Powder Coating for Agricultural and Construction Machinery MT-602

Powder Coating for Agricultural and Construction Machinery MT-602is an outdoor polyester powder coating system combined with a zinc-rich primer, specifically designed for agricultural and construction machinery and heavy-duty equipment. You can use this system to achieve long-term corrosion protection, enhanced edge coverage, and stable outdoor durability for machinery operating in harsh and corrosive environments.

Application

You can apply MT-602 to machinery and components that require enhanced corrosion resistance and mechanical protection, including:

• Construction machinery frames and attachments

• Logging and forestry machinery components

• Agricultural machinery structures and housings

• Automotive machinery and special-purpose equipment

• Truck bodies and heavy-duty metal components

Performance verification is conducted on degreased and derusted cold-rolled steel panels commonly used in machinery manufacturing. Testing covers corrosion resistance, impact resistance, stone chip resistance, humidity resistance, fuel resistance, and artificial weathering under internationally recognized standards.

Parameters

Item	Specification
Product Type	Outdoor polyester powder coating + zinc-rich primer system
Curing Schedule	180–200 °C × 10–15 minutes (metal temperature)
Application Method	High-voltage electrostatic spraying
Recommended Voltage	60–80 kV
Recommended Film Thickness	60–150 µm
Standard Test Substrate	0.8 mm degreased and derusted cold-rolled steel
Test Film Thickness	60–80 µm

Coating Performance:

Property	Test Standard	Performance Requirement
Adhesion	ISO 2409	Class 0
Impact Resistance	ISO 6272	50 kg·cm, no failure
Pencil Hardness	ASTM D3363	≥ 1H
Bend Resistance	ISO 1519	≤ 2 mm
Salt Spray Resistance (NSS)	ISO 7253	≥ 1000 h, rating 10, no blistering, creepage ≤ 2 mm
Damp Heat Resistance	ISO 6270	≥ 960 h, slight discoloration only, no blistering, rust, or peeling
Weathering Resistance (QUV-B313)	ISO 11341	≥ 1000 h, ΔE ≤ 5, gloss retention ≥ 50 %
Fuel Resistance	ISO 2812-1	24 h immersion, no surface change
Gasoline Resistance	ISO 2812-1	4 h immersion, no surface change
Stone Chip Resistance	SAE J400	Rating ≤ 3
Water Resistance	ISO 2812-2	20 cycles, no blistering

Features

• You obtain excellent corrosion resistance through the combination of polyester topcoat and zinc-rich primer.

• You benefit from improved edge and corner coverage, reducing corrosion risk at critical areas.

• You achieve reliable stone chip resistance suitable for machinery exposed to gravel and debris.

• You gain stable UV resistance, helping maintain appearance during long-term outdoor exposure.

• You apply a coating system designed for heavy-duty machinery operating under mechanical and environmental stress.

Case

We solved a long-term corrosion protection challenge for an agricultural machinery manufacturer.

The customer needed a coating solution for machinery frames and truck bodies operating in high-humidity and abrasive environments. Their previous coating system showed early corrosion at edges and fasteners, as well as coating damage from stone impact.

We recommended the MT-602 system with a zinc-rich primer to enhance corrosion protection and edge coverage. By optimizing film thickness and curing conditions, the customer achieved improved salt spray resistance, stable adhesion, and better stone chip performance under laboratory evaluation. This helped extend equipment service life and reduce repainting frequency in field use.

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