D.E.H 84
Phenolic
Dow Chemical
胶连\藕合\固化剂
Crosslinking / Coupling / Curing Agents
环氧树脂
Epoxy Resins
涂层 >> 粉末涂层
Coatings >> Powder Coatings
粉末涂层 >> 建筑/装饰
Powder coating >> Architectural / Decorative
粉末涂层 >> 常规工业
Powder coating >> General industrial
D.E.H.* 84 phenolic hardener is a
solid reaction product of liquid epoxy
resin and bisphenol-A containing a
curing accelerator.
D.E.H. 84 phenolic hardener is
designed for powder coating applications.
It is fully compatible with epoxy
resins and it can be formulated into
decorative or protective coatings.
When formulated into white or pastel
shades, D.E.H. 84 phenolic hardener
based formulations may exhibit a tendency
towards yellowing when subjected
to high baking temperatures or
to over-bake. The medium reactivity of
D.E.H. 84 phenolic hardener can be
reduced by substituting part of the
hardener with D.E.H. 85 phenolic
hardener which contains no curing
accelerator. The accelerator present in
D.E.H. 84 phenolic hardener tends to
promote a catalytic crosslinking of the
epoxy resin during baking. For this
reason, it is suggested that a 5 to 10
% molar excess of epoxy over the
hardener be used when formulating
with D.E.H. 84 phenolic hardener in
order to produce cured coatings with
optimum properties.
Phenolic hardener (solid reaction product of liquid epoxy resin and bisphenol-A containing a curing accelerator). Used for powder coating applications. Offers compatibility with epoxy resins. Suits for decorative or protective coatings.