hdi closed asahikasei mf-k60x
type:
blocked aliphatic polyisocyanate based on hexamethylene diisocyanate
features:
# low curing temperature (90’c for base coat application)
# good storage stability
applications:
# one-component applications
# plastic coatings (curing-temp. 90″c for base coat)
# base coat for automotive bumper
typical properties:
appearance |
colorless to slightly yellowish clear liquid |
non-volatile |
60 wt% |
solvent |
xylene / n-butanol=15 / 25 (wt%) |
blocked nco content |
6.5 wt% |
viscosity |
200 mpa .s at 25c |
color value |
<1 (gardner) |
nco equivalent weight |
approx.646 |
flash point |
21.1°c |
compatibility:
mixing ratio of duranatetm mf-k60x with polyols is based on nco/oh equivalentratio of 1/1.
these values provide general information and are not part of the product specifications.
s.s. of film cured by mf-k60x
formulation :
-
polyol : manufactured and sold by akzo
polyester polyol; setal 90173 (oh%=2.27wt%,nv=50wt%)
acrylic polyol; setalux 1184(oh%=2.0wt%,nv=52wt%)
-
blocked polyisocyanate : duranatetm mf-k60x
-
nco j oh = 1.0
bake: 30min.
high curing speed
curing speed of mf-k60x is faster than that of melamine.
storage stability of paint using mf-k60x
1. formulation : polyol : acrylic polyol a801(manufactured and sold by dic ohv = 100 mgkoh/g resin )·blocked polyisocyanate : duranatetm mf-k60x·nco oh = 1.02. storage condition : 40’c under nitrogen3.measurement of viscosity : ford cup #4 at 20°c |



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