinery in harsh environments.
Comparison: Chem Resistant Epoxy vs. Standard Epoxy
| Feature | Chemical Resistant Epoxy | Standard Industrial Epoxy |
| Solvent Resistance (MEK) | Excellent (≥100 rubs) | Good (<100 rubs) |
| Resistance to Strong Acids | Very Good | Fair to Good |
| Raw Material Cost | Higher (Specialized resins/hardeners) | Lower |
| Cross-Link Density | Higher | Standard |
| Primary Use Focus | Protection from chemical attack | General corrosion and abrasion |
Why choose us
Customization: We have a strong R&D team,and we can develop and produce products according to different requirement of customers.
Cost: We have our own raw material production center.So we can offer the most favourable price and good-quality products directly.
Quality: We have our own testing lab and the most advanced and complete inspection equipment, which can ensure the quality of our products.
Capacity: Our annual production capacity is over 30000 tons, we can meet the needs of different customers with diverse purchase quantity.
Service: We focus on developing high-quality products for top-end markets. Our products are in line with international standards, and are mainly exported to Europe, America, Southeast Asia, South America and other destinations around the world.
Shipment: We are only 200 kilometers away from the Shanghai Port and 230 kilometers to Ningbo port, it is very convenient and efficient to ship goods to any other countries.
Customization
Quality
Capacity
Service
Shipment
Frequently Asked Questions (FAQs)
- Q: Can this coating be used on floors in a chemical processing area?
- A: Yes, these systems can be formulated for floor coating, offering robust spill protection. However, the formulation must be specifically engineered for high abrasion and thickness required for foot and machinery traffic.
- Q: Does the chemical resistance cover all types of solvents and acids?
- A: No single coating resists all chemicals. Performance is specific; rigorous testing against the exact chemicals and concentrations encountered in the application environment is mandatory for material selection.
- Q: What is the recommended pre-treatment for optimal chemical resistance?
- A: For steel, abrasive blasting (Sa 2.5 or better) to achieve a profile is preferred, followed by an epoxy-compatible primer system, as the best chemical defense starts with perfect adhesion.
Selection Guide: Chemical Resistant Epoxy
Use Chemical Resistant Epoxy Powder Coating when:
- The component is constantly or intermittently exposed to solvents, harsh cleaners, acids, or alkalis.
- The application is interior or shielded from direct UV exposure.
- Maximum barrier protection and film integrity are non-negotiable for system longevity.
- The failure of the coating due to chemical attack would result in significant damage or production downtime.
- The required service temperature remains below the thermal limit of the epoxy system.
