Paint is a suspension of colored and insoluble powders in a binder in solution in a mixture of solvents giving, after application, an opaque tinted film that provides a certain degree of gloss. The car paint enhancements have a double role: to ensure after surface treatments, protect the sheets against corrosion, and give the bodywork a pleasant appearance.
For cars, there are three types of paint, which are:
- Cellulose paints
- Air-drying glycerophthalic paints
- Acrylic paints
They dry very quickly by evaporation of solvents.
Special Features Of The Application
The final result will be improved by a roughening with soap and sandpaper 600 before the application of the final layer (or tension veil) consisting of:
- 15% paint
- 85% thinner (viscosity 13 seconds)
- The viscosity is measured in seconds. This is the flow time of 100 cm3 of diluted paint at a temperature of 20 ° C in a calibrated orifice.
Be sure to rinse and dry off before applying the final coat.
The lacquer must be polished and buffed by hand or by machine; the polishing is carried out with an abrasive slurry, the polishing with a degreasing liquid.
With metallic colors, in particular, the entire element must be repainted unless the shape or design of it (moldings, listellos) allows only part of the element to be treated.
A humid atmosphere is unfavorable to spraying cellulose paint: it causes the paint to bleach. This can be remedied by using an anti-fog thinner as suggested by car paint enhancement idaho.
Air-Drying Glycerophthalic Paints
Glycerophthalic paints also called “direct gloss paints,” have made it possible to reduce labor times by eliminating polishing and lustering.
However, their application must be made in a heated dust-free room to reduce drying times.
These paints have excellent filling power and good flexibility. Spraying should be done at room temperature of 20 ° C after adjusting the viscosity.
The optimum hardness of air-drying glycerophthalic paints is only obtained approximately one month after application.
Unlike cellulosic paints and glycerophthalic paints, which dry by evaporation of their solvent, acrylic resins harden by polymerizing acrylic acid esters derived from ethylene.
Compared to other types of paint, they offer several advantages:
- Greater hardness
- Better color stability
- Better gloss retention
- Ease of correcting small surface defects