Image record as promised from pervious post. I am attempting to polish an 8 inch mirror. I was using Tropical Resin Lap. The first attempts had way to many bubbles. The second attempt with the addition of more Castor Oil was much improved however only lasted one hour before it broke up. Obviously too hard and brittle. I have since ordered some Gugolz Pitch #55 from GotGrit.com suitable for my current working temperature of 16C.
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