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Epoxy Anti-Corrosion Dual-Resistance Powder Coating for Coal Mines

MOQ 100KG, From China, B2B only WhatsApp
Brand STD
OEM OEM Services Provided
Advantage Professional, Fast Delivery, Customizable
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Surface Finish Options Overview

Product Introduction:

This product is formulated using phenolic epoxy resin and incorporates modified conductive polymers and conductive materials, combining the advantages of intrinsic and doped conductivity. It is specifically designed for conductive heavy-duty anti-corrosion powder coatings. The surface resistivity of the coating can reach below 10⁵ Ω, effectively eliminating static electricity accumulation in gas drainage pipes and preventing static sparks, thereby enhancing safety. The coating features high reactivity, strong adhesion, high cross-link density, and excellent resistance to chemicals, solvents, cathodic disbondment, as well as superior flexibility and impact resistance.

Product Usage:

Special anti-static and anti-corrosion coating for gas ventilation and drainage pipes in coal mines.

Product Features:

  1. Excellent adhesion to the substrate.
  2. First application of a new material combining intrinsic and doped conductivity.
  3. Good conductivity of the coating, with surface resistivity reaching 10⁵ Ω, effectively eliminating surface charge accumulation.
  4. Superior high-temperature cathodic disbondment resistance.
  5. Low melting temperature, high reactivity, high curing completion rate, and good mechanical properties.
  6. Contains composite flame retardants, providing certain flame-retardant effects.

Powder Performance:

Property Specification Notes
Adhesion Excellent  
Conductivity Surface resistivity below 10⁵ Ω  
Cathodic Disbondment Resistance Superior at high temperatures  
Flexibility Extremely strong, passes 4/5 flattening and post-grooving tests  
Temperature Resistance Good performance in high and low temperatures  
Flame Retardancy Contains composite flame retardants  

Curing Conditions:

Property Specification Notes
Temperature Referenced to workpiece temperature Deviations may affect performance
Heating Method Medium-frequency heating or other heating methods  

Application Parameters:

Parameter Specification Notes
Applicable Equipment Frictional charging spray, corona electrostatic spray, dip coating, roll coating  
Film Thickness 250-450um Adjustable according to workpiece requirements

Health and Safety:

Property Specification Notes
Toxicity Non-toxic  
Flammability Non-flammable  
Regulation GB15607-1995 Coating operation safety regulations

Precautions:

Item Specification Notes
Outdoor Use Not recommended May cause fading and chalking
Surface Preparation Oil-free, water-free, surface treatment to Sa21/2 level (GB/T8923), anchor pattern depth 40-100um, clean surface from dust and abrasives  
Preheating Temperature controlled between 180-250°C, not exceeding 250°C  
Storage Ventilated, dry, below 30°C, away from heat sources, corrosive chemicals, and solvents, avoid strong light, maximum stack height 5 layers, avoid long-term pressure, keep packaging sealed  
Curing Temperature Preheat steel pipe surface to above 200°C for better curing completion rate  

Compliance Standards:

MT 181-88 “Safety Performance Testing Specifications for Plastic Pipes Used in Coal Mines”

Types of powder coating

Powder coatings can be categorized by resin system (epoxy, polyester, hybrid, polyurethane), appearance (smooth, texture, hammer, metallic, pearlescent), or performance level (anti-corrosion, heat-resistant, UV-resistant, architectural grade, automotive grade).

Powder coating colours and effects

Powder coatings offer thousands of colors in gloss, matte, satin, metallic, candy, texture, wrinkle, hammer tone, wood grain, fluorescent, and other custom effects. Special powders can create soft-touch, anti-scratch, anti-fingerprint, or anti-graffiti surfaces.

Powder coating process

The process generally includes surface pretreatment (degreasing, phosphating, chromating, sandblasting), drying, electrostatic spraying, curing in an oven, and cooling. A well-controlled pretreatment and curing process ensures strong adhesion and long service life.

Powder coating benefits

Powder coatings are environmentally friendly, solvent-free, and produce minimal waste. They offer excellent corrosion resistance, weather durability, mechanical strength, and uniform film appearance. The coating is tough, impact-resistant, scratch-resistant, and has a long lifespan.

Applications for Powder Coatings

Powder coatings are widely used in appliances, aluminum profiles, architectural components, automotive parts, bicycles, furniture, outdoor equipment, machinery, electrical cabinets, pipeline systems, and general industrial and consumer goods.

FAQ

What is Powder Coating?

Powder coating is a dry finishing technology where finely ground powder is electrostatically sprayed onto a metal or non-metal surface and then cured at high temperature. After curing, the powder melts into a continuous, durable, and decorative coating layer.

What does powder coating do?

Powder coating protects the substrate from corrosion, weathering, chemical attack, and mechanical wear. It also provides decorative appearance with rich colors, gloss levels, textures, and special effects.

Is powder coating better than paint?

In many industrial applications, powder coating outperforms liquid paint. It forms a thicker and tougher coating, resists corrosion and chemicals better, and does not contain VOCs. It also provides excellent consistency and cost-effective mass production.

Why is it called powder coating?

It is called powder coating because the coating material is a solid powder instead of a liquid paint. The coating is formed by melting and curing powder particles under heat.

What are the different types of powder coating?

Powder coatings include several families depending on resin chemistry:

• Epoxy powders

• Polyester powders

• Epoxy-polyester hybrid powders

• Polyurethane powders

• Acrylic powders

• Fluorocarbon (PVDF) powders

Each type has its own performance features such as corrosion resistance, UV resistance, chemical resistance, outdoor durability, or decorative properties.

Which material is used in powder coating?

Powder coatings are based on thermoset or thermoplastic resins combined with pigments, curing agents, fillers, additives, and in some cases metallic or effect particles. Common substrates include steel, aluminum, galvanized metal, MDF, and certain heat-resistant plastics.

How long will powder coating last?

The lifespan depends on powder type, film thickness, application method, pretreatment, and service environment. Indoor coatings can last more than 10–20 years. High-grade outdoor polyester or fluorocarbon powders can last 15–25 years or longer under UV exposure.

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