Re: OT: How can I glue a broken nylon gear?

On Fri, 03 Jun 2005 02:11:25 +0000, Mac wrote:

> On Wed, 01 Jun 2005 18:20:33 -0400, Mike Monett wrote:
>
>> Don Klipstein wrote:
>>
>> [...]
>>
>>> I believe the same is true of at least most grades of polyethylene, also
>>> polypropylene and PTFE ("Teflon", etc).
>>>
>>> - Don Klipstein (don@xxxxxxxxx)
>>
>> I don't know about the rest, but I found ordinary hot glue seems to work well
>> on polyethylene. I cut strips from a distilled water container and glue them
>> to the bottom of my mouse. Then if the pad is cleaned, it is almost
>> friction-free. A strip across the front stops the rocking motion when you
>> press the left button, so the cursor stays in place.
>>
>> The new pads are moderately difficult to remove.
>>
>> Mike Monett
>
> I think hot glue is actually molten polyethylene, so this is not
> surprising. From what I gather, heat fusion is the most reliable way to
> get polyethylene to stick to itself. There is also a relatively new
> adhesive put out by 3M, called Scotch-Weld 8005. It apparently sticks well
> to polyethylene (but not nylon :-( ). It is a two part acrylic which
> pretty much requires special ($45) pumps for dispensing. McMaster Carr
> caries it for those who might be interested.
>
> I found all this while researching a way to join two polyethylene sheets.
> I don't have first-hand experience with the adhesive.
>
> I'm going to try just using a hot iron. Luckily, polyethylene is cheap.
> ;-)

Be sure and put aluminum foil on top of the poly, so it doesn't stick
to the iron! (probably also underneath, so it doesn't stick to the
bench/floor).

Cheers!
Rich


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