Coil coating resin
CJ-672 PE Topcoat Resin
Designed for polyester top coating systems—delivering gloss, flexibility, adhesion, and cost-effective outdoor durability for prepainted metal applications.
What is CJ-672
CJ-672 is a saturated polyester resin developed for PE top coating systems in coil coating applications. It is designed for the weather-exposed outer layer, where surface appearance, gloss, flexibility, and practical outdoor durability are important.
As a PE topcoat resin, CJ-672 is suitable for applications requiring balanced coating performance, including good film fullness, strong adhesion, and stable processing behavior in general outdoor service conditions.
Why CJ-672 Works for PE Topcoat Systems
High gloss for attractive coated surface appearance
Excellent flexibility for forming
friendly topcoat performance
Strong adhesion for reliable coating bonding
Good solvent resistance for practical processing stability
Balanced outdoor durability for cost
effective PE applications
Position in the Coating Structure
CJ-672 is designed for the topcoat layer in a complete coil coating system. In a typical coating structure: Topcoat provides weather resistance, gloss, and visible surface appearance. Primer creates the key bond between the metal substrate and the upper coating layers. Back coat supports reverse-side protection and handling performance. By serving the exposed outer layer, CJ-672 helps provide the practical balance of appearance, flexibility, and outdoor durability expected from PE topcoat systems.
Typical Applications
- Roofing sheets and wall panels
- General outdoor prepainted steel applications
- Home appliance panels
- Metal building materials using PE topcoat systems
- Projects requiring 3–5 year practical outdoor durability
PE Topcoat Role in System Design
Selecting a suitable PE topcoat resin helps balance outdoor service life, gloss retention, flexibility, and cost across the full coating system.
When matched with appropriate primer structure, substrate condition, and curing window, CJ-672 supports practical topcoat system design for general outdoor and appliance-related applications.
CJ-672 is suitable for projects that require a combination of attractive appearance, forming adaptability, and cost-effective surface durability in PE coating systems.
Technical highlights
Representative reference ranges appear on product pages or in TDS documents. Summary below — request a full TDS or product sheet from our team.
Appearance
Light yellow transparent liquid
Viscosity (Ford cup, 25°C)
25±3 s
Solid content (Wt)
60±2 %
Acid value
≤10 mgKOH/g
Fineness
≤15 μm
Weather resistance
3–5 years
Performance focus
High gloss and good film fullness
Packaging
200 kg/barrel
Technical data & next steps
Use the links below for matching coatings, selection support, or to request technical documents.