Phenolic Resin for Composite Duct Board
Product Description
Our R&D team has developed a special phenolic resin by using modification technology to control the high ortho structure and methylol concentration of the phenolic resin. The resin foams at a certain temperature and can be used for continuous production of metal surface composite phenolic foam panels. superior. The produced foam has the advantages of good dimensional stability, good adhesion, fine foam and low thermal conductivity.
The Main Purpose:The resin can be used to produce metal surface composite phenolic air duct special sheet by continuous molding process.
Technical Indicators
| Appearance |
Viscosity mPa.s( 25°) |
Free phenol （%） |
Free aldehyde |
Moisture (%) |
Solid content (%) |
| Light yellow to light reddish brown liquid | 2500-3500 | <10.0 | <3.0 | <10.0 | ≧78.0 |
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