MadHatterGraphix 1,258 Posted June 30, 2016 Lately I have been having issues with the aluminum water bottles. Blacks are going brown which I figure over heating I know it's. It the ink I have had success with printing other items with the black I have. I'm going 400 degrees 12 min I know it sounds high so what are you using? I'm using an oven. Share this post Link to post Share on other sites
redfish 1 Posted September 14, 2016 I run mine through a hix oven 390 degrees 4 min, they tend to burn easy as the aluminum is thin and heats quickly. Share this post Link to post Share on other sites