 Prepping RD sheet metal., ...quick question... |
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| mbseto |
 Jan 25 2017, 01:51 PM
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#1
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Senior Member  Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States  |
The panels from RD have some sort of primer coat on them, I don't think it is a weld-through type. Just wondering what the typical prep process is... Where I need to weld, I've been wheeling the coat off and applying weld-through primer. For the rest of it, it looks like everyone applies an anti-rust coat- are you removing the existing coat and using your own primer, then applying anti-rust, or just primering and anti-rust right over what's there?
Thanks... |
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| amfab |
Jan 25 2017, 02:38 PM
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#2
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Member Group: Members Posts: 401 Joined: 17-May 16 From: Los Angeles Member No.: 20,004 Region Association: None 
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It is not a weld-through coating, they are using Galvanneal steel.
https://www.youtube.com/watch?v=8mKmYt_uwIA They do not specify how to weld it in that video. It is galvanized but it is heated afterwards so the top creates a bit of an alloy so the zinc will not flake. I assume: grind the spots, then weld using a weld-through primer. That is what they seem to do in their videos. I know Lincoln makes some specialty wire for this application that allows direct welding of it but I haven't researched it that much. It may be for some specific industrial welders. If you find anything else out let me know as I have a pile of RD parts I just had delivered. edit: Yeah what Rob said, -Andrew |
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Posts in this topic
mbseto Prepping RD sheet metal. Jan 25 2017, 01:51 PM
BeatNavy I believe the coating is galvanneal. Yeah, you do... Jan 25 2017, 02:30 PM Vacca Rabite In some of thier videos they do specify to remove ... Jan 26 2017, 08:17 AM mbseto Thanks, guys... From the linked threads, outside ... Jan 26 2017, 10:58 AM Mark Henry It's not a coating, it's galvaneal so it... Jan 26 2017, 02:29 PM 914forme Informative PDF on welding galvanized steel
I hav... Jan 26 2017, 05:51 PM
Dion Stephen, thanks for the PDF posting. Very informat... Jan 31 2017, 07:16 PM |
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