Teflon

[DGraber460 at aol.com]

In a message dated 9/27/2001 2:10:24 PM Mountain Daylight Time, 
j.d.larson at verizon.net writes:


> They were enamored of Teflon, but were
> having a terrible time keeping it in place under pressure.  I've heard this
> is a problem with suspension bushing applications as well. The stuff "grows"
> 

Our business is plastics, and I must agree that Teflon is NOT a good choice 
for suspension parts. It has what is called "cold flow", and will not hold a 
form under mechanical force. It is very hard to machine unless it is chilled 
stiffen it up. It's lubricating property makes it a great wear resistant 
product, but cutting tools glide over the surface only to finally cut deep 
after the force overcomes the "cold flow" property.
Delrin, by comparison, is very hard and machines very well.
High Density PolyEthylene (HDPE) is also a better choice then Teflon. Also 
much cheaper.

Dennis

Dennis

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