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Posted in response to Re: Re: flat lapping help.... from Don Lundholm on October 30, 2007 at 17:27:17:

Re: Re: Re: flat lapping help....

Hi again Don,

You might want to give paraffin wax a try. It can be melted in a double boiler, then applied in a liquid state by dipping or brushing on the surface you want to protect. Once you have finished the work piece, the paraffin can be removed by submerging it in boiling water to melt it, which will then rise to the surface of the water since it is less dense than water.

This is a fairly standard trick for keeping the interior of geodes uncontaminated by hard to clean gunk while they are being ground and polished.

If you try this approach be sure and use a double boiler to melt the paraffin. I damn near started a house fire by using a single pot to melt paraffin directly over the flame of a stove during my candle making days back in the 60's. I inadvertantly got the paraffin so hot that way it reached flash point and while the ensuing results were rather exciting I wouldn't want to repeat them.

I suspect there might be some formulation of gelatin that could be used in a similar manner, although I haven't done the research or experimented with that.

Keep on Rock'n!

From Bob Keller - October 31, 2007 at 22:13:57

Message: 65243

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