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CCM – Factors to color matching.
There are 3 basic ingredients to automotive paint.
1) Resin 2) Pigment 3) Solvent
Resin, is the component that holds together the pigment which provides adhesion to the surface applied.
Pigment, comes in a power similar to baking powder.
Solvent,
is what provides transferability to metallic paints today, which
require 4 coats to achieve covering and layout of the metallic.
The
challenge is applying first and second coats medium wet to achieve
coverage and a good bond to the surface. The third coat is applied
medium wet followed with the fourth mist coat until the metallic is
even.
The
same process is used with basecoats, then we use clear coat (urethane)
as the final top coat which provides the deep gloss we want.
So what affects the color match?
PPG
auto paints are made up of a combination of pigment colors, metallic
and pearls. The first challenge is the factory standard. Today the
average paint code has between 3 to 7 paint codes that need formulating.
So why does ESE CCM choose PPG Paints?
German cars today are painted with PPG Paints an industry OE (Original
Equipment). Most other U.S. car manufactures have 3 major paint suppliers
and with these 3 suppliers they are allowed a 5% tolerance of plus or
minus in the paint formulas. So, the first problem is when the east
coast may be getting 5% greener on a blue metallic standard then the
west coast may be getting 5% shade violet on the same blue metallic
standard. Compare them side by side and they will look completely
different. Other reasons include metallic color are now classified in 7
categories. Extra fine, fine, Med., Med. Course, Course and extra
course. The metallic in the paint control the valve lightness and
darkness of the color. Metallic colors will cause variences in color
when applied too. Temperature, paint film thickness, flash time between
coats, fluid tip size, speed of spray gun, surface type plastics,
metals and humidity will all cause the color to change lighter to
darker.
So what happens to a color after several years of sunshine?
Most
people may think the color does not change, but the color does change,
proof if you own a car at least 3 years old and has been out in the sun
most of the time, remove a pinstripe and you will see the original
color on the car. Sunlight has ultra violet and has absorbed some of
the pigments. Blue metallic colors shift to a greener shade, reds will
turn pinkish or more orange. Other challenges include texture or
(orange peel) this can be accomplished by using proper spray gun,
polishing equipment and years of experience.
So how does experience help?
ESE
CCM has special equipment assigned to each paint station from the best in
the industry line of automotive paint suppliers “DeVILBISS”. ESE CCM
has designated DeVILBISS Clean Air to DeVILBISS HVLP spray guns for
each station from paint guns to clear coat spray guns.
ESE
CCM has years of experience behind their staff of CCM Professionals.
CCM has formulated a special adhesion for basecoats to be applied to
automotive plastics and even glass it is our ESE CCM signature
trademark on all of our automotive components. Experience is also a
major factor with years of CCM painting on 1,000’s of
automotive plastic parts. You can be assured that ESE CCM has earned
the right to named ESE CCM (Custom Color Match) Professionals.
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Copyright © 2003-2010, Euro Styles East LLC., ESE Tuning,
All Rights Reserved.
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