Waterproof Sealants

[ApertureScience]

Are there any good ones out there?  I use matte Mod Podge right now and its weakness to water gives me issues.

[Ellis1342]

I am trying to find the answer to this myself. I want to make a couple custom sea ponies, but I still want them to be water resistant so they can be played with. Eskara and I decided we need to have sea ponies with us at the next con we do to play with at the indoor pool.

[Griffin]

The polyurethane based sealant I use (Folk Art Artists' Varnish) is waterproof. I still wouldn't submerge a custom pony as water will get in from the hairline and probably cause the paint to flake. Perhaps a seapony without an FBR might be able to come through without damage, the varnish should be able to protect symbols and eyes.

For regular ponies it works amazingly, however. I've never had any problems with boil perms even though I never manage to keep the pony's body from getting wet in the process, no matter how careful I try to be. I still try to protect the pony by placing a towel or something between the body and the hair, just in case, but I've never noticed any damage on the sealant or paintjob.