7.2 Cleaning the Car
Clean Object = Clean measurements
Cleaning the area to be measured is essential. Any
surface dirt, grease, scratches or dust already
in the paint WILLinuencethequalityofthe
measurement. The surface must also be dry!
Do NOT measure sprayed panels without allowing
sufcienttimeforthepaneltodry.
Which polish?
Water and soap is good enough to remove the
surface dirt. There are many different polishing
products and the general guidelines are:
• Useanonsiliconpolish.
• Theproductmustnotbeabrasiveandleave
any visual scratches or haze on the top coat.
• Avoidbadlyscratchedareas,Ifyouhaveno
choicethenstartwithacoarsepolishandnish
withanepolishtoachieveasatisfactorynish.
• UsingaTACKRAGcanalsohelptoremove
dust before measuring. Don’t use a tack rag
that has previously been used for a completely
different color.
Polishing motion
Polishing always leaves very small scratches on
the surface. To randomize these „micro“ scratches
a rotating polishing motion is recommended. These
scratches can have an effect on the measurement
Measurement techniques