Slice Engineering (2lb) Activated Alumina Desiccant Beads | 10X More Powerful Than Silica Gel | Infinitely Rechargeable | Prevent Wet Filament | Reusable Desiccant | Made in the USA

I’ve been very impressed with the Slice Engineering 2lb Activated Alumina Desiccant. It arrived quickly and the container makes it easy to pour and refill smaller holders without making a mess. Compared to orange indicating silica gel, this absorbs more moisture and seems to last longer before needing to be recharged. The tradeoff is that it does not change color, so you will want to monitor humidity levels with a hygrometer rather than relying on visual indication. I use this in 3D printed spool desiccant containers and in my AMS desiccant holders, and it has worked extremely well. Humidity stays low and filament performance has been consistent. To recharge, I dry it in my AMS HT using a high temperature safe container at full temperature for a couple of hours, and it is ready to go again. If you want a higher capacity desiccant solution for filament storage, this is a great option and I would definitely recommend it.

I switched to activated alumina for my 3d printing needs and don’t regret it. Sure it’s more expensive than silica per pound, but this stuff works really well, and I find it keeps moisture levels lower for a lot longer than silica did. There’s no color change to indicate it’s time to dry it out, but I’m running a hydrometer for that. I don’t have to worry about the toxicity of the chemical makeup when cooking off the moisture to recharge like I did with silica. I ended up buying a second 2lb bottle, as one contained a little more than what fills up all the dry pods in my BambuLab AMS + 4x reel pods. So now I can dry/recharge a batch ahead of time and swap it out quickly to minimize the time it’s exposed to the open air.

I use this stuff in desiccant boxes in a Bambu Labs AMS to keep my filament dry during printing, and it works quite well. I run a cheap hygrometer in the AMS to get a rough estimate on the humidity in there, straight out of the bottle this stuff immediately kept my AMS humidity to 8-12%, after a few months of use it has crept up some but it's still working and I intend to dry/recharge it and use it again.

I have tried their hotends and hated them for clogs. That said, this works really well. It took my humidity down to 8%. The other stuff kept it at 16%. There is no color indicator, so you have to pay attention to humidity levels. I have not had luck with drying this in the microwave, but an oven works well. Overall, great stuff. There is enough in the bottle that you can dry a batch and put the rest to use. Five star product made by an American company.

Used to reduce moisture in my 3D printer filaments, and it works great.

Great product, but container doesn't hold 2lb. 2lbs is about 907 grams, but the product including the can is only around 850 grams. Not a huge deal, but worth noting. I weighed it with an accurate weight. It's still a great product, and I am happy with my purchase.

This is insanely powerful drying desiccant. I use it in the storage bins that hold my opened 3d printer filament. When it's fully charged, I have measured the humidity to be less than 1%. After a few months of opening and closing the bins in the humid south, my humidity sensors will let me know when I should "recharge" the desiccant in an oven at a sufficient temperature and time to remove all of the collected moisture. I really like this desiccant since it's non-toxic, so it doesn't cause issues with pets or little children. This is very durable and are hard to crush. They don't turn colors like other desiccants (which is often toxic), so a sensor is recommended to know when the humidity is starting to rise. It's very easy to use... just put 1/4cup in the bottom of a small bin or put in a breathable pouch or container. Best value for protecting my 3d filaments.

I just got my X1C couple months ago and learned about this keeping filament dry thing recently. I only print for personal use which is not often enough to justify buying a dryer in my opinion which would also take up more space in my home office, so I opted for the route of getting more desiccant that can recharge. It's been quite humid recently in LA, and with the AMS closed most of the time with bunch of desiccant packs, it's been about 35% humidity and the app shows C or D which is not ideal and it worries me since I've been seeing more stringing recently. It started raining yesterday, so I printed the desiccant boxes for the AMS and got this item with overnight shipping. I put them in the machine sometime early this afternoon, and slowly I can see my hydrometer number keeping going down once I placed everything in the AMS :) It's been not even 10 hours, and I opened the box couple times changing filaments, the Bambu studio shows it's "B" and my hydrometer shows 10%, X1C screen shows the AMS is 19%. Either way, it's way better than 30+ prior and I'm very happy about it. So far so good, easy to fill, I don't see any powder/residue when I pour into the boxes. Yes it's a little more than the silicone stuff but this works amazing and it's also rechargeable. I'm glad I gave this a try :)

Utiliser pour maintenir le pourcentage d'humidité bas dans les boites de rangement de filament 3D.

フィラメント保管用のボックスで使用しています。 こちらの商品は通常のシリカゲルより密閉容器内の吸湿性能が優れています。 シリカゲルだと湿度20%前後だったところ、これに切り替えたところ1時間程度で15%に一晩経つと10%前後まで下がっていました。 価格は高いですが価値ある商品です。