7 августа, 2015 
Malyar Special high acid value acrylics have been formulated to provide temporary protection for new automobiles between their manufacture and final sale.
Lacquers based on these resins are spray applied to the painted and chromed parts of the car in order to protect the finish from accidental damage prior to sale. Removal of the temporary lacquer is achieved by washing with a special water based alkaline cleaner solution. Ideally, the coatings are biodegradable and environmentally friendly.
Another use for these temporary coatings is in military camouflage applications.
FORMULATION 3-20:
TEMPORARY PROTECTIVE LACQUER FOR AUTOMOTIVE APPLICATIONS
|
High acid value acrylic (50% soln) |
46.0 |
|
Flow agent (e. g. BYK300) |
0.3 |
|
Propylene glycol methyl ether |
15.0 |
|
Xylene |
19.3 |
|
Aromatic hydrocarbon (BP 160-180°C) |
19.4 |
|
Total |
100.0 |
|
Viscosity at 25°C 20-25 secs. No.4 flow cup |
|
This is spray applied to the car to be protected. Removal of the coating is effected using an alkaline wash as follows: |
FORMULATION 3-21: ALKALINE CLEANER
|
Dimethyl ethanolamine |
5.0 |
|
Non ionic surfactant (Texafor F28 ABM Chemicals) |
3.0 |
|
Nitrilo triacetic acid (Nervamid NTA, ABM Chemicals) |
3.0 |
|
Stabilising agent (Ambiteric D40, ABM Chemicals) |
1.0 |
|
Industrial methylated spirits |
44.0 |
|
Water |
44.0 |
|
Total |
100.0 |
Carboxyl containing solution polymers suitable for this application are available from the major TPA suppliers. The same type of resin has also been used to make temporary road marking paints.
Опубликовано в рубрике 