| Subject: |
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Re: Re: Re: Re: how water proof is primer? |
| Name: |
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Mark D. |
| Date Posted: |
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Dec 1, 06 - 4:34 AM |
| IP Address: |
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204.10.44.254 |
| Email: |
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swptln@hotmail.com |
| Dodge-Link |
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http://www.marksmopars.net |
| Message: |
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When your wet sanding your wiping it down and drying it while you sand and it's not as bad as exposing it to the elements. Trust me if your a wet sander and even if you haven't broke through the primer while wet sanding, moisture has made it's way through all your hard work.
It maybe minimal, but I guaranty if you strip it down you'll find rust spots under all your body work.
Like I said it will be minimal, not as bad as a vehicle that has been sitting out in the weather for long periods of time.
Wet sanding primers is an old school process derived from working with lacquer paint not primer although it's a very common practice with a lot of body men, but it's not recommended by your better body men mostly the reason why is if you bring your car to an average run of the mill shop to have paint and body work done expect it to last around 5-6 yrs. at best...before you start seeing blemishes, bubbles, etc. Real good body men will dry sand and wash with cleaner/solvents, water is your worst enemy when doing body work, except on paint.
Another thing is when wet sanding with water you should be appling a little soap in your water to help keep your paper from clogging and also making the paint surface a little slicker, less absorbant and easier to dry.
I'm sure there will be some different opinions on wet sanding, but just think what moisture does to freshly sandblasted metal and keep in mind lacquer and enamel paints are very pourus vs the all the new urethanes which are virtually completely waterproof.
Mark D. |
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