Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
Can you call the supplier again and ask their opinion? I like to go direct to the source for things like this. Personally, I do not paint them. Bare metal, especially aluminum, is an excellent heat conductor. You will not find any oil cooling radiators on industrial equipment, hydraulic power...