Hi all
![Smiley :)](http://www.primitivearcher.com/smf/Smileys/default/smiley.gif)
, Iv been dabbling in heat treating and up until now it has gone pretty smoothly. I am cooking them in a electric roaster at 450 degrees, I think this last batch was in for 36hrs. I let the whole thing cool on its own. When I opened it up, most of the flint was ok but ALL of the beautiful root beer flint had exploded
![Angry >:(](http://www.primitivearcher.com/smf/Smileys/default/angry.gif)
. How can I keep this from happening?? I spent alot of time and energy collecting that root beer and now its all ruined
![Cry :'(](http://www.primitivearcher.com/smf/Smileys/default/cry.gif)
Any help would be great!
Ryan
P.S. Is anyone going to make it to ozona, tx to join Patrick and myself for the knappin?