There are many good 2 part epoxies on the market. Can you access the bottom of the cracks? i recommend if possible, get a piece of either thin plastic or metal and epoxy and clamp that to the bottom of the crack and just work epoxy into the top of the crack. let it cure 24 hours then sand for cosmetic appearancethanks
thanks i can get stuff on ebay i just wondered if there was any on here. the glues i will try i think there are some 2 part epoxies i can try