Hello Greame, my apologies for not responding sooner. First, mix a
batch of epoxy and then allow it to stand until the pot life has
expired (approximately 45 minutes) then apply it to the 1st 1/4
section of the band or ring/curve, .... heat cure at (no higher
than) 150 F for about 10 - 15 minutes. Allow the band/ring to cool
and repeat the process for the next 1/4 sections of the ring.
Also, if you find that you have under filled a layer of Colores or
Durenamel epoxy in a design, you can add fresh colores or durenamel
to build up the layer ... if this is done within 72 hours of the
original mix, it will form a seamless bond between the epoxy layers
as long as the epoxy was not totally cured using heat.
I hope this helps.
Rio Grande Technical Support