When we use the term chemical decontamination we are generally referring to the use of a chemical to remove a contaminant from the car. As the name suggests, we are using chemistry rather than mechanical abrasion to remove the contaminant, though, the use of a towel may introduce some mechanical forces. We often choose this method because it minimizing contact with the paint, reducing the chance of scratches and marring. It can also dissolve certain contaminants, making it safer to wipe away.

When undertaking chemical decontamination it's important to identify the type of contaminant and choose the appropriate chemistry to remove it. Most OTC products have done the work for us by labeling there product as a bug remover, tar remover or water spot remover. But a key piece of this is understanding the chemistry at work, because if you have chosen poorly, you might as well have gone straight to a mechanical abrasion. Below are the basic guidelines for choosing a chemical cleaner

Alkaline prodcuts (All Purpose Cleaner) - Organics - soiling, bugs, birdbombs

Acidic Products - Inorganics - Metals, fallout, mineral deposits

Solvent Products - Petrochemicals - Tar, grease, tire dressing sling

It is always best to address any contamination immediately as it will be easier to remove and reduce the risk of damaging the surface. Always try a mild cleaner first, such as a quick detailer, before trying a stronger cleaner

Always follow the manufacturer's directions. Never let these chemicals dry on the surface. If you want to extend the dwell time, apply the product to a towel and place the towel over the affected area, this will help loosen any stubborn deposits