JamieP Posted October 5, 2006 Share Posted October 5, 2006 Can alloy be powder coated? I thought it worked on a magnetic charge and alloy aint magnetic? Quote Link to comment Share on other sites More sharing options...
JustGav Posted October 5, 2006 Share Posted October 5, 2006 Powder coating I understand is done electronically... the item is negatively charged and the when you spray the coating on it gets a postive charge or something along those lines, causing it stick to the item.. That is then baked... I seem to remember that is how it was explained to me. Quote Link to comment Share on other sites More sharing options...
Digsy Posted October 5, 2006 Share Posted October 5, 2006 Aluminium powdercoats very well. Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 5, 2006 Author Share Posted October 5, 2006 Thankyou:) Quote Link to comment Share on other sites More sharing options...
Jezz Posted October 5, 2006 Share Posted October 5, 2006 I wonder what you're powder coating Mr P? Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 5, 2006 Author Share Posted October 5, 2006 Quote Link to comment Share on other sites More sharing options...
colsoop Posted October 5, 2006 Share Posted October 5, 2006 Yes powder coating can be done on alloy. The part that is being coated receives a negative charge and the powder is electrosatically charged, they are attracted to each other. They are then baked in an oven at around 220 c for 20 minutes or so. Intake manifolds and cam covers come up well when coated. Quote Link to comment Share on other sites More sharing options...
ChrisSZ Posted October 5, 2006 Share Posted October 5, 2006 They certainly do :) Quote Link to comment Share on other sites More sharing options...
Sharpie Posted October 5, 2006 Share Posted October 5, 2006 Not good for rims though. Quote Link to comment Share on other sites More sharing options...
LeeT Posted October 5, 2006 Share Posted October 5, 2006 Not good for rims though. Why's that? I've heard of alot of people powdercoating their wheels Quote Link to comment Share on other sites More sharing options...
colsoop Posted October 5, 2006 Share Posted October 5, 2006 Why's that? I've heard of alot of people powdercoating their wheels Apparently it weakens the alloy, although my wheels are powder coated. I don't see how 10 mins or so at 200 c can do this Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 5, 2006 Author Share Posted October 5, 2006 Im having my greddy inlet manifold sand balsted by a place up the rd as stock they look very ruff... as i was leaving i noticed they do powder coating. Now im thinking i might have it done along with a few other bits:) Quote Link to comment Share on other sites More sharing options...
LeeT Posted October 5, 2006 Share Posted October 5, 2006 Apparently it weakens the alloy, although my wheels are powder coated. I don't see how 10 mins or so at 200 c can do this 200 C is nothing, surely this can't weaken alloys Quote Link to comment Share on other sites More sharing options...
colsoop Posted October 5, 2006 Share Posted October 5, 2006 200 C is nothing, surely this can't weaken alloys I don't go along with that theory either just heard it mentioned before. Quote Link to comment Share on other sites More sharing options...
Sharpie Posted October 5, 2006 Share Posted October 5, 2006 Apparently it weakens the alloy, although my wheels are powder coated. I don't see how 10 mins or so at 200 c can do this Just what I have read....weakens the alloy, makes them brittle if cooked at anything over ~150C. I'm sure low cure powders are available these days ? Since rims are load bearing and we don't drive slow.....I'd rather not take the risk. Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 6, 2006 Author Share Posted October 6, 2006 After all that i sand blasted and sprayed it... the bloke that does the powder coating is away for a couple of weeks. Im well happy with how it came out:) Quote Link to comment Share on other sites More sharing options...
Pete Posted October 6, 2006 Share Posted October 6, 2006 Power coating stuff is great. I had a few bits done on the kitcar. Don't need to keep polishing it either! Can chip though Quote Link to comment Share on other sites More sharing options...
Mike M Posted October 6, 2006 Share Posted October 6, 2006 Just what I have read....weakens the alloy, makes them brittle if cooked at anything over ~150C. I wonder what temps wheels can see in hard use then seeing as discs can glow orange. I certainly know I've managed to get the alloys so hot you couldnt touch them. Quote Link to comment Share on other sites More sharing options...
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