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the resin I used is Voxedlab Standard Photopolymer Resin Transparent , its the type use for 3d uv resin printers , what I did is make the hologram on a glass plate then transfer it to another piece of glass and glued it with 3d resin then after cured i remove top cover on polymer and painted with uv...

Also tested 3m 300LSE it shifts 1 wave length so if you shoot in red replay will be in green
if shot in full color it shifts replay angle 45%

I've been doing some test with this polymer to find something to work as and adhesive , and came across one thing that works, 3d uv resin the hologram is shot at 532nm for test, this test polymer was coated on both sides with uv resin polymer-test.jpg the layer hast to be thin and cured in sun light...

Because the 488 had a larger divergence that red that I used a +1 macro lens to lower it, because I need all that I can get from the 488, I can sacrifice 532 & 633 to get the proper mix, also took a friend advice to bend the mix 2x on the table to get a better gradual spread of the beam to have ...

I'm addicted to news , I didn't watch the circus at dc , work on optic table instead.

Very much like the inter play of light in opals

This may be of some interest, I did try to use clear optical adhesive it come in a roll to mount on glass , on a red 640nm reflection hologram and it took about 15 min it shifted to bright green, I'm wondering if you mount it to glass with adhesive first then let sit for 20min then expose, might be ...