IM-300 Melamine Urea Formaldehyde Resin complies to the following
SUITABLE FILLER AND HARDENER
Werecommend to use wheat flour filler of about 17-25 part by weight
ofthe resin. For hardener, we recommend IWH-200 hardener, a
specialhardener for use with IM-300 Melamine Urea Formaldehyde
Resin, of about0.3-1.0 parts by weight.
RECOMMENDED MIXING FORMULATION
IM-300 Melamine Urea Formaldehyde Resin will achieve best
performance if it is being formulated with the following
|IM-300 Melamine Urea Formaldehyde Resin||100 parts by weight|
|Industrial grade wheat flour as filler||17-25 parts by weight|
|IMH-200 hardener||0.2-0.4 parts by weight|
|Water||0-4 parts by weight|
Theabove recommended formulation is best mixed through the
- First pour all of the IM-300 Melamine Urea Formaldehyde Resinand
all of the wheat flour while mixing.
- If the viscosity is too high, asmall amount of water can added to
- Finally pour theIMH-200hardener and mix until a homogenous glue mix
of desiredviscosity isobtained.
POT LIFE OF THE RECOMMENDED GLUE MIX
The formulation above will have a pot life varying depending on
environment or room temperature, as follows;
|Gel time / pot life||11 hours||8 hours||5 hours||3 hours|
Preparationmust be done to the veneers to be glued. The veneers
must have asmooth and clean surface, free of dust, glue stains,
etc. Avoid usinghardwoods since IM-300 Melamine Urea Formaldehyde
Resin is applied toplywood that must have a very high standard of
bonding strength.Moisture content of face and back veneers must be
controlled at below12%.
The usage of IM-300Melamine Urea Formaldehyde Resin should employ
double glue line, ofabout 30-32 g/sqft for thinner cores and about
35-40 g/sqft for thickercores.
The normal pressure is 9-10 kg/cm2 and the cold press time is about
15-30 minutes, adjustable according to factory conditions.
PANEL ASSEMBLY TIME
Assemblytime on panels must be as short as possible. If the process
isretarded by factory conditions, the usage of hardeners must
beadjusted, that is to be decreased a little bit.
HOT PRESS TIME
The basic hot press time is calculated by room temperature, which
is as the following;
|Basic time||1.9 minutes||1.8 minutes||1.4 minutes||1.0 minutes|
Additionalpress time is required according to the distance to the
Farthest GlueLine (FGL), as the panel gets thicker, the longer
press time itrequires. The additional time (minutes/mm) is as
|Distance to the FGL||Press plate temperature|
|Below 5 mm||1/2||1.1||1.0||0.9|