FRJ-425 is a phenol-formaldehyde novolac resin that can be used as an epoxy coreactant in general-purpose applications.
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FRJ-425 is an epoxy coreactant that can be used in a variety of applications. It is based on phenol-formaldehyde novolac resin and is supplied in a flake form.
Form: Solid flakes
Specific gravity: 1.25
Softening point (ball and ring): 112°C–118°C
Free phenol: 2.0%–5.0%
Primary Chemistry:
Phenol-formaldehyde novolac resin
Issues or difficulty hardening epoxy molding compounds
Coatings
Adhesives
Sealants
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