各色硝基透明底漆
composition: nitrocellulose, plasticizer, alcohol-soluble organic dye of various colous, organic solvent
characteristic: fast dry, the film is transparent and bright.
projects standards:
|
项 目
projects |
指 标
standards |
|
colour of the paint(varnish), no more than |
4 |
|
appearance and transparency of the paint |
transparent, no obvious mechanical impurity |
|
colour and appearance of the film |
standard, within the scale of the colour difference, the film is smooth |
|
viscosity(paint-4viscometer), s |
30~70 |
|
solid content, % no less than |
10 |
|
drying time，min no less than
drying time surface
hard drying time |
20
60 |
|
hardness no less than |
0.50 |
|
flexibility, mm |
1 |
|
water resistance（dip in for 24h） |
no foaming, no spalling, a little change of colours is permitted. |
|
gasoline resistance( dip in the gb1787-79 rh-75 aviation gasoline for 24h) |
no change |
|
oil resistance( dip in the gb440-77 no.20th aviation lubricating oil for 24h) |
no change |
|
resistance to temperature fluctuation（80±2℃、-40℃各4h） |
the colour of the film will become darker slightly. |
way of paintitng: spraying, brush painting, roller coating
|
