The Fastest Way To Remove Deep Scratches - [RUPES Replies Episode 029]

[@Methodical2]

What speed did you use?

[@vikashm1942]

No doubt I love the thumbnail 😂💪💯

[@RUPES]

Thanks. We had some fun making that one 😂

[@jamestech2724]

any chance you could go further into a discussion of sanding vs. compounding deep scratches? If you talk to enough detailers, you will see it's a 50/50 issue of preferred technique....often hearing some say sanding produces less heat and stress on the paint - while others say if you can't buff it out, why would you put harsh sandpaper on your paint. I've seen it done effectively both ways; but I also love to learn the tiny details that differ one technique from another. Could you do a follow-up? thanks

[@RUPES]

Absolutely - you’ll want to tune in for tomorrow’s video release.

[@jamestech2724]

@@RUPES Great! thank you

[@jaykid007]

Great video! Also please add the thickness gauge under products used in the video. Thanks!

[@RUPES]

Thanks. We don’t endorse any specific brand of paint gauge. There are several quality options available. The particular one in this video is made by Extech.

[@jaykid007]

@@RUPES ok I figured that was the case. Thanks for sharing. Again, awesome video.

[@vikashm1942]

Any information on troubleshoot steps when polisher malfunctions? For instance, my 75e mini polisher stopped running when placed on the surface and starts running automatically when lifted off the surface. This happened quite a few times and then I decided to dismantle and check what was wrong. But I couldn't dismantle much so I just cleaned up little bit on the parts I could dismantle and reassembled it. It runs fine now. But I have no idea what was the problem.

[@RUPES]

Hard to say. Could be carbon brushes need replacement, could be a weak connection at the cord. The repair process varies by region, so if you need assistance send us an email and we can point you in the right direction www.rupes.com/contact-us

[@euricogomes9904]

Thanks for the tip,what about a tutorial video how to restore yelow headlights? ❤rupes

[@RUPES]

Glad you liked the video. A headlight restoration video is on our 'to-do' list, but for now the process outlined here is essentially the same. The only difference is that you'll likely start with something much more aggressive than 3000 grit in most cases (800 or 1000 grit) and then work up from there before buffing out. Apply protection, ideally a coating with UV protection, to prevent the yellow from coming back.

[@tripsingh3642]

Nice video, what speed did you compound on with the wool pad, I have the 12e duetto will be nice to know as i need to wetsand a car very soon.

[@luizimercado9994]

One of the best tools been recommend tool for me as newbie - one of a very best understandable video how to - my question sir - since we have clear the defects got a good result after using compound... do i still need to do polish? or no need? i saw some competitor after getting result still buff with polish using polisher...

[@luizimercado9994]

or we just spray and wipe with a polishing spray instead paste agent polishing?

[@RUPES]

The choice would be dependent on the situation. In many cases the finish after the compounding stage alone will be sufficient to meet the customers expectations. If it is not, then you perform a polishing step. Every situation would be unique.

[@luizimercado9994]

@@RUPES thank you for your reply. Im buying your product soon, im opening carwash shop and detailing probably End June will be operational. Im sure ill be a happy owner and detailerbusing your product. More power and God bless Rupes😊👍

[@lakshman0680]

Very informative channel. Quick question though. If the scratch is too deep (beyond clear but not beyond the paint layer) to wet sand or compound out, would it be possible to improve the panel by simply sanding that spot with 2000 or 3000, spraying on a coat or two of clear coat from a spray can, then wet sanding to remove orange peel and any dust nibs and then finishing off the panel uniformly with the DA coarse or fine as might be required.

[@OQDetailing]

Thanks for the video, could you please put a link to the paint gage tool used in this video?

[@RUPES]

Thanks. That particular gauge is made by Extech

[@OQDetailing]

Thank you!

[@gabronn]

Can you use your sanding discs by hand?

[@RUPES]

You certainly could. The only thing that is different with an abrasive that you'd use by hand or an abrasive that you'd use by machine is the shape. Obviously you'd need to follow the same guidance on hand application using a block with an integrated interface, or add an interface. There are even hand blocks out there that are round like a backing plate to accommodate machine discs by hand.

[@dustin3700]

Video on Prep fluids? What works best and what is safe? I've personally done alot of testing and was vary surprised at how ineffective IPA was from 12% all the way up to 50%.

