What are the forms and causes of damage to frp tanks? 1. Beware of overpressure of frp tanks; the typical form of circumferential stress failure is longitudinal cracking in road pipes and vertical cracking in vertical tanks. 2. Plastic laminates crack and leak due to excessive design conditions such as overpressure, over vacuum limit, vibration, vibration from steam jet heaters. 3. Chemical erosion of laminates can take many forms, such as solvent action and dehydration. 4. Damage to the nozzle may be due to incorrect design or unsuitable support; do not carelessly apply to the nozzle of a FRP tank for heavy loads only in time, and require and use a short nozzle with a minimum of 100 PSI cubed gauge pressure, and reinforced with gussets. 5. GRP tanks and containers should be checked for cracks after shipment, which may occur if the tank is not properly supported; large cracks have occurred between the tank and the can due to improper handling. 6. To prevent a severe exothermic reaction in the tank, which can result in severe damage to the FRP tank, many systems that produce this reaction have been designed with tilt or cooling devices to resist large amounts of exothermic heat. 7. Poorly grounded frp cans can cause serious damage and can even lead to large ferrets with plate top, which is a weak link in frp cans. This can be proved theoretically by subjective design formulas and has been proven in practice, it doesn't matter if the tank is made of fiberglass or metal.