Ford Sierra RS500 Cosworth Made Show-Ready With Kamikaze Collection Infinity Wax – Part 1

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Ford Sierra Cosworth Paint Correction & Show Detail

The Ford Sierra RS Cosworth – manufactured from the mid-1980’s to the early 1990’s this car was originally designed to boost Ford’s flagging performance in Group A racing in Europe. In collaboration with Cosworth, Ford took elements and inspiration for the design and engineering from a variety of race vehicles and the RS Cosworth subsequently enjoyed a great deal of success. In 1987, the RS Cosworth was homologated and only 500 were produced. As a result, they are largely a rare sight, and those in possession tend to be passionate about them.

This RS500 Cosworth had only recently been acquired by UF’s customer and he booked it into UF Detailing Studio for extensive detailing. Having been lovingly cared for and stored, the car arrived looking very much the part of a cherished classic.

Enthusiasts tend to be enthusiastic about their cars in every sense of the word, so although I knew this RS500 Cosworth had been booked in for a five-day treatment I wasn’t surprised when it turned up looking clean and with the paintwork in better condition than I’ve seen on many brand new cars! That said, the customer’s desire was to get the car absolutely show ready, which is far more in-depth and intensive than a paintwork correction, so I knew I would need the five days to bring it up to standard. – Derek Ginger, Master Detailer, UF Detailing Studio

The first stage was to ensure thorough decontamination of the surfaces. To make the wheel arches easier to clean, each side was jacked up in turn and the wheels removed. This allowed the wheel rims to be cleaned back and front and also facilitated comprehensive cleaning of the wheel arches, the underside of the car and the sills.

Ford Sierra Cosworth Paint Correction & Show Detail

These areas could then be decontaminated, initially using Bilt-Hamber Korrosol Iron Fallout Remover, an iron contamination remover. This acts on ferrous particles, derived from brake pads shredding as the discs are applied. The hot particles bond quickly to whichever substrate they come into contact with, commonly making wheel arches, wheels and sills the most contaminated areas. Left in place, the bonded particles begin to oxidise and as they do so they expand and over time will cause permanent pitting in the substrate. Korrosol acts on the particles to shrink them, forcing them to release their bond without damaging the underlying surface. The chemical reaction produces a colour change function – sprayed onto ferrous particles the product changes colour from a red to deep purple. When no further colour development occurs the solution is ready to be rinsed away, carrying with it the contamination.

Ford Sierra Cosworth Paint Correction & Show Detail

A solution of Meguiar’s All Purpose Cleaner was used to strip road grime and then the areas were treated with Bilt-Hamber Surfex HD to remove any greasy residues. The underside of the car was then pre-cleaned with Ultimate Snow Foam applied using a Kranzle-adapter snow foam lance and a Kranzle 1152 TST pressure washer. The thick foam clings to surfaces and gets into hard to reach areas. As the foam dwells, it lifts larger particles of dirt and grit away from the surface. After a few minutes, the foam can be rinsed away taking contamination with it. Once completed, the wheels were replaced and the bodywork was treated using the same processes. Such non-contact removal safeguards the lacquer from being scratched; the usual result of scrubbing at such contamination with a wash mitt.

Ford Sierra Cosworth Paint Correction & Show Detail

The RS500 Cosworth was carefully washed using the Two Bucket Method and Ulti-Mitt Double Sided Merino Wash Mitt for the bodywork, a separate UF Wheel Bucket with Scratchshield and UF Wheel Woolies. Keen to avoid a shampoo with gloss enhancers, GYEON Q2M Bathe was used to ensure a squeaky clean surface. The car was then rinsed clear of suds before an Aqua Gleam Deionising Water Filter was attached to the hose to give a final, pure water rinse. Using UF Ultra-Soft Microfibre Drying Towels, the car was patted dry and moved into the studio. Here the door trims, badges, grill, under the wheel arches and the underside of the vehicle were dried with an air blower to ensure no water remained trapped in these hard-to-reach areas.

Ford Sierra Cosworth Paint Correction & Show Detail

Ford Sierra Cosworth Paint Correction & Show Detail

Multiple paint depth readings were taken on each panel and the paintwork was inspected under high-intensity lighting for swirls, scratches and other damage.

Ford Sierra Cosworth Paint Correction & Show Detail

The lights revealed very few swirls but there were several random deep scratches (RDS) that were going to take some work to remove. Before starting the paint correction stage, I wanted to know the thickness of the paint layer so I could better judge the machine, pad and product combination. Paint depth readings indicated a respray and, given the good condition of the paintwork compared with the age of the vehicle I wasn’t surprised. – Derek Ginger, UF Detailing Studio

To prepare the car to show standard, the engine and engine bay required cleaning and polishing. Whereas the electrics on modern vehicles tend to be fairly well weather proofed, classic vehicles require more respect! This engine had been heavily modified, so the additional equipment also needed preserving. The individual components were treated by using a 60/40 solution of Meguiars All Purpose Degreaser applied to a microfibre and wiped over each part of the engine and engine bay. The areas were then cleaned in the same manner with Surfex HD to remove degreaser residues.

Ford Sierra Cosworth Paint Correction & Show Detail

Once this stage was complete the engine bay was completely covered with protective detailing sheeting and secured with detailing tape to prevent any ingress of compounding dust during the next stage.

Ford Sierra Cosworth Paint Correction & Show Detail

The bonnet edge, the underside, the lip across the front, the shuts and struts were machine polished using the FLEX PE8-4-Mini Rotary Machine Polisher with the FLEX M14 Double Adaptor Backing Plate Extension and a FLEX Spot Pad. The boot was treated in the same manner. Then attention turned to the bodywork.

Ford Sierra Cosworth Paint Correction & Show Detail

As I started machine polishing I could really gauge just how soft the paint was. I started out using the FLEX PE8-4 Lightweight Mini Rotary Machine Polisher but even on the lowest speed, I wasn’t getting the results I wanted other than on the bonnet. So I first corrected the bonnet using the FLEX and then switched to the RUPES Duetto dual action polisher to reduce heat generation. I made another pass over the bonnet using this combination before moving on to the rest of the car. – Derek Ginger, UF Detailing Studio

Ford Sierra Cosworth Paint Correction & Show Detail

The remainder of the bodywork was corrected using the RUPES BigFoot LHR12 Duetto dual action polisher fitted with a Kamikaze Collection ‘Beast’ Backing Plate for a more intensive cutting action. The combination of a Flexipads DA Microfibre Cutting Disc and Menzerna Heavy Cut Compound 400 (FG400) worked quickly to remove the deeper scratches.

Ford Sierra Cosworth Paint Correction & Show Detail

Ford Sierra Cosworth Paint Correction & Show Detail

Next week’s UF blog will feature the remainder of this extensive show car detail. See how the paintwork was refined, machine polishing the rear light covers, polishing and protecting the wheels and, of course, the final pictures of a truly stunning finish!

UF Detailing Studio – Award Winning Detailing. Call 0333 800 8004 to discuss your requirements and arrange a free vehicle appraisal.

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