[@RUPES]

Good suggestion, but probably not one we're going to get into. We're not commercially involved in that part of the market and there is a lot of variability in terms of what does or doesn't work. Isopropyl alcohol and alcohol based prep wipes are only effective on some contaminants. With many products today including durable fillers more aggressive solvents can often be required to remove everything from a surface. There is also the fact that most of these fluids are manufactured/offered by coating companies and they have specific requirements as parts of their systems which we would not be qualified or comfortable making specific statements about. Its a topic best left to those involved in that part of the business specifically - we'll stay in our lane ;)

[@dustin3700]

@@RUPES Good call.

[@b8addict]

Where can I get the foam interface pad? I ended up purchasing just the x cut discs thinking the foam was enough. Tried looking on auto obsessed, eshine, and carzilla and I can’t find it anywhere. Am I not able to use it without the interface? Just using it on flat panels and never getting close to an edge.

[@RUPES]

A foam interface can be purchased any number of places. Check with local auto body/paint supply stores. We recommend an interface be used 100% of the time when sanding topcoat. It takes the human error/variable out of the equation and is insurance against edge-cut, pigtails, and other issues.

[@b8addict]

@@RUPES thank you!! I just checked Amazon and they sell 3M foam interfaces. Picked one up for 3 inch and 5 inch. Super grateful that you posted this video as I assumed the foam on the disc was enough!

[@pamposantoniou8598]

hello with this process its able to use for hedlights restoration?

[@RUPES]

Similar. You would likely start with a much more aggressive grit to cut the yellowing from the lens and you would also need to finish with a UV protectant to prevent it from rapidly degrading again.

[@totalpackagedetailingllc4413]

What are your guys thoughts on using the LHR21 to sand. Is the 21 mm orbit at higher risk for pigtails?

[@RUPES]

Any random orbital tool can be used for sanding, and this includes the 21. The main thing to remember is that orbit dictates the rate of material removal. The sandpaper dictates the depth of the scratch pattern. In keeping with that thinking things will happen VERY fast with the 21, so sand in short bursts and monitor progress because you'll be pulling material at a pretty quick pace.

[@tommartin1223]

What grit was the sandpaper used

[@RUPES]

at exactly 1:30 in the video Nick states "3000 grit x-cut sanding discs"

[@chasesims3561]

Same idea with the LHR15 for large surface area sanding like a hood would be killer.

[@RUPES]

Completely doable. 125mm interface and xcut discs are available and the LHR15 can be used in the same way. The risk of pigtails goes up substantially the larger the area you work, so take appropriate measures to mitigate those.

[@nicksdragon6929]

@@RUPES What are pigtails and how do you correct them? A novice at polishing.

[@RUPES]

Pigtails are a sanding defect. They can be caused by a number of things like clumps of paint on the abrasive, a particle of dirt or debris, or the velcro hooks telegraphing through the abrasive and putting an impression into the paint. They're not scratches, but more indentations. They're called pigtails because they are continuous curly loops, sort of like a pigs tail. If you create them they can be a real challenge to remove because they are often 4-6x the depth of the surrounding sand scratch.

[@tommurphy4450]

@@RUPES Wasn't part of the Duetto's use intended for sanding?

[@RUPES]

Yes... the Duetto at 12mm of orbit is great as a sander or polisher. The challenge in some markets tends to be access to abrasives. 125mm (5”) is not a common size for the automotive aftermarket.

[@samvish6363]

I bought a lhs 15 mark iii and the dial for the speed is free spinning its not staying at any set speed is that how rupes polishers work

[@RUPES]

Sounds like the dial may have broken. Get in touch with us and we’ll make it right. www.RUPES.com/contact-us

[@feynlabncyprushkdetailing5530]

thx !!!!

[@RUPES]

Happy to help

[@the_1iron]

FWIW it may be useful to capture the product details here in comments or below your descriptions for easy access possible purchase them. While i get it the purpose of RR is educational it's a value add service to some v. stop the video write the part # and play on... js 🤷🏻‍♂️

[@RUPES]

Great suggestion - relevant part codes have been added to the description. 👍🏽

[@marioescobar5027]

👍🏼✌🏽☘️