Below is some information on our product :FTI is a manufacturer of a unique patent pending design.Our flexitanks are currently used by various companies worldwide to ship a variety of food grade and non hazardous chemical products.I have also attached the specification sheet for the material we use tomanufacture our flexitanks. Our material is made with FDA approved resin,and is approved for the shipping of food grade products and non hazardouschemicals.All tanks manufactured by FTI are pressure tested before they are packagedfor use.These tanks are made to form fit the shipping container leaving little roomfor error when loading. The fluid pressures in the tank reside primarily inthe corners, creating literally no movement in the container during transit.FTI flexitanks do not collapse on themselves when discharging, giving youthe most cost effective flexitank on the market today. This flexitankdischarges 99.9% of all the shipped material even when carrying heavymaterials.Please let me know what other information you need and I will be happy toassist you in any way I can.Thank you for your interest in our product. Paul EhmerExecutive V.P.Flexi-Technologies International