I’m glad to say there’s finally some good news on the eye-blank front. A few recent castings have been coming out crystal clear! The new epoxy resin is starting to work out.
It’s crystal clear, without the yellowy tone of the eurethane clear-cast and without the blue hint of the noxious styrene resin.
The only issue is that it’s rather harsh on the silicone moulds, clinging to them very tightly. Mould-release has helped a bit but has also left the blanks with a slightly “frosted” surface.
I have some test blanks currently curing in hardier urethane-rubber based moulds, which hopefully will not require mould release. If they come out as well as I hope, I should be able to start production proper within the next fortnight.
A urethane mould curing
The experiments continue. More updates should soon follow. For science!
PS: Site gallery and previous post images may not respond correctly for a while as I shall be making alterations to the gallery plugin the site uses.
