Paint Contamination
Your cars paintwork is constantly subject to external influences from the environment in the form of the weather, tree sap or bird droppings to name a few, all of which attack the paint removing any protection that may have been applied in the past and actually eating into the paint causing damage. You also have industrial contamination which can include metal particles from factories or train lines, as well as tar and road salt during the winter months.
So to conduct a deep clean of the exterior and remove contamination a detailer will first use Snow Foam to soften and loosen dirt before a 3 bucket method using various cleaners depending on which area of the vehicle that is being cleaned. The car will then be treated with an Iron Out remover which dissolves contamination that’s embedded in the paint and depending on the level of contamination a separate Tar Remover may also be used. Special automotive clay is used as a final part of the decontamination stage to remove any deeply embedded contamination that has been left behind following the above stages.
Paint Correction
The next major stage is removing paint defects through correction; these can include swirls inflicted through an incorrect washing process, etching where bird droppings or acid rain have eaten into the paint, hologramming caused by an incorrect polishing process and random scratches due to human error.
These are removed using various grades of compound depending on how severe the damage is, compounds contain micro abrasives which remove a very small layer of the vehicles old paint revealing a fresh layer of paint below.
Paint compounds are normally applied via an electric polisher, the most popular of which is a Dual Action Polisher which spins in an orbit that reduces heat build-up and thereby minimizes any potential damage to the paint. Detailers will use a paint thickness gauge, inspection lamps and special masking tape/paper to eliminate the risk of any damage during the paint correction process.