I'm looking for a potting compound that will withstand saltwater immersion. Can anyone recommend a manufacturer? or can I just go with Digi-key's off the shelf material?
You may also want to look at silicone's from people like Nusil or
3m. Silicone is used on a lot of underwater equipment. Dymax offers a some good UV cured materials. Depending on your configuration you maybe able to use a Marine Caulk like the #M 5200. Jamestown Distributors has list of the many caulk and adhesives. Again depending on your application you maybe able to use a ceramic potting compound.