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Old 01-18-2017, 02:59 PM
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EPOXY before mud

Do you do this? I have always just sanded the metal up with Da and 36 grit. but i guess i'm doing it .......or have been doing it wrong, sometime now.Whats the best way i want to get mud on the quarter welds soon. please feel free bob s


ps ~~~~epoxy whats the difference??

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Old 01-18-2017, 04:06 PM
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Quote:
Originally Posted by bsa_bob2 View Post
Do you do this? I have always just sanded the metal up with Da and 36 grit. but i guess i'm doing it .......or have been doing it wrong, sometime now.Whats the best way i want to get mud on the quarter welds soon. please feel free bob s


ps ~~~~epoxy whats the difference??

Bob, you can mud on bare metal just like you always have. The Epoxy first and then mud offers a few advantages though. It provides a moisture barrier since it is less porous than the body filler and inhanced adhesion if done properly. I have been using epoxy first for years and I think most all quality restoration shops do too. I doubt that many production collision shops do though.

John
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Old 01-18-2017, 08:09 PM
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if the car gets blasted it will most likely be in epoxy, if it hasn't been blasted and you strip a panel for mud work, it's on the philosophy of the shop. I've done them both ways. I think filler sticks to bare metal better but epoxy is more dense than filler and water vapors have a harder time penetrating it. As a body tech, it can be quite a pain to be asked to metal work something, sand it for adhesion and be expected to be mudding over epoxy only. This is why it's better to do your metal work before epoxy priming.
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