RAL 9004 Smooth Heavy-Duty Anticorrosive Powder Coating

EP4S-830085 · Signal Black · Epoxy

GLOSS: High Gloss 80–95 GU; Measured at 60°
CURING: 200°C × 10 min; Based on object temperature

PRICE PER KG

1–300 kg: on request
301–1,000 kg: on request
Over 1,000 kg: on request

All prices are EXW. You pay product price + export charges + ocean freight.

MOQ: 100 kg
LEAD TIME: 1-7 days
PAYMENT TERMS: T/T
DELIVERY TERMS: EXW

Product Overview

Description

EP4S is a modified pure epoxy heavy-duty anticorrosive powder coating based on epoxy and modified epoxy resins with suitable curing systems. It is designed for primer or single-coat protection in highly corrosive environments. The product supports 140°C low-temperature curing, fluidized-bed dip coating and repeated high-build coating, and can meet ISO 12944 C4–C5 corrosion-protection categories when used alone or with a polyester topcoat.

Key Features

- Outstanding corrosion resistance; - repeatable multilayer application with good intercoat adhesion; - good edge coverage; C4–C5 corrosion-protection categories when used with a topcoat; - good powder deposition and coverage.

Best Suited For

- Offshore photovoltaic support structures; - Corrosion protection of steel structures; - Transformers; - Anticorrosive primers for outdoor construction machinery, energy-storage cabinets and similar equipment; - Internal and external surfaces of metal pipelines; metal structural components.

Parameter	Value
Chemistry	Epoxy
Surface Effect	smooth high gloss
Color Values	LAB: 27.43, 0.25, -0.53 RGB: 65, 65, 66
Gloss at 60°	80–95 GU
Specific Gravity	1.5–2.3 g/cm³, depending on the final product formulation
Particle Size D50	D₅₀: 30–45 μm; adjustable according to the coating application and product design
Film Thickness	60–500 μm; application method and film thickness shall be agreed according to the application design requirements

Parameter	Value
Curing Conditions	200°C × 10 min (workpiece temperature); low-temperature-curing products down to 140°C can be adjusted
Application Guidelines	Suitable for manual or automatic electrostatic spray application. Other application methods, such as tribostatic spraying or electrostatic fluidized-bed coating, must be specified in advance.

Test	Result	Standard
Initial Adhesion	Pass, GT0	ISO 2409:2020
Impact Resistance	50 kg·cm, no coating detachment under direct impact (except low-gloss products)	GB/T 1732
Hardness	≥H	ISO 15184:2020
Cupping Test	≥5 mm, no obvious cracking	ISO 1520:2006
Single-coat epoxy NSS (1000 h)	C2–C4 corrosion-protection categories	ISO 9227
With Topcoat	C4–C5 corrosion-protection categories	ISO 12944-6
85°C/85% RH Test	1000 h	85°C/85%RH
Durability	Used as a primer with a polyester topcoat, providing outdoor durability of up to 15 years	—

RAL 9004 Smooth Heavy-Duty Anticorrosive Powder Coating

Product Overview

Appearance & Properties

Application & Processing

Performance Test Results

Documents

Available Documents

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