2 LBS 3A Molecular Sieve Desiccant Beads, Dehumidifier Moisture Absorbers

I use it in a Bambu AMS to keep my printing filaments dry, and it does a *far* better job than the ubiquitous silica beads at that. Silica beads are bad at adsorbing moisture at low relative humidity; a few small baggies of this stuff gets the humidity down to around 6%.The beads can be dried in the microwave... CAREFULLY. I zap a small amount (50g - 80g) for a minute, take it out to dry, and do 2-3 more rounds of 30 seconds. This can remove several grams of water.Be very careful and work in small increments in power and time as they can get EXTREMELY hot. Hot enough that a supposedly heat proof potholder I put under the cotton baggie with the desiccant got charred and started smoking when I overdid it a bit on one occasion.

One of the main reasons I bought these was to dry was to dry my isopropanol for a capsaicin extraction and I got a very pleasant surprise when I was about to drive my isopropanol first it was exothermic meaning it generates Heat second it had some dust inside which you can see in one of the pictures once the dust settles it should be good to go besides the dust these are a great product and I would highly recommend them also there was a"sealed for your protection" pieces of paper on top but when I went to lift it off it just kind of blew away when I did it right next to my air conditioner so I'm thinking they're a little less dry than I originally thought also do not try to pour them into a small opening cuz when I tried it for my bottle they spilled everywhere but I would say these are pretty good product oh if you're trying to pull out water from a chemical then use 3A

This product works perfectly

I have these installed in my Bambu Lab AMS, and they’re fantastic! I used to change my desiccant every two weeks, but it’s been about two months now, and my AMS is still reading only 10% humidity—huge improvement. These have solved a lot of my filament issues, and I’d 100% recommend them!

In my closed plastic box, this keeps the air in the box around 11-12% relative humidity with not that much desiccant needed. Just have to dry it out in the toaster oven after a month or two and reuse it.

These are good enough but so dirty you have to wash the heck out of them and then re-activate them before using unless you want brown dust in your solution.

Does the thing that it's supposed to do. Works great for keeping 3d filament dry.

We need very low humidity to store our dewpoint sensors. This product works perfectly.