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| how long to wait after priming http://coloradoclassicbroncos.com./viewtopic.php?f=4&t=3763 |
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| Author: | trei75bronco [ Sat Mar 24, 2012 9:55 pm ] |
| Post subject: | how long to wait after priming |
I'm primimg some body parts and its 5star 5403 black primer. The. Can say wet sand in 30 min. I was going to wait for 3 hours cure time? before color coat |
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| Author: | Gunnibronco [ Sun Mar 25, 2012 12:18 am ] |
| Post subject: | Re: how long to wait after priming |
Follow the instructions provided w/the primer. The longer you let it set before sanding, the better. As the primer cures & drys, it shrinks. If you sand it too soon, the primer will continue to dry & shrink after you sand it. If the primer shrinks after wet sanding, the sand scratches (in mud/filler/old paint) under the primer, will be visible in the color coat. Dark & metallic colors are more likely to show sand scratches than light/white colors. Our primer recommended 8 hrs minimum cure time before sanding, but if we had a "special" car we would let it sit a day or two before wet sanding. |
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| Author: | trei75bronco [ Sun Mar 25, 2012 12:42 am ] |
| Post subject: | Re: how long to wait after priming |
The five star 5403 says 30 min before wet sanding |
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| Author: | Gunnibronco [ Sun Mar 25, 2012 7:55 am ] |
| Post subject: | Re: how long to wait after priming |
I'm sure the instructions are good, there are many different types of primer. Each brand/type has its own chemical make up. Wait at least 30 minutes. The longer the better. |
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