3D-Fuel Annealing Salt Powder™ comes in an 8" x 8" x 2" box with a bag full of salt powder in the box. (About 5 lbs.)
Why Use Salt Powder for Annealing?
During the process of annealing filament printed objects with hangover parts tend to lose their structure and wilt or melt causing destruction of the form and function of the part. This has long been a problem and many have tried to solve the issue.
Laying a part down on its back is one way to do this, but what if you have multiple geometries that still do not lay flat? Some have tried using sand to do the job. Submerging the part in sand will work. Just cover it and fill all the voids, process the part through the annealing process in an oven and let it cool. But then, you have to get the part off and try to remove the sand. Since the part can partially melt during this process, the sand tends to stick to the part and is hard to remove. Also, you can't very well rinse the part in the sink as you do not want sand down your drain or in your disposer.
A Better Solution
By using a very fine Salt Powder or Salt Flour, you can perform the same process only there are multiple advantages over using sand or another substance:
3D-Fuel Annealing Salt™ is an excellent choice for annealing parts with difficult geometries. Try a box today and see for yourself!
Use a baking pan or other oven safe container larger than your part and fill it partially with 3D-Fuel Annealing Salt Powder. Lay your part(s) into the salt and be sure to pack any voids so that they maintain their shape. Then, cover the rest of the part until it is fully submerged in the salt.