Thanks guys. Some
really interesting options here. I had
not heard of
either MxBon or Plastex and both sound really intriguing. After reading up on
both, I just ordered a
starter kit of Plastex. I may buy the MxBon
later, if
only just to keep it around, but thought Id wait since it seems to
have a
shelf life. Depending on what I
find when I remove the gasket, I may try
casting a new part or piece of the
part, or just try bonding the two pieces
together. Once it is all together I am also thinking
about embedding
something like a small brad across the break to reinforce it,
but Ill take it
one step at a time.
Now, I have to decide whether to keep the
plastic
welder or return it. And, if
all else fails, AppliancePartsPros is where I
got the $225 price for the new
gasket.
More to follow.
Jim
> CC: shop-talk@autox.team.net
> From: roadster@astound.net
> Subject: Re: [Shop-talk] Repairing plastic - weld or glue?
> Date: Fri, 22 Mar 2013 09:55:55 -0700
> To: jandkstone99@msn.com
>
> I have had great success using a product called Mxbon 105, along with baking
soda (sodium bicarbonate) to repair many plastic products. It's basically
super glue, or cyanoacrylate, but super refined and much more powerful than
regular super glue. It can be bought online, like at Amazon and hardware
outlets.
>
> You spread a bit of baking soda powder in the crack, and then apply a drop
of super glue. It chemically alters the baking soda into becoming a plastic
polymer that bonds with your damaged plastic item. (It chemically reacts in
the presence of water vapor in the air and on the surface; no need to place
water there, it's invisible and always present). I've also recreated missing
portions of plastic in tools by filling in the area with baking soda and
applying this technique (do it outside as toxic fumes are created with large
portions, and wear gloves and goggles).
>
> After a few seconds, you can sand the new plastic bond smooth. The finished
product is a polymer bond far stronger than epoxy or glue. I've had even
better results with sodium carbonate. You bake bicarbonate of soda (baking
powder) for 30 minutes on a cookie sheet, and it chemically transforms to
sodium carbonate (drives out the oxygen). Mxbon 105 is a fast acting super
glue. Mxbon 424 is a slower acting super glue to give more time to position
the pieces.
>
> Fred
>
> On Mar 18, 2013, at 7:43 PM, Jim Stone <jandkstone99@msn.com> wrote:
>
> > The plastic catch that holds the door closed on my refrigerator recently
> > broke. While it isn't necessary to the question I am about to ask, there
are
> > photos and more details about the broken part here:
> >
http://forum.appliancepartspros.com/refrigerator-freezer-repair/519815-broken
> > -door-catch.html#post803233
> >
> <snip>
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