Deer skull care

Any tips on what to coat my Muley skull with, got it back from a friend that cleaned it /bleached it up for me. I've heard of using Elmer's glue to keep it white but that was years ago?
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sneekeepete
Got this tip from a buddy who does a lot of euro mounts for locals. He sprays his with flat white spray paint and they turn out great. He has some that are fairly old that still haven't leached any color through.
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