Devcon 2 part 5 min epoxy stays clear and to eliminate the bubbles when applied get some fine stiff stainless steel wire and pop the bigger ones that would cause cavities after drying. Micro bubbles are an enhancement as they give little points of brilliance that are an attractant on a fly.
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SBS
This little shoal was hand turned on my Peak - not an exercise I want to repeat again!
With regards to speeds, 7 rpm is as fast as you want to go otherwise you get some 'fling' (lumpiness) if using a faster speed. Microwave turntable motors, glitterball drives, bbq rotissiery motors etc all fit the bill and with about $2 of wood will produce an excellent epoxy dryer.
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