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Old 07-13-2005, 12:37 AM
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Clearing Cured Single Stage

Question about single stage paints. Can Omni MTK single stage be cleared after it has cured for some time - like months? Could I take and scuff it down with say a red scothbrite and clear it, or would that show in the clear? Would SPI universal be a good clear to do this with if it can be done? By the way, the SPI epoxy was awesome. Very nice and user friendly, oh, one other thing about SPI epoxy. I had a rusty black bumper on my 97 Dodge truck. Last year I had some epoxy from my car left over, and I stripped the rusty bumper down and recoated with about 4 coats of SPI epoxy. It came out looking great. It also recieved no other coating for UV protection and has been outside every minute since and went through a Minnesota winter. Looks perfect still. Like I said to other guys who like that semi shiny black hot rod look (blitz black) go with the SPI man. Perfect look with true protection at a low cost, and you can still just paint over in the future with no adhesion worries.

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Old 07-13-2005, 07:06 AM
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I have used clear over almost every type paint except latex house paint and have had great results. As long as proper dry time has passed,it's not been a problem. A light scuffing with a gray pad is all I've done with usually a couple of day's wait between scuff and recoat in case the paint reopens. The red might be a bit harsh and leave some scars. If you have access to 3M's Trizac DA system, their pads are perfect for this. The DA leaves a very nice scuff and is much better than a hand done scuff. These have different grits from 800-3000. The 800 would be great. The 3000 is more for final color sanding clear before buffing.
This is only true with solid colors. If it's a metallic the scuff will scrub the metallic's and ruin the effect.
The only issue with using epoxy as a top coat is that it will chalk up after awhile and look bad but will still have it's protection.Just not a long term type finish.
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Old 07-13-2005, 07:35 AM
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Yep that is right on the money Riverman!!! Glad to hear you like SPI so much, it is great products!!!.. Follow Bee's advice and you should not have any problems
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Old 07-13-2005, 11:13 AM
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Bee,

Thanks for the quick response. I dumb..dumb here am kinda lost at the moment. The color is a PPG MTK 2003 Chev blaze red metallic pearl. It is not what I call the typical type metallic. It has depth and the light color changing effect from dark solid color in the shade to a candy apple red look in the sun with a small metalic look. I do remember the guy who mixed said wow, alot of metallic, but is is hardly noticable until it is in the sun. I love the color, but would lilke more depth. So with that said, does it sound like scuffing that would bring it down to much because of the metallic. I now it is probably hard without seeing it. I might do a test piece, spray it, let it sit for a week, scuff it, clear and buff. Is that to anal, or should I just go ahead and go for it? Would you recommend the SPI clear or MTK clear?

Thanks for the info so far.
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Old 07-13-2005, 11:29 AM
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Since it is a metallic, what you can do is use a Grey scuff pad with a sanding prep.
Such as Presta scuff and stuff or Sem and 3M has one.

This is the same procedure used to blend panels and will not move the metallic or remove any orange peel.
Adhesion will be excellent.
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Old 07-13-2005, 02:01 PM
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3M's prep and blend liquid with a grey scotchbrite, you want to scuff the surface but try not to remove a whole lot of material.
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Old 07-14-2005, 12:06 AM
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Thanks to all. You confirmed what I thought I remembered, just getting old here. I have not been on this board for a year or so, and I remember that people were always asking me about SPI epoxy primer. I loved the stuff from the first time I used it, and nothing else will do for me. I have not sprayed the old DP's for about 10 years, but from what I remember and have seen, I like this stuff better. The way everyone talks about SPI products now is it's own testament of how good it is - wow - never seen that many sold people on a product.
Barry,
Would you recommend one of your clears, and if you do, which one. I am in Minnesota. We averaging mid upper 90's last week or two with high humidity, but normally we are in the upper 80's with moderate to high humidity. Will be painting outside probably AM under a tent roof.
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Old 07-14-2005, 05:39 AM
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I Have Had Great Results With The Hs Clear 3 To 1 Mix With Slow Activator, Man It Is Some Glamour Clear, Mike.
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