Powder Coatings for Agricultural and Construction Machinery

Powder Coatings for Agricultural and Construction Machineryis an ultra-weather-resistant polyester powder coating system combined with a compatible primer layer, specifically developed for agricultural, construction, and heavy engineering machinery. You can rely on this coating series to provide long-term corrosion protection, stable appearance, and reliable edge coverage under harsh outdoor and working environments.

Application

You can use this coating system on machinery and equipment that operate under heavy load, frequent abrasion, and continuous outdoor exposure, including:

• Agricultural machinery frames and housings

• Construction machinery structures and attachments

• Mining and logging machinery components

• Truck bodies and structural components

• Heavy equipment brackets, covers, and protective panels

Application performance is commonly evaluated on steel substrates used in heavy machinery manufacturing. Typical testing may include corrosion resistance, edge coverage performance, UV exposure resistance, and outdoor durability, conducted in accordance with relevant ISO and ASTM test methods under laboratory conditions.

Parameters

Item	Specification
Coating System	Polyester powder coating with compatible primer
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
Typical Substrates	Carbon steel and structural steel
Intended Service Environment	Outdoor and heavy-duty machinery application

Coating Performance:

Item	Instrument	Criteria	Test Standard
Adhesion	Single-edge knife, adhesive tape	Class 0	ISO 2409 / ASTM D3359
Impact Resistance	Impact tester	50 kg·cm (Pass)	ISO 6272 / ASTM D2794
Coating Hardness	Hardness tester	≥1H	ASTM D3363
Bend Resistance	Bend tester	≤2mm	ISO 1519 / ASTM D1737
Salt Spray Resistance	NSS salt spray chamber	≥1500h, Rating 10, No blistering, Creepage ≤2mm	ISO 7253 / ASTM B117
Damp Heat Resistance	Constant temperature & humidity chamber	≥960h, Slight discoloration allowed, No blistering, rusting, peeling	ISO 6270
Weatherability	Artificial weathering (QUV-B313)	≥2000h, ΔE ≤5, Gloss retention ≥50%	ISO 11341 / ASTM G154
Oil Resistance	L-E10# oil	Immersion 24h, No surface change	ISO 2812-1
Gasoline Resistance	120# solvent gasoline	Immersion 4h, No surface change	ISO 2812-1
Stone Chip Resistance	Stone chip tester	≤3	SAE J400 / ISO 20567-1
Water Resistance	Distilled water	20 cycles, Surface coarsening allowed, No blistering	ISO 2812-2 / ASTM D870

Features

• You obtain high corrosion resistance suitable for machinery exposed to moisture, soil, and industrial environments.

• You achieve improved edge and corner coverage, helping reduce coating thinning on complex structures.

• You benefit from excellent outdoor durability and UV resistance, supporting long-term equipment appearance stability.

• You maintain reliable mechanical performance under vibration, impact, and daily operational stress.

• You apply a coating system designed for demanding agricultural and construction machinery working conditions.

Case

We solved a long-term corrosion and edge protection issue for a construction machinery manufacturer.

The customer produced large construction equipment operating in outdoor environments with high humidity and dust exposure. Their previous coating system showed premature corrosion at edges, weld seams, and structural corners, leading to increased maintenance costs.

We recommended Powder Coatings for Agricultural and Construction Machinery and supported the customer in optimizing primer and topcoat film thickness within the recommended range. After implementation, the coated components showed improved edge coverage and more stable corrosion resistance in laboratory salt spray and outdoor exposure evaluations conducted according to international testing practices. This helped extend maintenance intervals and improved overall equipment durability.

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