Pure polyester weather-resistant powder coating
Product model
OWP
Product characteristics
Excellent weather resistance and mechanical properties
Product application
Used for surface coating of steel bridges, highway guardrails, courtyard fences, metal building components, solar water heaters, collectors, outdoor transformers, bicycles, cars, agricultural locomotives and other outdoor steel and aluminum components.
Quality index
Standard number：Q/JSQ13-2006
| No. | Item | Index |
|---|---|---|
| 1 | Powder appearance | Powder, uniform color and inorganic impurities |
| 2 | Sieve residue (125μm), % | 0. or negotiable |
| 3 | Coverage (film thickness 60um, flat spray),m²/kg | 7-10 |
| 4 | Film color and appearance | Meet the standard color plate and its color difference range |
| 5 | Flexibility,mm | Flat, ≤2; Semi-gloss, ≤5; Matt, ≤5 |
| 6 | Gloss, unit value | Flat, ≥85; Semi-gloss, 20-40; Matt, ≤10 |
| 7 | Adhesion，grade | ≤1 |
| 8 | Impact resistance, cm | ≥40 |
| 9 | Pencil hardness, H | ≥2 |
| 10 | Moisture and heat resistance (500h), grade | ≤1 |
| 11 | Salt spray resistance (800h), grade | ≤1 |
| 12 | Gloss retention (weather resistance), % | Xenon lamp aging test 500h, ≥70; QUV aging test 240h, ≥60; Guangzhou area natural exposure test one year, ≥70 |
Construction reference
Construction method:
spraying, voltage 50~100kv, air pressure 0.5~1.5kg/cm², spraying distance 150~300mm, paint film thickness 60~80um, curing temperature 180℃/15min or 200℃/10min.
Construction instructions:
The workpiece should be pre-treated before spraying to thoroughly remove surface contaminants. The compressed air should be oil-free and water-free and the oil-water separator should be checked frequently for normal operation. The working chuck should be of appropriate size and cleaned regularly to maintain a good connection with the grounding transmission part. The powder feeder, powder gun and recycling system should be free of pollution and should not be mixed with powder coatings of different manufacturers or models, otherwise it will affect the appearance of the final coating. The temperature in the oven should be uniform, and the temperature difference of each part should not be greater than ±5℃ to reduce color difference. The recycled powder coating must be sieved and then mixed with new powder in the specified proportion. Dust should be avoided in the construction site to avoid affecting the appearance of the coating.
Packaging specifications
20kg/carton
Storage instructions
The product is sealed and stored in a ventilated place at room temperature (<35℃). The storage period is one year from the date of completion of production. Expired products can still be used after passing the inspection.
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