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

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 stuff works really well! It takes moisture out of the air super quickly and so far seems to have a fairly large capacity so it lasts a while before needing to be recharged.

This keeps my filament storage at <10% fast (sealed Sterilite container) Humidity in my area is between 40-50%, and an Eva-Dry 333 inside the box only kept it at 20%, even new. Haven't recharged them yet, but happy with drying performance so far.

Much better than silicon beads or other material, Work fast.

They work for removing water but leave behind a bunch of dust, and if you don't want it, the best way to do that is to distill.

These are awesome, have these in my 3D printer’s multi material system and now it sits around 8% RH.

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.

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!

Qualität gut

As described and as needed

These molecular sieves are amazing! Leaps and bounds better than plain silica gel. Perfect for 3D printer filaments.

Das feinkörnige hat natürlich mehr Oberfläche. Vermischt mit dem groben und Silika ist das gut für Luftgewehr bzw 6-7l Flaschen mit 300bar. Aktivkohle kann man auch direkt dazumischen. Die filzscheibe dazwischen nimmt unnötig Raum ein.

Als die Molekülarsiebe endlich bei mir angekommen sind (ohne zu klingeln vor die Haustür geschmissen wurden) war die eigentliche Verpackung schon kaputt und die Perlen waren großteils in der Tüte/Verpackung. Zum Glück hatten die Molekülarsiebe aber noch nicht so viel Wasser gezogen und wahren für mich, nach umfüllen, noch brauchbar. Sonnst kann ich mich bis auf den Staub bei der erstn Nutzung über nichts beschweren. Ich habe die Perlen genutzt um von meinem Lösemittel den Wassergehalt zu reduzieren. Hat gut funktioniert.