🚀 go-pugleaf

In article <a750288.19@pan.mc.ti.com> a750288@pan.mc.ti.com (John E. Brennan) writes:
>In article <1992Aug31.204952.29444@serval.net.wsu.edu> bill@wsuaix.csc.wsu.edu (William E. Johns;S23015) writes:
>>In article <a750288.16@pan.mc.ti.com> a750288@pan.mc.ti.com (John E. Brennan) writes:
>>>I'm hoping somebody can give me some help with these questions.
>>>
>>>1.  What adhesives can bond high density polyethylene to rigid PVC or 
>>>    HDPE to itself?  The bonds would be used in outdoor applications.
>
>>I would guess that your best luck would be in bonding HDPE to PVC or itself
>>would be with HDPE itself.  Use it as a hot melt.
>
>
>THANKS A BUNCH FOR THIS!!  We've made up a few samples using a hot melt and
>they're doing great.

Good.
>
>>>2.  What plastics would be resistant to soaking in hot transmission fluid?
>
>>I just gotto believe there are lots and lots.  How hot?  Nylons, delrin,
>>PTFE, what's the application?
>>>
>
>The application is a casing for an electrical part inside a transmission.
>Temperature would be 250 F or above.

Hmmmm.  This could be interesting.  I suspect that any number of polymers are
stable to that environment, but if you are gonna try and seal something
inside of a container, then your seal will be suspect.  Tranny oil just
isn't all that expenseive.  Get yourself some chunks of various polymers, 
machine them out to a smallish edge and treat with hot tranny fluid for a bit.
By knowing the dimensions and weights before you start, you can determine
which materials has the least uptake and is the most dimensionally stable.
Take the toughest one and make your container using a really good o-ring.

Ride Free,

Bill
________________________________________________________________
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