A basic (alkaline) catalyst and, usually but not necessarily, a molar excess of formaldehyde is used to make resol resins.
Special phenolic resins in combination with the proper cure catalysts, surfactants and blowing agents produce foam products. Phenolic foam has a unique set of properties such as excellent fire and heat resistance and a low smoke and toxicity rating when burned. Proper surfactants produce closed cell foams with excellent insulating R-values. Other surfactants produce open cell foams demonstrating unique water absorption properties. Typical application fields are:
Resole phenolic resins are widely accepted by the foam industry for their superior consistency, crucial for the challenging production process.
Specification:
Properties | Value | Test standard |
Solid content (%/125C) | 73-76% | GB/T24411-2009 |
Viscosity (cp@25C) | 1000-1200 | GB/T24411-2009 |
Free formaldehyde |
0.5-1.0% | GB/T30773-2014 |
Packing&Storage
the package is 200kg drums
The storage life of this product is 0.5-3 months in a cool and dry place in original closed bags