I have an aluminium tissue organ bath they have receave a anodisation process in maner to stop the reaction beteween the aluminium core and the physiologic solution( basicaly oxyneted salt water). The problem is the solution react whit the aluminium bath when the bath is warmed at 37 degree C. I'm looking for a kind of higly non reacting coating, as glass, they can be paint on aluminium. My first idea is enamel painting, but domestic paint looks to cheap for my high purity aplication.