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Projects and Restorations Building a car from scratch, restoring your pride and joy, building a track car, or starting a long term project? This is your place to document it.

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Old 26-01-2017, 08:04 PM   #1
buffdaddy
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Wet sanding pneumatic vs electric

Hi all

Looking to remove some orange peel. Looking at many videos out there everyone uses Air sanders.

Are there any issues sanding using electric DA such as a DAS6? I can't see why there would be??
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Old 26-01-2017, 09:27 PM   #2
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electricity and water mmm what could go wrong
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Old 26-01-2017, 09:47 PM   #3
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Quote:
Originally Posted by Uncle Winnet View Post
electricity and water mmm what could go wrong
What could go wrong ?
https://www.amazon.com/Flex-LW1503-C.../dp/B002OHEB3E
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Old 26-01-2017, 09:47 PM   #4
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The reason I don't use a kettle...

Air because you can "stall" it easier than electric hence you only let the air da supply the pressure not add some by leaning on it. This you don't cut too much in one pass but you do cut evenly.
Plus the air da's I have used are faster opm than electric "about 10000 rpm which is a lot lower than the actual opm { revs per minute and orbits per minute 10000 rpm could be in the region of 40000 opm})

Plus only a complete dick would sand with the same machine he polishes with (dust and fine grit and a finish glaze mmmmmmm nicccccce)

Last edited by AllenF; 26-01-2017 at 09:50 PM.
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Old 26-01-2017, 10:40 PM   #5
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Quote:
Originally Posted by Uncle Winnet View Post
electricity and water mmm what could go wrong
What are you talking about mate, you're not dipping the machine in a bucket of water, just a spritz on the panel
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Old 27-01-2017, 12:12 AM   #6
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Quote:
Originally Posted by AllenF View Post
The reason I don't use a kettle...

Air because you can "stall" it easier than electric hence you only let the air da supply the pressure not add some by leaning on it. This you don't cut too much in one pass but you do cut evenly.
Plus the air da's I have used are faster opm than electric "about 10000 rpm which is a lot lower than the actual opm { revs per minute and orbits per minute 10000 rpm could be in the region of 40000 opm})

Plus only a complete dick would sand with the same machine he polishes with (dust and fine grit and a finish glaze mmmmmmm nicccccce)

Why would rupes bring out the duetto then? Must be complete dicks the lot of them
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Old 27-01-2017, 09:38 AM   #7
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There are no problems using a DA for sanding, but its more about common sense when it comes to the amount of water you use spritz don't soak. Make sure you don't put pressure on the machine just use the weight of the DA, and inspect the panel after each pass and clean the sanding disc regular to avoid pigtails.

Personally for me I prefer to wet sanding by hand, I know its slow but I get a better feel for how the paint is behaving.

You might find this link useful http://www.meguiarsonline.com/forums...iUyUWASQlII.97

If you are planning on doing your car, make sure you practice on some scrap panels and are happy with the results you are achieving before giving it a go on car as things can go wrong pretty fast especially with a machine.

You might want to also think about a paint thickness guage see if you can hire, borrow or buy one this will allow you to know how much you have to play with and how much you are removing.
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Old 27-01-2017, 09:44 AM   #8
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Its less to do with "air vs electric" and more to do with throw and opm. There are electric units out there specifically for refinishing paint and there are air units that will destroy paint.

My advice, the smaller the throw the better, and something that doesn't have a massive counter weight
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Old 27-01-2017, 09:48 AM   #9
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Da's are all derived from Sanders. Rotarys are derived from grinders. The all polished are "capable" of sending but would you use the same machine to do both tasks.
Sending whether wet or dry will spatter done that and abrasive into the working of the machine. Polishing will do the same but the two substances are different
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Old 27-01-2017, 09:49 AM   #10
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Quote:
Originally Posted by stangalang View Post
My advice, the smaller the throw the better, and something that doesn't have a massive counter weight
Festool Rotex is good.

Alan W
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