18 | 05 | 2012
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Good vs Bad Polishing

With so many polishing methods out there I thought it would be beneficial to illustrate the difference between a good and bad polishing method. Using a scrap door I have isolated each area in the picture below to show how each step progresses.

 

Good vs Bad Polishing

This is done using the 3M (foam) polishing system. Even though your finish may look alright in a certain light, it will change in the sun or in a showroom if not done completely. Another poor tactic is to bury the swirls with wax as the wax will eventually wear off and your left with the swirl marks again.

1. Perfect it Rubbing Compoud on White (hard) Pad

This is intended as an initial cut and would make a poor choice for a final finish. I am pretty sure that this compound has recently been reformulated. My 3M rep tells me it incorporates a star shaped mineral that makes cutting much quicker. I like this compound, it also works well on a wool pad.

2. Perfect it Rubbing Compound on Black (soft) Pad

Now this in no way should be used to finish in either but has somehow become a very common step in bodyshops. I am not sure how polishers in bodyshops became this way, I would imagine its the quickest way to get it out ther door (just bury it in wax). It is a lazy way to finish and should always be refined further. You can see it still swirls like crazy in the sun and does not carry the kind of gloss our finer finish does.

3. Swirl Mark Remover on a Black (soft) Pad

This is starting to look a bit better. It eliminates most of the holograms caused by the coarser compounds but still leaves a bit of a visible trace on a dark finish. Many people use a glaze in this case but that will just fill the problem like a wax. We can go a bit finer and get that desired high gloss finish.

4. Ultrafina on a Blue Ultrafine Pad

Many people neglect this step especially on light finishes. Someone once put in perspective for me by saying regardless if its a black or white finish your still getting the same result, black just really tells on you. So if your doing a high end polish job regardless of color you should consider running some ultrafina over it to complete your polish job.

 

 

 

Need Supplies? Refinish Network recommends these great products by Eastwood 

Color Sanding & Buffing Video-DVD

Color Sanding & Buffing Video-DVD

Maximize the Shine! You\'ve spent alot of time and money prepping and painting your car. Don\'t ruin the final results with improper color sanding and buffing techniques. This 60 minute DVD shows step-by-step how to eliminate runs and other surface defects along with proper sanding & buffing techniques. The more advanced Series of Paintucation DVD\'s (34186) includes Body Shop Basics, Metal Prep/Rust Repair, Paint Your Car, and Color Sanding/Buffing at a savings.


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Dewalt 1000/3000RPM 7

Dewalt 1000/3000RPM 7"& 9" Buffmaster Polisher

Buff Out Finishes Like A Pro - The DeWalt model DWT-DW849 7"/9" Buffmaster Electronic Polisher offers variable speed from 1000-3000 rpm. Perfect for most grinding and buffing operations. The heat treated gears offer long quiet running. Safety-lock trigger with removable handle adds comfort and convenience Draws 8.0 amps at 120 VAC. The Liquid Ice System ( 12013 ) works well with this buffer.


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Painters Nib File Coarse

Painters Nib File Coarse

This tool, mounted on a wooden block, saves lots of time and labor by letting you dress down hardened high spots. Finish the repair with wet/dry sandpaper.


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