|
 |
Blocked isocyanate grades |
For one-pack heat curing. |
|
Grade |
Solids
(wt%) |
NCO
(wt%) |
Viscosity
(mPa・s, 25°C) |
Solvents
contained |
Special
properties |
Curing
(°C) |
MF-K60B |
60 |
6.5 |
220 |
n-Butyl acetate
n-Butyl alcohol |
Low-temp. curing
Storage stability |
90 |
SBN-70D |
70 |
10.1 |
3,000 |
DPM |
Low colonation
Low-temp. curing in thin film thickness |
110 |
MF-B60B |
60 |
8.0 |
250 |
n-Butyl acetate
n-Butyl alcohol |
Low-temp. curing
Low coloration |
120 |
17B-60P |
60 |
9.5 |
500 |
PMA |
Adhesion |
130 |
TPA-B80E |
80 |
12.5 |
1,800 |
Ethyl acetate |
Resin compatibility
Weatherability |
130 |
E402-B80B |
80 |
6.0 |
2,000 |
n-Butyl acetate |
Elasticity |
130 |
|
Coating gel fraction after 30 min baking |
MF-K without catalyst; MF-B, TPA-B and SBN with catalyst
 |
Curing windows, with polyol OHV = 100 |
Compared with caprolactum-blocked HDI:
Curing proceeds in regions above respective plotted lines
 |
|
 |
|