Industrial Fallout causes Dis-colouration of film and paint.

3M Paint Protection film

3M Paint Protection film

The following relates to all thermoplastic PU (Polyurethane films) and what can affect it’s visibility on white cars.

Will the film yellow over time? The answer is yes and no. Below we explain why.

Although the 3m film we use has UV inhibitors in it, it is natural for all urethane films due to their porous nature to discolour somewhat {because of the reasons explained below}. However, with the proper care and maintenance, any degradation in the clarity of the film should barely be visible.

“Film Yellowing” can happen.

There are certain products and chemicals which can cause Paint Protection Film to yellow. These are as follows: Toluene and Zylene (commonly used in many adhesive removers ) The most concerning element is anything containing Petroleum distillates (paraffin wax).These are often used in car care products.

Now the issue is this. There are two types of petroleum distillates Kerosene (Paraffin) based and Naphtha based. Naphtha based PD's are the deadly ones to film. So how can you tell? Well typically you can’t, in most cases the only labelling requirement is to state Petroleum distillates on the label, not which type. The safe course of action therefore is to avoid ALL of them.



Polyurethane films are by nature porous and therefore need to be sealed with a polymeric sealant. The Dis-colouration is caused by contamination and the main causes can be as you will see below. Neglect, contamination and / or chemical reaction. The biggest cause is Industrial fallout. This will almost always lead to a photochemical interaction.

Fallout is more common than you might think. In fact, if you have a light coloured car, more than likely you have seen fallout after you have washed your car. You know those brown little specs that look like rust.

What is it?
Fallout in most cases is simply rail dust (small air borne metal particles) that get kicked into the air from a vehicles vortex or vehicle brake pads and linings. Other forms of industrial fallout can include just about anything that industry pumps out into the air including pollution and acid rain When it lands on your vehicle it still is dust by definition but if your car is dirty it will stay on the surface until the car is washed. It is now when the fallout adversely affects your vehicle's surface. If the fallout is left on the car with an overnight rain or if a considerable amount of dew takes place; the metal particle begins to rust on top of the painted surface.



The film should therefore be cleaned regularly being sure not to leave bug acids, tar, tree sap and other contaminants on the film surface for any length of time.

Industrial fallout can occur just about anywhere. Here are some suggested areas to be more weary of when parking your pride and joy. Airport parking lots, parking lots adjacent to freeways, mines or railways and shipyards.

The short Answer:

VPS Paint Protection Film can be permanently stained by long term exposure to Petrol, Diesel, Tar and Bug Acids. The film should thus be cleaned and waxed regularly, particularly after long trips at high speeds

1 - Keep the film clean and waxed with non coloured wax polish products ie : Wynns pearl glaze / Turtle Ice wax. DO not use products containing Canuba wax

2 - Dirt, dust, and other air born impurities left on unsealed film will eventually cause the film to become dull (this is not covered under anyone's warranty)



Do not wash vehicle for 3 days after fitting. Thereafter the film must be washed regularly using a good quality automotive shampoo and a soft rag or sponge, and then dried with a chamois. Do not wash using a high pressure hose, as this could cause the film to lift or bubble. Apply a good quality polymeric wax with a soft cloth within 1 week of fitting, and every 3 to 4 months thereafter. Abrasive compounds may not be used when cleaning or polishing. Wax or dirt buildup at the edge of the film may be removed using a soft toothbrush and soapy water. Do not attempt to remove the film yourself. Should the film need to be removed, this should be done by an authorised VPS Fitment centre.

** A Note About Car Washes. If you frequent car washes, it is always recommended that you inform them of the film and they the use brush-less system. Make sure that they don't spray any wheel cleaners or degreasers on the film.


VPS Cleaner

PPF cleaner extracts most of the common environmental pollutants from polyurethane paint protection films, restoring the clear, glossy appearance of the film.

  • Sustainable for all PPF brands.
  • Extracts contaminants.
  • Effectively removes stains.
  • Will not harm PPF film.

Some contaminants and stains cannot be removed once they have penetrated into the film. It is thus essential to clean PPF immediately when contaminants are noticed.

VPS Sealant

PPF sealant strengthens and protects polyurethane paint protection films from common environmental pollutants by forming a protective barrier over the film

  • Sustainable for all PPF brands.
  • Reduces film discolouration.
  • Synthetic polymer formula.
  • Will not harm film.