I need your help . I have a bathtub that need to be refinish . It is fiber glass. It also has 12 inch crack that need to be repair . Can you please help. The best and the cheapest to fix this problem. Need a answer A S A P. Can you please tell me where I can go and buy the stuff . I do know that LOwe's and Home Depot does not carry anything to refinish bathtubs . I live near Jackson TN