This resin is a partially Iso-butylated
urea
melamine formaldehyde crosslinking
resin with a medium level of
butylation, a medium methylol
content, a medium
viscosity.
MELCROSS-75
crosslinking agent has been
designed for a very fast cure,
minimum shrinkage, wood furniture
and plywood baking, air drying
aminoalkyd enamels for good
gloss, excellent hardness and
corrosion resistance properties.
Get
a property adventage both urea
and melanine.
Typical
properties
Appearance |
|
Clear,viscous
liquid |
Non-volatile |
Wt.% |
59-63 |
Color,Gardner1963 |
|
Max.
1 |
Viscosity,cone/plate |
cps |
700-1800 |
Specific
gravity |
25∑C |
1.10-1.03 |
Acid
Number,mgKOH/g |
value |
Max.
2 |
Methanol
tolerance |
% |
∧ |
Application
Wood
furniture and plywood baking
enamels. Air
drying amino-alkyd enamels.
Acid
curing lacquer and baking enamels.
**Not
suitable for exterior applications.
Introduction
MELCROSS-75
crosslinking agent has fast
drying properties and
shows low formaldehyde emission
on acid curing wood coating
application. This
resin is a very effective crosslinking
agent for base resins containing
amide, hydroxyl, carboxyl functional
groups, such as alkyd, polyester
or acrylic resins. You
can use this resin for the amount
of 25-35% against base resin
polymer based on resin solids.
MELCROSS-75
resin may not need the addition
of an acid catalyst to the formulation
to obtain effective cure. In
many instances, the acidity
of other formulation components
is sufficient to catalyze the
reaction. If
you use weak organic or inorganic
acids as additionally catalyst
to the formulation, you can
get very effective results.
Acid catalyzed coatings may
be cured as low as 110-125∑C
for 15 minutes.
To control the stability,
you can use primary alcohos,
amins or with cobination
of these for neutralization
and PH adjustment.
MELCROSS-75 resin is
soluble in alcohols, ketones,
esters, aromatic hydrocarbons
and partially in aliphatic hydrocar-
bons, but insoluble in water.
SAFETY
General
Attention must be paid
to the normal precautions for
handling chemicals and to the
measures prescript in the local
health regulations.
The work place must be
well ventilated, skin care measures
should be adapted and safety
google should be worn.
Safety
data sheet
P&ID Co.,LTD shall
provide MSDS associated with
MELCROSS-75
as your request. MSDS of
MELCROSS-75
Storage
If MELCROSS-75 is kept
in tightly closed drums or in
storage tanks in the cool place,
its shelf life is 18 months.
Remark
This information is given
without any warranty or representation.
We do not assume any legal responsibility
for same, nor do we give permission,
inducement, or recommendation
to practice any patented invention
without a license.
It is offerd solely for
our consideration, investigation
and verification.
Before using any product,
read its label. |