Support BladeForums! Paid memberships don't see ads! I feel a little guilty for not sharing this earlier. For several years I've been using generic DPG (dipropylene glycol) on my axe wedges. It makes them hold tight. But here's what I hadn't shared. I mix it with 20% water. I stumbled on this amount as a wild ass guess after reading an MSDS for DAP's version, Wood Swell & Lock. cedarriverforge.com/Photo-index/axephotos/DPG-Swel lock/Wood-Swell-Lock-DAP-Inc-2000.pdf DAP states here that their product contains both DPG and water but doesn't give the percentages. I interpreted this to mean that the water was part of the key to swelling the wood and then somehow the DPG locks the wood in its swelled condition. I guessed 20% water and found it worked well. Later I finally found an MSDS for Swel-lock and they confirm that their product contains 71-80% DPG. In another place it suggests they use 75.49% DPG. cedarriverforge.com/Photo-index/axephotos/DPG-Swel lock/Swel-lock MSDS B745-4000.pdf So here's a heads up. Mix a little water into your DPG. I like to apply it with a dauber which I store outside the bottle so that the water doesn't rust it. OK, cat's out of the bag and I feel better.