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:
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Agricultural machinery frames and housings
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Construction machinery structures and attachments
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Mining and logging machinery components
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Truck bodies and structural components
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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
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You obtain high corrosion resistance suitable for machinery exposed to moisture, soil, and industrial environments.
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You achieve improved edge and corner coverage, helping reduce coating thinning on complex structures.
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You benefit from excellent outdoor durability and UV resistance, supporting long-term equipment appearance stability.
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You maintain reliable mechanical performance under vibration, impact, and daily operational stress.
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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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