Pour the wood hardener into a small jar or bowl.

This is a strong chemical. If you do not have a steady hand, protective gloves are recommended. If you do spill this chemical on your skin, stop what you are doing immediately and wash the point of contact with soap and water.

Take a small bristle brush and evenly coat the inside and outside of the socket.

Allow the liquid to completely soak into the wood and dry before moving on to the next step.