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  1. #1
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    Did my First polishing with porter cable xp 7424 HELP

    So I foam/gun, used chemical guys wax strip wash, iron x and then clayed. Went in my garage to do test (2x2 feet) and this is what i did with results
    I Have a 2019 mercedes AMG A45 and paint is hard

    What I use
    porter cable xp 7424
    Swirl Remover meguiar
    Scratch x 2.0 meguiar
    Chemical guys mf towel
    griots 5" orange foam polishing pad and 5.5" backing pad
    Astro Pneumatic Tool 50SL Sunlight

    1). Used swirl remover (not swirl x but regular swirl remover?) by meguiars and put dot size on each pad and spread it across with 2-3 speed. Then slow pass overlapping with med pressure on 5-6 speed side to side then up and down (total 3x each).

    Did a second run and produced similar result.

    Results probally took 35% of swirls and scratches.

    2). Used scratch x 2.0 did the same sequence of passes and probally removed 70% of the scratches/swirl

    I use the astro light to check swirl marks on the test compare to rest of the car and I like that i'm seeing results but being kind of wanting MORE FINER RESULTS

    Which is why i'm here and need your expert opinions and what to do next?

    Questions
    1). So what can i do to get better results (like up to 90 to 100% swirl/scratch)

    2). What is good percentage of swirl/scratch removal when you guys polish (i don't even know percentage lol but i can get rough idea how much has disappeared etc)

    3) Since I did a total of 3 rounds with (swirl remover and scratch x 2.0), how much clear coat you think got taken off ? polish i used is not very abrasive and slowly seeing results after one another, I'm guessing not much as taken off?

    I'm really itching to wax as that is fun part lol

  2. #2
    Senior Member MarkD51's Avatar
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    Re: Did my First polishing with porter cable xp 7424 HELP

    This might sound a little rude, not meaning it to be, but rather on the funny side, is, "This is a 2019 MB AMG with hard paint, and after 2 attempts with different polishes, you've only removed 35% of swirls and scratches", I have to then ask, "what are you washing the car with, Steel Wool, and Scotch Bright Pads?!" LOL

    I'm no expert on German Paint, but might this car have a Ceramic Clear Coat applied from the factory?

    Might this Meguiars Swirl Remover be #9 in a beige bottle? I'm also not sure how good Scratch-X is, especially with a D/A machine?

    I might suggest looking into using Menzerna (FG400 and 2500), or Wolfgang Polishes-Compounds (Uber and TSR). And the use of Lake Country Flat Thinpro Pads.

  3. #3
    Senior Member vobro's Avatar
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    Re: Did my First polishing with porter cable xp 7424 HELP

    Same questions and you should look into more modern liquids.

  4. #4
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    Re: Did my First polishing with porter cable xp 7424 HELP

    lol not rude at all. But 35% removed with swirl remover from meguiar and about 70% removed with scratch x 2.0. I know scratch x 2.0 is more abrasive so probally why 70% removed. Looking to see if i can get more removed.

    No ceramic coating not that I know (they want to cut cost i'm sure and not include it lol)

    Thin pro pads. is this so that it will add more pressure to be more abrasive? I got Griot's Garage 10523 5.5" Orange Foam Polishing Pad (Set of 3) and it seemed bit thin but seems there is more thinner ones out there. I'll try ones I have first and if it seems results are hard then I should move onto thin ones. I'll just have to add more pressure (arm day lol)

  5. #5
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    Re: Did my First polishing with porter cable xp 7424 HELP

    I'm trying to use the least abrasive so I don't just take off clearcoat as the swirl marks are being removed . Just need more passes/rounds.

    If i use a more abrasive one like you reccomend Wolfgang Polishes-Compounds or Menzerna (FG400 and 2500) which i'm thinking is more abrasive then scratch x2.0 with just one round (3-4 passes per test spots), I'm guessing time is more saved as well as product correct?

    And clearcoat diminishing is same.

  6. #6
    Senior Member MarkD51's Avatar
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    Re: Did my First polishing with porter cable xp 7424 HELP

    I wanted to follow up and apologize, not so much for funny comments, but because I did not give you enough information, and food for thought. Plus I was hasty in my recommendations.

    But, what I first said does hold some worth. In that using good washing techniques, and good products, and towels, will help lessen such swirling damage and lessen the need of more aggressive correction to the paint and rest of the vehicle. That, and very good protectants, and making sure they are applied when needed if possible.

    In all truth, I cannot, and nobody can accurately say what your vehicle's paint needs as far as polishes, compounds, pads, and their combinations to get the best results.

    I will say though that you have the right basic ideas though, in that you're taking serious considerations about the removal of clear coat, which as is claimed is not much thicker than a postage stamp.

    My best advice is to buy a decent number of products, and also of the various aggressiveness needed sized pads, so that you have an assortment on hand to best address different conditions of paint appearance-quality, and as well possible consideration of other vehicles you or friends-family may own.

