Clear or clear-ish machinable epoxy?

LLCoolBeans

Flashlight Enthusiast
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Anyone know of a good machinable epoxy that is transparent or at least somewhat transparent when cured?
 
I've machined a couple of the 5 minute varieties, but they require a sharp tool and you have to control the heat that's generated. Too much heat and they delaminate.

By machining I mean that I filled a hole with epoxy and after it cured I turned the piece to end up with a clear window flush with the surface.

Daniel
 
Any good epoxy is relatively machinable. Look for the slow cure marine grade epoxy. The type used with fiberglass to mount parts onto fiberglass. (Common with RC boats) the slow cure and a perfect mix produce a nice hard epoxy. Like GL said a sharp tool and keep it cool. A little bit of epoxy safe oil will help keep it cool. A high speed is also good, it tends to chip if you take large passes.
 

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