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Ch18 #19-36
Paint problems/ final detailing
Question | Answer |
---|---|
Wrinkling | severe puckering of the film that appears like the skin of a prune |
Metal dust damage | “rail dust” occurs when metallica particles from industrial fallout settle onto the paint |
Acid rain damage | varies because it is chemical damage from industrial fall out |
Minor acid rain damage | produces shallow craters, dulling, fading and chalking that do not eat fully through the top coat |
Major acid rain damage | severe chemical etching that has eaten completely though the topcoat |
Sand scratches | too coarse scratches left in the paint or body filler |
Final detailing | locate and correct any defect that may cause customer complaints |
Surface paint chips | results from mechanical impact damage to the film |
Surface protrusion | dirt or another particle of paint or other debris sticking out of the film after refinishing |
Dirt nib file | can be used to remove any defect that is on or above the surface |
Finesse sanding | can be used to level the protrusion with the surrounding film |
Rubbing compound | generally contain coarser grit abrasives than polishes |
Hand compound | are oil based to provide lubrication |
Machine compound | water based to disperse the abrasive while using a power buffer |
Edge masking | taping over panel edges and body lines prior to machine buffing or polishing to protect from burn through |
Burn through | when the buffing pad removes too much paint on an edge, lip or body surface |
Polishing | using very fine compound to bring the paint surface up to full gloss |
Orbital action polisher | moves the polishing compound in a random manner to prevent swirl marks left from machine compounding. |