D.E.R 321
Epoxy resin
Dow Chemical
环氧树脂 >> 2,2-双羟基苯基丙烷
Epoxy Resins >> Bisphenol A based
海洋 /防腐/保护 >> 海洋运输
Marine /Anti-Corrosive / Protective >> Marine
海洋 /防腐/保护 >> 重型 (防腐)
Marine /Anti-Corrosive / Protective >> Heavy duty (anti-corrosive)
D.E.R.* 321 liquid epoxy resin is a
reaction product of epichlorohydrin
and bisphenol-A modified with an aromatic
monofunctional reactive diluent.
D.E.R. 321 liquid epoxy resin is an
orthocresyl glycidyl ether diluted standard
bisphenol-A based liquid epoxy
resin, of extremely low viscosity. The
low viscosity is advantageous in compounds
containing large amounts of
filler. D.E.R. 321 has a cure rate similar
to unmodified bisphenol-A based
liquid epoxy resins. The reactive diluent
limits the solvent resistance somewhat.
An improved acid resistance can
be achieved using D.E.R. 321 resin in
place of D.E.R. 331 liquid epoxy
resin. D.E.R. 321 liquid epoxy resin
exhibits a very low tendency to crystallize.
It can be hot or cold cured by
blending with polyamine, polyamide
and modified versions of these.
Elevated temperature cures are necessary
and post-cures required to
develop full end properties if anhydride
or catalytic curing agents are
employed.
Marine & Protective Coatings
Reaction product of epichlorohydrin and bisphenol-A modified with an aromatic monofunctional reactive diluent. Used in marine and protective coatings. Offers low viscosity and a cure rate similar to unmodified bisphenol-A based liquid epoxy resins. Gives a very low tendency to crystallize. Can be hot or cold cured by blending with polyamine, polyamide and modified versions of these.