    Again, you are correct to wish to seek doing the least amount of work, and use of aggressive products, this is a paramount theme and goal. And as all will say, better to do 75% correction, than go too far, and cause irreversible damage, or grossly shorten the life of any Paint. Well cared for, there's no reason that today's paints cannot last 30-40 years, but there's many factors involved, daily driver, weather conditions, etc.

    Your most important theme and cardinal rule will be the proverbial "Test Spot". Where you will experiment with different combinations of pads and products, first starting with the least aggressive, and testing if these methods and products are producing desirable results.

    Mike Phillips our forum expert and host may be away at the moment, but I hope he chimes in at some point as he is also the master of linking his many great videos to help you personally. Videos where he'll explain how to do the Test Spot, and then be better able to personally judge if these products-methods are working, or to go further and experiment further, with a different polishing product and/or pad?

    Of course experience is often the very best teacher, but we all had to start somewhere. With some good guidance, you will learn, and become proficient if there's a will.

    I might again suggest as far as products, usually many of the very good company's products showcased here, such as many of the Palm Beach Motoring House Brands such as Pinnacle, Wolfgang, Blackfire, McKee's, and many others such as Griots Garage, Meguiars, Optimum, etc, manufacture complete care systems with a full host of various polishes and compounds, from the most aggressive to the most delicate finishing polishes.

    As such, I then might suggest products from the Wolfgang Line, such as products like their Uber Compound, Total Swirl Remover, and Finishing Glaze. These three products with a variety of different pads (lets say the Lake Country Thinpro Pads of various aggressiveness) should be able to handle 95% if not more of most common correction tasks.

    I used this analogy a number of times here, that if the only tool you have is a hammer, everything begins to look like a nail. That without a decent variety of polish and pad products on hand, you'll severely limit your abilities to attain the desired results you wish to achieve. That with a bit of money spent, and experimentation, you'll then learn in time basically what you'll assume you'll likely need to properly perform a correction task on any given vehicle.

    Yes, one unknown quality can be paint hardness. Again, the proverbial test spot must be executed.

    Hope this further helps you.

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  8. #7
    Senior Member Paul A.'s Avatar
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    Re: Did my First polishing with porter cable xp 7424 HELP

    Good post, Mark.

    I'm guessing it's fairly hard paint and I would be upping the aggression a bit with Menzerna 400, Sonax CutMax or Wolfgang Uber Compound.

    Yes, clear coat is thin however even a compound won't sacrifice a significant amount, 'specially on a 2019 model.

    Do a few test spots to dial in a pad/product combo before doing the entire vehicle. 3-5 slow section passes like you're doing sounds good.

    And,, as Mark said, carefully wash and dry to prevent future marring.

    Sent from my motorola one using Autogeekonline mobile app

  9. #8
    Senior Member MarkD51's Avatar
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    Re: Did my First polishing with porter cable xp 7424 HELP

    Quote Originally Posted by Paul A. View Post
    Good post, Mark.

    I'm guessing it's fairly hard paint and I would be upping the aggression a bit with Menzerna 400, Sonax CutMax or Wolfgang Uber Compound.

    Yes, clear coat is thin however even a compound won't sacrifice a significant amount, 'specially on a 2019 model.

    Do a few test spots to dial in a pad/product combo before doing the entire vehicle. 3-5 slow section passes like you're doing sounds good.

    And,, as Mark said, carefully wash and dry to prevent future marring.

    Sent from my motorola one using Autogeekonline mobile app
    Thanks,
    That's why I was initially a bit surprised, a basically new 2019 vehicle, a German Vehicle, which they're all basically known for having hard paint, and such a top tier vehicle such as the AMG A45, which I'm sure left the factory in immaculate condition.

    And as well Mercedes Dealers are generally known for better care of a customer's vehicle, not handing you the "DISO" (Dealer Installed Swirl Option) to their customers.

    Thoughts going further, was it the Swirl-O-Matic Car Washes? Of course the vehicle might look pristine (dependent upon color which was never mentioned) and that swirl finder lights could possibly have you chasing your tail to re-create absolute flawless show car paint.

    If a very dark color, a dark Maroon, Midnight Blue, and especially Black, then I can wholly understand seeing every little flaw.

    The last Black vehicle I owned was a brand new 1994 Lincoln Town Car Signature Series which had ultra soft paint as one downside, and with that car, you could see a fingerprint 15 feet away in the right lighting. Let alone rub marks from washing, or haze-clouding from a LSP that just wasn't coming off right. (The nasty Wally World Blue Liquid Zymol comes to mind, gave all of it away)

    A glaze is one option, but most will say and agree that a Glaze usually only fills and hides swirls, they don't permanently remove them.

    Pictures might help, and like I mentioned earlier, perhaps some better known and trusted Correction Products and Pads on hand could help.

    I have Meg's Scratch-X on hand here, bought some to deal with my father scuffing the side of the Garage Door a couple months back with his 2005 VW Touareg. Much of it was simply paint transfer, but there was some scratching, I used Scratch-X by "hand" using a 3M Trizact Pad first, and got out about 95% of the damage for him, luckily no dents.

