It appears Waxilit was discontinued by Lee Valley:
http://forum.canadianwoodworking.com/showthread.php?47740-No-more-Waxilit.-What-to-use-as-a-glue-resist
One thought about this (and just my opinion) is that modern woodworking shows and instructional DVDs show FAR too much glue being applied to joints. In fact, I vaguely remember a quote from a WW book suggesting that if you don't have glue squeeze out all along a joint, you've "starved" the joint and it won't hold.
I think that's malarkey. I very, very rarely have any glue squeeze-out from any joint where I'm using modern PVA glue, and the resulting joints are unbreakable (the wood will break first).
Besides, it's generally only modern furniture designs that rely solely on glue strength; most period designs are carefully constructed to have multiple, redundant mechanical interlocks that back up the glue strength (pinned mortise and tenon joints are an example).
But, as Freddy notes, the best solution is the old solution - hide glue. The only time I avoid HG is when I'm building a piece that is intended for outdoor use.