|
PRE TREATMENT PLANTS
Pre-treatment is a process in which the surface of
the component to be painted is chemically cleaned
and prepared for the painting operation.
Metallic components, when they come for painting,
are often contaminated by grease, oil, dirt, rust
and scales. Direct painting of such components
without removing these impurities from the surface
will result in not only an inferior finish to begin
with, but will cause deterioration of the painted
surface, as rusting in between the metal and the
paint skin spreads rapidly over large areas.
Metallic components can be freed from impurities
with proper pre-treatment, using degreasing and
derusting solutions, coated with a protective layer
of phosphates and passivated for lasting effects.
This forms not only an even layer of rust inhibiting
coat on the surface but provides a good foundation
for the paint to adhere to the metal surface, giving
rise to conditions for forming a strong, durable and
good looking paint film.
|
