Coil coating resin
CJ-565 Back Coat Resin
CJ-565 is a saturated polyester resin for back coat systems, supporting reverse-side adhesion, forming flexibility, epoxy compatibility, foam bonding discussion, and stable processing in coil coating applications.
- Reverse-side adhesion
- Forming flexibility
- Epoxy compatibility
- Foam bonding support
What CJ-565 is built for
CJ-565 is developed for back coat systems that require reliable reverse-side adhesion, forming flexibility, epoxy compatibility, foam bonding discussion, and stable backside coating performance.
Benefits
Reverse
side adhesion — Supports reliable bonding in reverse — side coating systems.
Forming flexibility
Helps the back coat layer maintain integrity during bending and fabrication.
Epoxy compatibility
Works well in epoxy — based back coat systems.
Foam bonding support
Supports technical discussion for PU/PIR foam, rockwool, and sandwich panel applications.
Typical applications
Construction panels
Used on the reverse side of roofing sheets, wall panels, and other prepainted building materials for stable backside performance.
Sandwich panel systems
Suitable for backside coating structures requiring reverse-side adhesion, forming flexibility, foam bonding discussion, and stable backside performance.
- PU/PIR foam panels
- Rockwool panel systems
- Cold storage panels
- Warehouse panels
Appliance metal panels
Provides reliable reverse-side protection for selected appliance metal panel applications.
Technical highlights
Backside adhesion
Supports reliable reverse-side bonding in back coat systems.
Flexibility
Supports forming and fabrication requirements for backside coating systems.
Epoxy compatibility
Works with epoxy resin systems for back coat formulation support.
Foam bonding support
Supports technical discussion for sandwich panel applications.
Solvent resistance
Supports practical solvent resistance for reverse-side coating use.
Processing stability
Supports stable application and backside coating control.
Technical data & next steps
CJ-565 Saturated Polyester Resin
Representative technical data for this grade. Confirm final specifications, processing conditions, foam bonding references, and application guidance in product documents or TDS.
Representative technical dataShowHide
| Item | Representative data | Test method |
|---|---|---|
| Appearance | Transparent liquid, free of mechanical impurities | GB/T 1721-2008 |
| Viscosity (Gieseking tube, 25℃), s | 18–25 | — |
| Solid content % | 60±2 | GB/T 1725-2007 |
| Acid value | ≤10 mgKOH/g | GB/T 2895-2008 |
| Packaging | 200 kg / barrel | — |
The above values are representative product data. Final specifications, processing conditions, foam bonding references, and application guidance should be confirmed through product documents or TDS.
Product Documents Available Upon RequestShowHide
Request product sheets, TDS, SDS/MSDS, COA, internal test summaries, foam bonding reference, or laboratory sample discussion.
| Document | Availability |
|---|---|
| Product Sheet | Request / controlled sharing |
| TDS | Request only |
| SDS / MSDS | Request only |
| COA | Available by batch |
| Internal Test Summary | Upon request |
| Foam Bonding Reference | Technical discussion |
| Laboratory Sample | Small sample for initial evaluation |