Cleaning out your isopropyl alcohol

Covid-19 has made supplies like Isopropyl alcohol hard to find, and on the chance that you do find some, it isn't cheap. Or even if you just like being conscious about the resources you waste, this guide will walk you through how to clean your isopropyl alcohol of resin. 

Step 1) Leave your container of resin out in the sun. You want to keep it there without movement, so your resin can settle along the walls and bottom. If you have a UV resistant container like I do, I would recommend pouring it out into a clear one. I was too lazy to do so myself, so I just left it out longer. How long you should leave it out depends on several factors, I would recommend at least one day in direct sun, but there's no harm in leaving it there for longer. 


Step 2) Take a look at the inside of your container. Chunks of resin should be stuck to the sides and bottom like such.


Step 3) A second person might be needed for this step. Grab a second empty container and a filter with a strain to catch any solidified resin that tries to go through. Just pour the isopropyl alcohol into the new container. You can pour the entire container over, or if you want to eliminate any chance of mess, grab a disposable syringe. If you decide to use the syringe, expect to spend quite some time emptying large amounts of liquid. Keep in mind that you won't be able to filter all the resin out. As you can see, my isopropyl still has a yellow tint to it, but it's still a significant improvement. 


Step 4) Scrape the resin stuck on the side and pour it into a ziplock bag. Give the bag a good seal and fully cure the resin in the bag before disposing of it. 


Step 5) In my case, I had to disassemble the propeller with the Anycubic wash and cure as it was gunked up with resin. I removed the main bearing and let it soak in isopropyl overnight to get rid of any contaminants. 


Step 6) Your container will probably still have some junk in it, I would recommend cleaning out the insides with paper towels and a couple of isopropyl sprays. After it's in acceptable shape, put the propeller back in, and you are good to go! 

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