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Guardrail powder/powder coating material

Brief description

Made with saturated polyester resin and curing agent such as TGIC or HAA as the main base material.

Features

Excellent mechanical properties.

Outstanding weather resistance.

Application areas

Suitable for coating of products exposed to outdoor for a long time, including:

  • Communication base stations
  • Mechanical equipment
  • Household appliances
  • Architectural aluminum profiles
  • Traffic facilities
  • Sports stadium facilities
  • Garden facilities, etc.

Product series

Standard weather-resistant and ultra-high weather-resistant products.

Various gloss and color options.

Various surface effects: flat, sand grain, wrinkle, metal effect and mixed color.

Some products have passed Qualicoat Class 1 Certification.

Technical parameters

Powder performance

Specific gravity: 1.1~1.8g/cm³

Mechanical properties

Test itemsTest standardsPerformance indicators
Pencil hardness GB/T6739-1996 >=H
Adhesion GB/T9286-1998 Grade 0
Bending GB6742-86 Φ3mm
Impact GB/T1732-93 50kg.cm
Cupping GB9753-88 >6mm

Corrosion resistance

Test itemsTest standardsPerformance indicators
Salt spray resistance GB/T1771-91 No change in coating after 1000 hours, unilateral corrosion at scratches ≤ 2mm
​Moisture and heat resistance GB/T1740-79 >1000 hours slight loss of gloss, ≤1 level
Light aging test ASTM G154 QUV 0.78w/m² @340nm 500H Gloss retention ≥80%

Note: The above parameters are laboratory data and are for reference only. The actual indicators are related to factors such as customer environment, equipment, materials, pretreatment, and spraying process.

Application conditions

Pretreatment: phosphating, chromating

Coating: Suitable for corona electrostatic spraying, friction electrostatic spraying, electrostatic fluidized bed spraying, etc.

Curing conditions:

200℃@10 minutes

180℃@15 minutes

Can also be designed according to customer needs


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