I cast a license plate cover embedded with Lego heads in epoxy resin. When I had it out in the sun spraying it with sealant, it started becoming flexible! I know that’s not entirely preventable when using epoxy resin, but I was thinking I could maybe reinforce it in some way.
My ideas so far:
Glue it to a plastic license place frame
Cast a second piece to put underneath it so that at least it’s thicker (right now it’s about a millimeter thick)
Though I don’t know if either of those will even help! Does anyone have any ideas? Thank you!