Thanks MARTINSR. Just got off the phone with Jeff at Rubber Seal.
It looks like they don't yet have a link up on their site with the 2-part rattle can epoxy primer details. Jeff confirmed that the product does indeed exist. He said to shoot him an email, and he'll get back to me with product details or literature. I just sent the email, so now we're awaiting a reply, and we'll take it from there.