    I'm not entirely sure, but I would think Scratch-X is sort of an uncommon product to be used for full vehicle corrections. If I personally was going to choose from the Meguiars line of products, I might be more inclined to try their #105, #101, and #205 Compounds and Polishes from their Mirror Glaze Pro line-up instead.

    As I said earlier, Wolfgang Uber Compound, and Wolfgang Total Swirl Remover in combination with Lake Country's White Thinpro 5.5" Pads would be a very likely place I'd start, with the TSR first, then possibly onto Uber if TSR was proving to be too mild (with the test spot). Then come back to TSR, or their Finishing Glaze to achieve the best in final gloss, again with solely white Pads. If White Pads weren't getting it, then maybe consider their Orange Pads, the next step up in aggression.

    Wolfgang Uber, which doesn't get much talk anymore since it's been out for a good while is a Combo Compound with two different types of abrasives, Super Micro Fine, and Super Micro Diminishing. (SMAT and DAT) technology.

    In that as you use Uber Compound, the larger clusters of abrasives break down into smaller particles, permitting a product that initially starts out working harder for you, more aggressive, removing deeper sleeks and swirls, yet as it's continued to be worked, it breaks down into a finer finishing Polish which gives outstanding results all on its own.

    Of many products I've tried from here over the past 6-7 years, this is one product that I like having on hand always.

    Again, I hope this helps the original poster. Keep your eyes peeled, we're probably going into a time where Autogeek will start having some really great sales with nice discounts and free shipping with low purchase minimums. And if you are in the continental USA, this might be about the best time to buy chemicals and do a correction before the wicked winter cold arrives.

    Wolfgang Uber Compound, car polish, polishing compound

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  11. #9
    Senior Member MarkD51's Avatar
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    Re: Did my First polishing with porter cable xp 7424 HELP

    Admittedly, I'm not a poor man, but not a rich man either. I doubt in my lifetime that I'll ever be able to "Comfortably Afford" a Mercedes Benz, even a decent used one. In my old age I think I'm turning into more of a Kia-Hyundai-Toyota Corrola kind of guy. Gone are the days of Corvettes, Camaros, Trans Ams, T-Birds, expensive Luxury Cars, Bass Boats and Heavy Gas Guzzling Tow Vehicles-SUVs.

    With that said, and probably unlike many members here, I haven't been able to afford and sample every last polishing product, sealant, uber expensive waxes at $50-$200 a jar, nor ultra expensive machines, vacuums, lighting, on and on.

    But I've studied hard here, listened to others, read countless reviews, and came away with a smaller host of fine products, and have kept which that work, and have foregone and culled those that don't. Still, I'd bet I have more products and tools on hand than some professional detailing shops have.

    Plus decades of the immense like of detailing vehicles, and wishing to learn how to make them look their best.

    As for the Palm Beach House Brands sold here, and not available in any stores except for their own, I strongly doubt that you'll find a dud in any of these brands they sell. I never have. They are all exemplary products that can be relied upon and trusted to do exactly what they were designed to do.

    Product lines such as Pinnacle, Wolfgang, Blackfire, McKees, all seem to have every base covered, for inside and outside tasks, pad cleaners, very vast and very complete in all respects.

    As I earlier said, washing and decon are very important steps. The more careful one is, the better the results, and the less damage one will create.

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  13. #10
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    Re: Did my First polishing with porter cable xp 7424 HELP

    Thank you for you thorough input. I was away with lot of work deadlines and didn't even really have time to work on my car etc. All these knowledge i'm obtaining here helps a lot and makes it more enjoyable to work. The car is actually ceritified use with around 6k miles and guess the owner just washed it without really know how to lol. I think he got some suv instead cause it was smaller car for him. But the color is white so harder to see swirls but it's definetly there. As mentioned 75% or so was removed using the porter cable and harder pressure with 5-6 passes total (slow up and down movements). I'll give the wolfgang uber and swirl remover a try and I'm guessing it will produce much better results then the scratch x 2.0 which is already almost gone from using it most of it.

    As mentioned, i have the griots 5" orange foam polishing pad and 5.5" backing pad and wondering what would be the difference between this and the thinpro 5.5? I'm guessing the thinner it is, less muscle i need to put it to be more aggressive.

    Other question is you, you wee focusing on the test spot to be one of the keys. So if I use scratch x 2.0 and swirl remover and removed around 75% of it .. (which i'm ok with it doesn't have to be like 90% as i'll probally polish after another 6 months perhaps, seeing how my washing technique turns out. ) I'm guessing that it didn't remove to much of the clear coat so i can continue using this test spot correct? Or should i got to another one as it will continue to eat away the clear coat if keep testing it regardless of not removing the swirls since we are working with polishes..

    I think i saw mikes link few days back to regarding beginning polish so i'll have to check that as well.

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