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Qinsun Instruments Co.,Ltd

Contact:qinsun

TEL: 13816217984

Email:services@moutainchem.com

Fax:+86-21-6420 0566

Address:No.258 Ban Ting road, Song Jiang district, Shanghai

Powder Coating

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Polyurethane powder coating series

Email:services@moutainchem.com

Specifications:

Product details

Made of hydroxy polyester resin and isocyanate curing agent as the main raw materials.

Features:

–Good adhesion, good mechanical properties

—Full and smooth coating, high hardness

—Excellent weather resistance

—Excellent chemical resistance

Application:

Suitable for decoration and protection of a variety of outdoor products: such as household appliances, architectural aluminum profiles, transportation facilities, garden facilities, etc.

Product series:

—Can be made into a variety of gloss and colorful colors, the specific gloss color is subject to user requirements

Application parameters:

Curing time: 200℃×10–15 minutes

Spraying method: High-voltage electrostatic spraying 60-80 KV

Recommended film thickness: 60-80 um

Performance CategoryPerformance ParameterPossible SpecificationTest Method
Physical PropertiesPencil Hardness1H – 3HASTM D3363
Impact Resistance≥50 kg·cmGB/T 1732
Flexibility≤2mmGB/T 6742
Adhesion0 – 2 gradeISO 2409
Cupping Depth≥6 mm (or ≥7 mm in some cases)GB/T 9753
Gloss LevelAdjustable (matte, semi-gloss, high-gloss)
Particle Size DistributionAverage particle size: 34-45μm; <15μm: <7.5%; >85μm: <0.5%
Chemical PropertiesSalt Spray Resistance≥500 hours, ≥Grade 9GB/T 1771
Humidity Resistance≥1000 hours, slight loss of glossGB/T 1740
Weather Resistance (QUV-B313)≥240h (some products may last longer)GB/T 1865
Chemical Resistance (5% H₂SO₄)240 hours, no change
Chemical Resistance (5% NaOH)168 hours, slight loss of light
Environmental ComplianceRoHS ComplianceFree from arsenic, selenium, lead, hexavalent chromium, mercury, antimony, cadmium, and other heavy non-ferrous metalsRoHS Directive

The above tests all use 0.8mm degreased and rusted cold-rolled steel plates, the coating thickness is 60-80um, and the performance indicators of the coating will vary slightly with the gloss.

This product does not contain arsenic, selenium, lead, hexavalent chromium, mercury, antimony, cadmium, and other heavy metals, and complies with RoHS requirements.

Storage conditions: Store in a dry, ventilated room at around 25°C, avoid direct sunlight. Under this condition, the powder can be stored for 6-12 months. If it exceeds the expiration date, it can be re-tested. If the results meet the requirements, it can still be used.

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