Oil, grease and
other fluids that leak from vehicles onto the road, along with road grit and
melted road tar and lane marking paint accumulate on roads and highways over
time. When it rains this accumulated residue is sprayed onto the paint surface
using water as a carrier system as oil and water do not mix. The highest
concentration of road traffic film accumulates on your wheels, tyres and lower
body panels.
When
rain and surface water washes away all the water soluble components of traffic
film contaminants, what remains are just the non-water soluble parts on the
vehicle’s paintwork. Ultra violet (UV) radiation adheres and then cures these contaminants
onto the surface. Most of the particulates are either metallic, or contain a
metallic element and bear a positive electrical charge. Conversely, the
exterior of most vehicles are negatively charged. Hence, these traffic film
contaminants have a strong magnetic attraction to each other
Washing your car
will remove most accumulated soiling, but normal car washing won't remove road
traffic film (RTF). Auto paint is porous and this film will permeate and cause
the paint to become opaque, dulling the colour.
Correction - the best way to remove RTF is by using a chemical paint
cleaner, something slightly alkaline or a d-limonene solvent / detergent (P21S® Paintwork
Cleanse) or for more stubborn staining Swissvax
Cleaner Fluid Strong, which will remove any road
film that normal car washing could not
Note:
Be cognizant that some Traffic
Film Remover products are meant for heavy commercial / construction type
vehicle and are highly alkaline.
These commercial traffic film removers are usually
used with high pressure washers and are formulated with high concentrations of
hazardous solvents that may help to remove the dirt but can damage the vehicles
paintwork over time
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