EE pure epoxy powder coating
We are a manufacturer based in China, specializing in high-quality EE pure epoxy powder coating for industrial clients worldwide. Technical support and custom formulation available.
Category：powder Coating | Brand：MT
Introduction
EE pure epoxy powder coating is built on epoxy resin for chemical resistance, mechanical strength and electrical insulation. It is the standard choice for indoor and buried metal parts where corrosion protection matters more than UV exposure, and is commonly used as a primer or single-coat barrier.
Where It Works
Corrosion BarrierDense film on steel requiring high corrosion protection and moisture resistance.Electrical InsulationGood dielectric film for electrical and electronic metal parts.Indoor & Buried UseShelves, cabinets, pipes, fittings and equipment interiors.
How Epoxy Powder Coating Works
The powder is a dry blend of epoxy resin and a curing agent, stable at room temperature in storage. When the sprayed film reaches cure temperature, it melts, flows out over the pretreated metal and then cross-links into a thermoset network. That irreversible cross-linking is what gives the film its dense barrier, strong adhesion, chemical resistance and good electrical insulation — and also why it cannot be re-melted after cure.
Its barrier performance comes from low moisture permeability and strong bonding to a clean, conversion-coated steel surface. This is why epoxy is the default choice when the main job is corrosion protection, rather than long-term exterior appearance.
Typical Parts
| Steel pipes, fittings and flanges | Valves and pump parts |
| Electrical busbars and enclosures | Storage racks and shelving |
| Tool cabinets and machine bases | Inner surfaces of appliances |
| Bolts, fasteners and hardware | Primer coat under exterior topcoats |
Typical Coating Performance
| Property | Test Method | Typical Result |
|---|---|---|
| Theoretical coverage | At 70 µm film | 8–12 m²/kg (100% powder use) |
| Adhesion | GB/T 9286 | Grade 0 |
| Impact | GB/T 1732 | 50 cm |
| Cupping | GB/T 9753 | ≥ 6 mm |
| Bending | GB/T 6742 | ≤ 3 mm |
| Pencil hardness | GB/T 6739 | ≥ H |
| Salt spray | GB/T 1771 | 1000 h passed |
| Moisture / heat resistance | GB/T 1740 | 1000 h passed |
Application Guide
PretreatmentTreat according to substrate and required performance; good cleaning and conversion coating is the basis for adhesion and salt-spray life.Spray & filmElectrostatic or tribo gun; target film 60–70 µm for balanced coverage and economy.
Cure by workpiece140–200°C for about 15 minutes at workpiece temperature, depending on product and part mass. Confirm on actual parts before mass production.StorageKeep below 25°C, dry, sealed; intact packaging gives about 6 months shelf life. 15 kg carton, double PE liner.
Health, Safety & Dust Control
The cured film is non-toxic, but the powder itself is a dust. Wear a suitable dust mask and safety glasses while spraying, and avoid prolonged skin contact; wash with soap and water if contact occurs. Keep work areas clean of accumulated dust — fine organic powder can present a dust explosion risk under static, so booths, guns and all equipment must be properly grounded.
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