Burn paint?

slickooz

slickooz

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I recently was trying to get these deep scratches off my cousin bumper. I burrowed my friend Dewalt and had it on the highest setting and was putting a lot of pressure on the bumper. When I lifted the buffer, I noticed I peeled some paint because there was about an inch off the bumper. If I did this with the Griot's DA would it also peel paint? Or is the DA really safe?
 
Nothing is safe in the hands of some people...

But yes, you will have a harder time burning paint with a DA.
 
Its posssible to burn paint with a DA but really unlikely. DAs produce alot less heat hence the work time is a little longer than with a rotary.

I would recommend practicing on panels from junk yard to avoid doing any damage to friends cars if your going to work with a rotary.
 
I was lucky it wasn't a brand new car or I would have to drop a lot to fix it. But my cousin was didn't care too much. There tons of touch up paint on his car, he bought it used and it was an old car.
 
ooz, the problem here is the urethane bumper. Plastics have a lower thermal conductivity than metal, which means it's easier to locally build up heat from polishing. This would be especially true with a rotary, but you can do it with a DA with small aggressive pads pretty easily.

Always good to check the temperature of the surface with your hand when you are doing agressive polishing (generally more of a problem when you are applying a lot of pressure as you say you were), and especially on plastic panels (bumpers, air dams, spoilers usually are as well as some side skirts, rockers, cladding, etc.) Rotaries don't need as much pressure as a DA to do the work.
 
slickooz said:
I was lucky it wasn't a brand new car or I would have to drop a lot to fix it. But my cousin was didn't care too much. There tons of touch up paint on his car, he bought it used and it was an old car.
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you can do it but you need to spry h20 on it at the same time you are buffing to keep it cool and slow seed or faster with light pers on it you will get it .also use foam pad only no wool
 
I think with the speed set to max and lots of pressure with a rotary is a recipe for burned paint on about any surface.

Ive just started myself and use a rotary, gotta use a little caution and less speed.

I believe max speed on the Dewalt is 3k rpm and Im pretty sure that there are no pads that recommend that speed
 
Yeah thanks guys. I was just too cocky thinking it wasn't going to burn. Going practice more on my dad beat up car before I go aggressive on any other cars.
 
Which pads should I get for detailing? 3 orange and 3 white from Lake country? Do I need any finishing pads for waxing? Or can I use the white for waxing also?

Or get 2 orange and 3 white and 1 black?
 
I promise I wont touch your car. :laughing:

If you were to order 6 pads package which pads would you get from LC? And color combination?
 
So... you're worried about burning paint because you're new to a rotary and don't want to hurt your friends car? Then you go and practice on your dads car? :nomore:

That's just wrong, haha. Seriously just go get some junk panels from a scrap yard. You can get whole hoods for $15-25 and trunk lids $10-20 typically. I think it would be something good to look into.
 
Oh my dad's minivan is his work car. It all beat up and he doesn't care. The only reason I burned the paint is because my cousin kept saying the scratch is still there. Now I know I can't put much pressure when working near an edge.
 
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