Russ Huber Posted February 18, 2023 Share Posted February 18, 2023 If you have to PERMANTLY seal/cover switch Rheostat winding there are some goops that cure hard out there now that will exceed 500-degree F. for roughly a $10.00 bill. Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted February 18, 2023 Author Share Posted February 18, 2023 (edited) 2000 degree F. rating adhesive Edited February 18, 2023 by Russ Huber Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted February 18, 2023 Author Share Posted February 18, 2023 Is J-B Weld ExtremeHeat electrically conductive? Will J-B Weld conduct electricity? No. J-B Weld is not considered to be a conductor. It is an insulator. Quote Link to comment Share on other sites More sharing options...
Vic Valencheck Posted February 18, 2023 Share Posted February 18, 2023 Those items should work well on cast iron. Filling cracks and holes before powder coating. Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted February 18, 2023 Author Share Posted February 18, 2023 This one is specifically a super high temp adhesive. I think I spotted it for as little as $16.00. Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted February 18, 2023 Author Share Posted February 18, 2023 2 minutes ago, Vic Valencheck said: Those items should work well on cast iron. Filling cracks and holes before powder coating. I am not sure about that, Vic, The powder is attracted to conductive metal. Quote Link to comment Share on other sites More sharing options...
Vic Valencheck Posted February 18, 2023 Share Posted February 18, 2023 5 minutes ago, Russ Huber said: I am not sure about that, Vic, The powder is attracted to conductive metal. Yes your right but I think it would work if the part were heated first then sprayed. Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted February 18, 2023 Author Share Posted February 18, 2023 13 minutes ago, Vic Valencheck said: Yes your right but I think it would work if the part were heated first then sprayed. I will do some research later. I bet the powder coating industry may have already got that base covered? Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted February 18, 2023 Author Share Posted February 18, 2023 (edited) Regular JB weld epoxy has a temp. rating of roughly 500 degrees. This stuff i posted is probably overkill, but I was thinking of fan base rheostat resistance wire covering. I was researching a cheap high temp. adhesive for repairing an old heater lamp and came across these examples. I thought I would share. Edited February 18, 2023 by Russ Huber 2 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted February 20, 2023 Author Share Posted February 20, 2023 Has anyone ever tested a 3-speed fan base rheostat temperature on the lowest speed setting? If so, how hot does it get? Has anyone ever tested a heater lamp peak temperature? Is so, how hot does it get? I don't have one of them there heat testers. Quote Link to comment Share on other sites More sharing options...
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