配方类型:

COATINGS

配方说明:

配方组成:

methyl isobutyl ketone (20%)
cellulose acetate butyrate (10%)/3.0
ethylene glycol monoethyl ether acetate (20%)
titanium dioxide/109.0
xylene (60%)
solution properties:
potlife:
zinc octoate (10%)/3.0
initial visc. (DIN cyp #4): 21
visc. at 8 h (DIN cup #4): 28
P/B ratio: 0.8/1.0
polyester/isocyanate ratio: 1.0-0.39
aliphatic isocyanate (75% NVM)/52.5
polyester resin (70% NVM)/143.0
polyurethane
solvent blend: 30-50

配制方法:

the pigment is mixed with half its weight resin and sufficient solvent to obtain grinding viscosity. this paste is ground overnight to a hegman fineness of 7 in a ball mill. the remaining ingredietns are then added. the enamels are reduced to 100-120 s #4 DIN cup for drawdown application and 20 s for potlife determination.