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- Contact Person : Ms. Qiang Linda
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Polyester Resin for powder coating
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Polyester resin P7030
Properties:
P7030 is a carboxyl saturated polyester resin, which is used together with epoxy resin (by 70:30) to produce hybrid powder coatings, giving high gloss, good flow effect, wonderful mechanical properties, pretty decorative effects, excellent yellowing resistance and marked durability.
P-7030 is most suitable to manufacture low-gloss or semi-gloss powder coatings.
Specifications:
Appearance: Light yellow & clear flake
Acid value (mgKOH/g): 25 - 35
Softening point (°C): 96 - 120(Ring & Ball Method)
Glass Transition Temperature (°C): 53 – 57
Viscosity (175°C/mPa.s): 3000-6000
Recommended formulation:
Low/Semi-gloss typeIngredients Weight
Polyester resin P7030 (70:30) 200g
Epoxy resin (E-12) 360g
Padding 385g
Matting agent (XG603-1A or B68) 30g
Flow agent 10g
Benzoin 5g
Leveling agent (701B) 10g
Technical condition for making coatings:
Extruder: SLJ-30AF
Clamp set temperature: 100 -120°C
Helix pole temperature: 80°C
Rotational speed: 70rpm
Curing condition: 190°C/15 min or 200°C/10min. (metal temperature)
Coating film properties:
Film thickness: 60±10μm
Gloss (60°C): ≥90% / ≤20%
Bend (mm): ≤6
Impact intensity: ≥50kg·cm
Pencil hardness: ≥1H
Package and Self life:
Packing: 25kgs per bag; 17.5MTS/1X20`FCL with pallet.Storage: Should be stored in a ventilative,dry and clean place under 30°C and valid for one year.Polyester Resin for powder coating
