RE: Are we kidding ourselves about desiccant?
I found with plastic bags that over time they can get scratched or torn and will no longer be air-tight. I keep all of my hydroscopic filaments in Polymaker dry boxes with 2 desiccant chambers filled with activated alumina. For the nylon (PA), PC and TPU I'll put it in the dryer before a print even if stored in a dry box.
How do you dry your activated Alumina? I have been using the Polymaker boxes.
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Chuck H
3D Printer Review Blog
RE: Are we kidding ourselves about desiccant?
I found with plastic bags that over time they can get scratched or torn and will no longer be air-tight. I keep all of my hydroscopic filaments in Polymaker dry boxes with 2 desiccant chambers filled with activated alumina. For the nylon (PA), PC and TPU I'll put it in the dryer before a print even if stored in a dry box.
How do you dry your activated Alumina? I have been using the Polymaker boxes.
When the box hydrometer reaches 25%, I dump it out on a baking sheet and put it in a convection oven at 250C for 2 hours.
RE: Are we kidding ourselves about desiccant?
Thank you,
RE: Are we kidding ourselves about desiccant?
Use dessicant that changes colour as it soaks up moisture. you will then know if it's working or not and when to refresh it.