OEM Supplier for PTFE O RING to USA Factory

PTFE o-rings are produced with 100% Virgin PTFE or filled PTFE,and fabricated to extremely close tolerances and to the highest industry and military specifications. It is resistant to most chemicals including acids, bases, oils, steam and other chemicals. It is also very tough and abrasive resistant.

Technical Data Sheet

Application Area

•  Agricultural, pumps, mining
•  Rail and transport use, Wheels
• General engineering applications
• Marine, Shipping, Automotive

I built a physical deposition chamber, for now it’s just evaporative deposition but I plan on adding a few other variants. The thin films created can be used in many ways.
The chamber still has a ton of space leftover and I have some more equipment coming so hopefully I can do more interesting things.
Sorry there’s no footage of lathing the feedthroughs, they worked nice with a cut o-ring and some heat shrink. Make sure you cut a slot down the holding screw threads to vent behind em. The 2 copper feedthroughs allow (with a center tap) 2 tungsten boats with different metals so I can avoid opening the chamber in a multi layer coating.
The pump down takes about 45 min. to get to 10e-5. I can use a small steel hemisphere with a kf40 hose on the top for use with a secondary high vacuum chamber. The shutter was aluminum flashing with some steel stuck on one side so a neodymium magnet on the outside of the bell jar could move it around without a feedthrough.
This build was really fun

I got everything from mcmaster, K.j lesker, ebay and what I already had

This did cost a bit to make:
diffusion pump- $160
mechanical pump-$140
plate- $270 (ouch!)
valves- $90
gauges- $200
misc vacuum stuff -$120
bell jar – $140 (stupid)
other stuff – maybe $100?

I recommend you check out https://www.youtube.com/user/bkraz333
he has done some neat stuff with his setup and a bunch of other things

Warning: Something might be dangerous

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