In a message dated 11/2/2011 5:27:59 P.M. Eastern Daylight Time,  
[email protected] writes:

We'll  gladly ship our tread molds to anyone who wants to make themselves 
a set  of treads.  We only ask that they are returned in a form that can 
be  used by the next person.

Frank P.


no offense Frank, this isn't to knock your work making the molds or  you 
using them, but i have had new molds start to tare on their first pull -  just 
because they wanted to. So sending out a set of used molds, having a dozen  
or two batches of castings made and hoping they come back in good working 
order  is a bit of a stretch as I'm sure they have been used a few times all 
ready, but  still very possible as they have no undercuts. but they also 
have their age  against them as the molds will dry out over time regardless of 
how much release  spray you prep the mold with.
 
on average a good set of molds (depending on surface detail and type of  
rubber and resin being used) will have an life of 25 to 50 pulls before they  
start to show some sort of surface ware such as a slight crinkly skin and 
the  castings will start to be off (smaller as the molds tend to swell up when 
the  resin cures and heats the rubber, slowly baking it)
 
Chris,
_Odyssey  Slipways_ (http://hometown.aol.com/odysseyslipways/index.html) 

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