I took a basic timber framing course last summer and am finally ready to start cutting some mortises, tenions and scarf joints for the sole plates of my small garden shed. In class, they used an emulsified wax coating to put on the fresh cut tenons and mortises to keep them from drying out and cracking. My notes say this was "Anchorcote" but I cannot find this with any internet search. Can someone help me? What is the stuff? Where can I find it? Is it absolutely necessary? Thanks for your help.
