Hi kingwoodbarney, gorilla glue or polyurethane the big name,if not clamped or secured the wood will be pushed apart when the glue sets up because it expands,also on the container it states use in well-ventilated area do not contact skin, may result in acute or delayed damage to the lungs,mine bottle is around two or three years old,after each usage,I stick a screw in the end then turn bottle upside down to seal itself,it still works great.