teflon ptfe

bluestreaksand-freckles  asked:

I was inspired by your post about lubricating knock off tangles. I used my bike chain lubricant (teflon/ptfe based) and it worked really well! It made my favorite colored knock off tangle easy and quiet enough to use in class, which I am thrilled about. I don't know how other lubricants smell but I have a sensitive sense of smell and it doesn't bother me much. There's a bit of an oily smell if I hold it up to my nose, but even then it's not overwhelming and I haven't let it air out yet.

Oh, wow, that’s fabulous! I’m so glad it’s working for you as well, and thank you so much for taking the time to let us know. Hooray for lubricant!

Here’s the WD-40 brand PTFE-based lubricant: Bunnings, $13.50 AUD. It’s absolutely designed for plastics, so if you’re worried about how the lubricant might interact with the Tangle plastic (ABS) over time, this is a pretty safe option.

I’ll be honest - I wish my cheap knock-offs held a tighter coil, but now I’ve lubricated them and can actually use them comfortably, I’m starting to appreciate them a lot more. I can get the cheaper fake Tangle Jrs for about $2 AUD each or less, which is a third of the price of the real thing. I can toss them in a bag and if they get crushed or scratched by my keys, it doesn’t matter. I can stick them in a back pocket or use them in my hands while walking somewhere. I can twist them as hard as I like, which is sometimes harder than a Tangle should be twisted. And if it breaks? Well, I just toss away the broken pieces, grab a new fake Tangle, and when I’ve got enough pieces put aside, make a new one.

(I like coiling them, so I need them to be eighteen pieces long.)

Unlike the real thing, they’re affordable to replace and easy for me to get - I don’t have to take a horrible trip to the good-but-out-of-my-way Toyworld. (Motion sickness makes going anywhere I can’t walk to a pain.) I just have order a few every few months so I’ve got some spares lying around, but they’ll be delivered right to my door.

$6 AUD each, plus the difficulty in sourcing the branded Tangle Jrs, is just expensive enough that I feel a bit (a lot) of anxiety about accidentally breaking or losing them. But $2 AUD lets me toss one in every bag and have one in every pocket; it gives me the freedom to stim without worrying quite so much about replacing them. My anxiety makes it hard for me to really use and enjoy a toy without having several replacements just in case (I know it’s more than a trifle obsessive) and knock-off Tangles make this so much less of a hassle for me. It’s quite liberating, to be honest!

It was so nice, yesterday, to toss one of the knock offs straight into my bag and have it easily accessible, and a quick spray of lubricant has made these fakes useful to me instead of a frustration.

I am so glad other people are having success with this. Thank you!

- Mod K.A.

Molecule of the Day: PTFE/Teflon

Polytetrafluoroethylene (PTFE), also known as Teflon, is a commonly encountered and extremely useful perfluorinated polymer. It consists of repeating -(CF2)n- units, and is therefore considered a fluorocarbon. 

PTFE is a solid that is both hydrophobic and oleophobic, and this useful quality has led to its usage in the coating of non-stick pans. It is also thermally stable, making it an appealing material for such purposes.

PTFE is also an electrical insulator and has a high melting point, which has led to its usage in wire coatings. Furthermore, it has one of the lowest friction coefficients known, so it is also used in industrial machines where sliding action is needed, such as bearings and gears.

It is produced via the free-radical polymerisation of tetrafluoroethylene (C2F4) using a radical initiator, which are usually persulfate salts.

Originally posted by yum-yum-yummey