Answer: Do
you have a Mckay stitcher? I usually remove the
entire sole -- everything. Sometimes I can pull
it off. Sometimes I have to grind it off. It is
messy.
Then I Mckay the
rubber or leather midsole on, and I usually
stitch a second midsole on with the outsole
stitcher. Next, I glue on the sole. Sometimes I
have to fix the leather around the edge before I
stitch on the midsoles.
Click here to see a picture of a pair that I did
recently.
Gene Hartsock
Hartland Shoe Repair Co.
St. Paul, Minnesota
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Answer: You
are working with PUR (Polyurthane Rubber) or TPR
(Thermoplastic Rubber), not PVC.
The molded base
can be PUR with a TPR skin like the ECCO shoe
and boot line. It might also be a TPR format
that is TPR throughout the mold.
That being said
you need to identify the compound used. Once the
material is identified, the job becomes rather
simple.
Start with the
thumbnail test. If soft thumbnail pressure
resembles EVA, (holds the nail impression) it is
PUR. If the full outer footbed or outer molded
sole looking at it from the side has more than
one color the thumb test is necessary. ECCO for
example covers a PUR base with a TPR shell.
Remove the TPR shell to the soild PUR line and
you are in business.
TPR, on the other
hand, is most difficult to deal with but with
the proper knowledge and application it is well
mastered.
E-mail
my company and I will send you a material ID
layout and a comprehensive bonding format to
enhance your business.
PUR, TPR, PVC now
make up 60 percent of our business. If you are
not in tune, you're toast!
Donald Myers,
OST,Pedorthist, President
NEWSHOES- Professinal Shoe Recrafters &
Pedorthic Center
Tigard, Oregon