From: "Vladimir Galogaza" 
To: "ATM shore" 
Reply-To: "Vladimir Galogaza" 


Russ,

I am not able to prove it but complex structure of your tool (lap)
consisting of plywood, cement, adhesive and pitch is something that I will
avoid. Reason is that thermal expansion of various materials, will cause
unpredictable shape changes of the lap. Pitch resting on the skin of
polyurethane glue will also change its figure reacting on the pressure
changes and distribution at polishing time. Pitch on dental stone and
nothing else, will minimize those effects. There are so many possible
sources for trouble that increasing their number without good reason is
contraproductive.

Regards
Vladimir.

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