High-Performance Polyester Resin for Industrial & Automotive Coatings | UNION

High-Performance Saturated Polyester Resin

Premium Raw Material for Industrial & Automotive Coatings

Engineered to provide maximum durability, exceptional UV stability, and chemical resistance for coil steel coatings, automotive clearcoats, and high-performance industrial paints.

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Key Advantages & Features

Superior Weatherability

Formulated to resist yellowing, gloss reduction, and UV breakdown in severe exterior environments.

High Gloss & Film Hardness

Delivers exceptional clarity, glass-like depth of image (DOI), and long-lasting scratch resistance.

Flexibility & Adhesion

Exhibits superior bonding strength with metal substrates and optimal T-bend capability for coil processing.

Chemical Barrier Protection

Provides strong resistance to acids, alkalis, solvents, industrial pollutants, and salt spray.

Technical Specifications (TDS)

Parameter Typical Value Test Standard
Appearance Clear Transparent liquid Visual Inspection
Solid Content (%) 70% ± 2% ISO 9001
Viscosity (25°C, mPa·s) 3,000 ~ 6,000 ISO 9001
Acid Value (mg KOH/g) ≤ 10 ISO 9001
Hydroxyl Value (mg KOH/g) 83 – 87 ISO 9001

Core Applications

Coil Steel Coating Application

1. Coil Steel Coatings

Serves as a primary resin binder for pre-painted galvanized steel (PPGI) and aluminum coils. Offers optimal flexibility for high-speed continuous line painting, guaranteeing non-cracking performance during subsequent bending and stamping.

Automotive Clearcoat Spraying Application

2. Automotive Clearcoats

Acts as an essential crosslinking component in OEM clearcoats and refinish paint systems. Provides extreme depth, superior resistance to acid rain, bird droppings, and intense sunlight standard in automotive standards.

Industrial Paint Spraying Application

3. General Industrial Coatings

Widely utilized in protective topcoats for agricultural machinery, heavy equipment, structural steelwork, and home appliances requiring robust mechanical durability and chemical resistance.

Packaging, Storage & Shelf Life

  • Packaging Options: Available in 200 kg steel drums, 1,000 kg IBC tote tanks.
  • Storage Requirements: Store in a cool, dry, and well-ventilated warehouse between 5°C and 30°C. Keep container tightly closed away from direct sunlight, open flames, and heat sources.
  • Shelf Life: 12 months from manufacturing date under standard recommended storage conditions.
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