Cannot buff out sanding scratches
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I am attempting to buff out a recently painted job. I initially sanded with 1500 grit and subsequently with 2000 grit. I then used 3M 0594 compound with a 3m 05711 wool pad. After several attempts the sand marks still persist. The compound is several years old and has been exposed to extreme temps. Could age of the compound have an effect on this problem. Do I need to get a more aggresive compound/pad? Do some sanding marks remain after buffing, am I just being too particular.
there is a few things to factor in here.
What colour is it ?
when was it painted (how recently)
what type of paint
does your sander have a fairly soft pad on it
does your sander have a small orbit i.e. 5mm or even better 2.5mm
is this your first ever attempt at colour sanding ?
the age of the compound should not affect it that much as long as you gave it a good shake before use, it may have deteriorated slightly but not to much.
You need to do only small area’s at a time maybe a foot square keep going over it till the compound is completely gone, dont just keep loading on the compound.
Thanks for your reply. The car was painted 4 days ago but I attempted to buff it with in the first 36 hours and had the same problem then. I have tried several different compounds and pads with no success. The color is a Forest Green metallic. The clear I used was manufactured by Kirker and was the first time I had used it. The buffer I use is an eight in circular. I have tried wool and foam pads with the same results. I have been color sanding for years and have not experienced this before. The compound is good, I believe since it has not separated and I have been working on areas no larger than 2′ by 2′. I am beginning to believe that this particular brand of clear is extremely hard and will not allow the scratches to be buffed out. I am seriously considering reclearing the whole car with a clear I am more familiar with. Any suggestions first?
I have used Kirker clears Its good stuff! a little hard to buff yes but it can be done step up the sanding 2000-2500. and even then work a small area at a time and a Sun light would be the way to go! I need one of those! Instead of backing in and out of the garage :blush:
Or you could sand lightly and just do a flow coat :whistle: be careful not to run it or youll be back to More Sanding and Buffing! :exci
Thanks, I think I will apply another coat. Do you think I could us Upol OK since that is what I am used to and since the care is already sanded and buffed with compound, shouldn’ that suffice for resanding.
A1 I would use your transtar your are accustomed to using.. I would also avoid using Kirker clear coats.. I have personally never used them, nor will I ever use them, however I have read on several different occasions that the clears they produce are not good on how they lay out or buff..
Lots of guys use the single stage paints they sell, but then use a good quality clear over them.. Its personal preference but I would stay away from their clear coat line if it were me
Have you tried bringin it way the way down to 3000 with your sanding? that may help, then if its that hard, maybe the ol 3M super duty compound?
totally agree with bk on the kirker clear. i dont think you can get anything more bargain basement than that stuff. i tried it some years back, once was enough for me.
Superduty :blink:
Uh oh where is this going! :rofl
[b]Doright wrote:[/b]
[quote]I have used Kirker clears Its good stuff! a little hard to buff yes but it can be done step up the sanding 2000-2500. and even then work a small area at a time and a Sun light would be the way to go! I need one of those! Instead of backing in and out of the garage :blush:Or you could sand lightly and just do a flow coat :whistle: be careful not to run it or youll be back to More Sanding and Buffing! :exci[/quote]
YIKES!!!!!
I said Kirker and claimed it was good egad! I meant Transtar :blush: :blush:
[b]ryanbrown999 wrote:[/b]
[quote]Superduty :blink:Uh oh where is this going! :rofl[/quote]
Its in a thread talking about some bottom of the line clear that sounds like a costco brand. And your gonna question the old school super duty? Whats wrong with super duty? I use it on all my black rigs fresh outta the booth, with a wool pad. lol. kidding, but it used to work good for getting old gel coat to shine again, and clear blends.Kinda an old joke around here. Not knocking you! 😉
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