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Old 11-01-2007, 05:04 AM
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Don't sand Chromabase

I contacted DuPont's tech department and asked why
they say you can't sand their basecoat, here's their reply.

"We do not recommend our Chromabase be sanded. When you sand the
Chromabase you remove the very fine layer of substance (like a wax) that
is on the surface of the color. Without it the adhesion is very poor."


I don't know about other brand basecoats, but it's best to do
what the mfg says.

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Old 11-01-2007, 11:45 AM
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With the base clear paint I have sprayed over the years, I have been told do not sand the base color for the reason you just mentioned.
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Old 11-01-2007, 12:00 PM
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If you read the Tech sheet, you CAN sand the Chromabase (helpful to remove dirt, etc. if needed). However, you must reapply the base before spraying the clear.

If you don't, trust me, you will see all your sanding scratches. Then you get to paint it again, YEA!!
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Old 11-01-2007, 12:06 PM
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Quote:
Originally Posted by jcclark
I contacted DuPont's tech department and asked why
they say you can't sand their basecoat, here's their reply.

"We do not recommend our Chromabase be sanded. When you sand the
Chromabase you remove the very fine layer of substance (like a wax) that
is on the surface of the color. Without it the adhesion is very poor."


I don't know about other brand basecoats, but it's best to do
what the mfg says.
----------------------------------------------------------------------

So, if we sand the wax off, all we got to do is wax the base before clearing?
You might ask them?
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Old 11-01-2007, 12:22 PM
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Quote:
Originally Posted by jcclark
I contacted DuPont's tech department and asked why
they say you can't sand their basecoat, here's their reply.

"We do not recommend our Chromabase be sanded. When you sand the
Chromabase you remove the very fine layer of substance (like a wax) that
is on the surface of the color. Without it the adhesion is very poor."


I don't know about other brand basecoats, but it's best to do
what the mfg says.

This subject has been "discussed" (some people don't have the ability to discuss) more than anything else on this forum.. If you have a LOT of time for reading thread

Basically it depends on a number of factors. First off, there is a difference between "sanding" and "scuffing" or "nibbing". If you scuff or nib some minor flaw out and re-apply color you will be fine. If you "sand" it flat, you will likely be in for trouble.

Here's a shocker from MARTINSR, I know this is controversal, maybe not "PC" I shouldn't even say it.....ok....here goes......."FOLLOW THE RECOMMENDATIONS OF THE MANUFACTURER" there I said it, I feel so much better now.

Brian
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Old 11-01-2007, 12:42 PM
jcclark's Avatar
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The whole reason I posted this was to clear up exactly what
is confusing everyone.

HE NEVER SAID IT HAD WAX He said "LIKE" a wax" not that it "IS" a wax.

Last edited by jcclark; 11-02-2007 at 05:28 AM.
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