hi,

my company is considering employing Fibre Reinforced Plastic (FRP) to repair pressurised vessels. My concern is that this repair is "designed" to last 15-20 years, and knowing the ageing problems of certain polymers, I fear this option will cost more in the long term if the composite wrap is meant to be replaced every 5 years (due to ageing and not delamination and such).

FYI, the Fibre Reinforced Polymer element will be subjected to cyclic loads (comparable to thermal spiking), Ultra Violet light (UV), hydrocarbons (plastization) in a marine environment.

I am looking for a reassurance or confirmation on the subject.

Regards

bernard