 Help me figure out what make with this. |
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| Mikey914 |
 Mar 1 2024, 12:31 PM
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#1
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The rubber man  Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None 
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What is it ?
Polytetrafluoroethylene Size - I have a bunch cut at 1.75"x1.75"x2" and some strips at 1.75x1.75 at 36" So I can mill or lathe these to make parts easily. The material is known as PTFE Otherwise know as Teflon The question is what to make with it. My 1st thought was a late shifter bushing at the trans. Some have been made out of Brass, but this would be the best possible material. Then Pedal bushings were another thought, but instead of making a product that once the supply dries up I won't be able to make as the cost would be prohibitive, it needs to be a part that clearly this is the best material. So I put this out to the brain trust - What to make ? Here's some more properties Melting point is about 327 C It's chemically inert It has a VERY low coefficient of of friction - nothing will stick to it. It is flexible under a wide temperature range even very cold What to make? Attached thumbnail(s) 
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| jd74914 |
Mar 1 2024, 12:54 PM
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#2
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Its alive Group: Members Posts: 4,780 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
I've never had good luck with PTFE bushings. They always seem to cold flow and thin.
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| sportlicherFahrer |
Mar 1 2024, 01:57 PM
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#3
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Nothing to see here. Group: Members Posts: 1,072 Joined: 18-April 05 From: Tacoma, WA Member No.: 3,945 Region Association: Pacific Northwest
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Rear lid torsion spring rollers?
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| Mikey914 |
Mar 1 2024, 02:49 PM
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#4
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The rubber man Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Rollers would be easy, we already make them in Delrin. I don't think the upgraded material would yield any better attributes for the part.
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| r_towle |
Mar 1 2024, 05:46 PM
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#5
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Custom Member Group: Members Posts: 24,567 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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Watch the movie “dark waters”
Read the most recent ban that the FDA has put out. Be cautious regarding how you use it, machine it …all of tgat. Be concerned with how you dispose of tge waste. It is far from chemically inert. |
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| windforfun |
Mar 1 2024, 06:58 PM
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#6
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Senior Member Group: Members Posts: 1,776 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None |
Thanks to DuPont & frying pans, Teflon is in virtually everybody's bodies on a small but permanent scale. I used to work for DuPont.
Dump it, or better yet, mail it to DuPont in Wilmington, Delaware. It's as permanent, if not more, than radioactive waste. Its half life easily exceeds that of used plutonium. I suppose you could burn it & pollute your neighborhood air. Don't breath in that shit if you do, especially if you have dogs. My trunk spring rollers are made from aluminum IIRC. Maybe SS. Screw the emoticons. Screw the emoticons. Screw the emoticons. |
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| windforfun |
Mar 1 2024, 07:26 PM
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#7
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Senior Member Group: Members Posts: 1,776 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None |
Forget about the burning suggestion. I just took some steaks off the grill. I guess you could call that "mental association." IMHO. I wouldn't use the shit.
Screw the emoticons. Screw the emoticons. Screw the emoticons. Or whatever they're called... |
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| yeahmag |
Mar 1 2024, 08:17 PM
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#8
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Advanced Member Group: Members Posts: 2,421 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California
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I like the shifter bushing idea. Maybe front and rear sway bar bushings? Rebel Racing uses it for their front and rear suspension bushings and they work great.
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| rhodyguy |
Mar 2 2024, 01:28 PM
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#9
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,063 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
The 2 bushings that cradle the spring in the shifter?
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| technicalninja |
Mar 2 2024, 02:10 PM
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#10
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Senior Member Group: Members Posts: 1,163 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region
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QUOTE(windforfun @ Mar 1 2024, 06:58 PM)  Thanks to DuPont & frying pans, Teflon is in virtually everybody's bodies on a small but permanent scale. I used to work for DuPont. Dump it, or better yet, mail it to DuPont in Wilmington, Delaware. It's as permanent, if not more, than radioactive waste. Its half life easily exceeds that of used plutonium. I suppose you could burn it & pollute your neighborhood air. Don't breath in that shit if you do, especially if you have dogs. My trunk spring rollers are made from aluminum IIRC. Maybe SS. Screw the emoticons. Screw the emoticons. Screw the emoticons. @windforfun What about the dogless? OK for them to breath the dust/smoke? Just kidding! (IMG:style_emoticons/default/beer.gif) I have heard that overheating a Teflon coated pan absolutely kills any birds close by. I have not witnessed this yet... Have a 10K Macaw? Teflons not for you! |
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| windforfun |
Mar 2 2024, 05:48 PM
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#11
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Senior Member Group: Members Posts: 1,776 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None |
QUOTE(r_towle @ Mar 1 2024, 03:46 PM) Watch the movie “dark waters” Read the most recent ban that the FDA has put out. Be cautious regarding how you use it, machine it …all of tgat. Be concerned with how you dispose of tge waste. It is far from chemically inert. Copy that big time!!! |
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| worn |
Mar 2 2024, 10:00 PM
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#12
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can't remember Group: Members Posts: 3,149 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(Mikey914 @ Mar 1 2024, 10:31 AM) What is it ? Polytetrafluoroethylene Size - I have a bunch cut at 1.75"x1.75"x2" and some strips at 1.75x1.75 at 36" So I can mill or lathe these to make parts easily. The material is known as PTFE Otherwise know as Teflon The question is what to make with it. My 1st thought was a late shifter bushing at the trans. Some have been made out of Brass, but this would be the best possible material. Then Pedal bushings were another thought, but instead of making a product that once the supply dries up I won't be able to make as the cost would be prohibitive, it needs to be a part that clearly this is the best material. So I put this out to the brain trust - What to make ? Here's some more properties Melting point is about 327 C It's chemically inert It has a VERY low coefficient of of friction - nothing will stick to it. It is flexible under a wide temperature range even very cold What to make? What you have there is a large pat of butter. Leave it whole for the Paul Bunyan flapjacks. |
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| Mikey914 |
Mar 4 2024, 11:59 AM
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#13
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The rubber man Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Well,
Explains why I can pick up for nothing. Still it exists, I have a method of machining that will not create any airborne issues (cutting fluid). I do have a recycle company that accepts it. Still pondering. |
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