FRJ-425 is a phenol-formaldehyde novolak resin that can be used as an epoxy co-reactant in general-purpose applications.
FRJ-425 is an epoxy co-reactant that can be used in a variety of applications. It is based on phenol-formaldehyde novolak resin and is supplied in a flake form.
Physical form: Solid flakes
Specific gravity: 1.25
Softening point (Ball and Ring): 112-118 °C
Free phenol: 2.0-5.0%
Primary Chemistry: Phenol-formaldehyde novolak resin
General-purpose epoxy co-reactant
Supplied in a flake form
Issues or difficulty hardening Epoxy molding compounds
Epoxy general applications
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