lining failure - Friday, March 09, 2012 - MIROSLAV some of our tanks API 12B have Plastic lining fiberglass reinforced and implemented under the guidelines of API 652. one of the tanks that have this lining, applied 10 years ago, was inspected recently and managed to find some discontinuities in the glass fiber reinforced, as shown in the attached image. please if anyone has experience with this type of lining and if you can comentarme about the deterioration suffered and whether failures were similar to the image. would be nice if they also experience in repair procedures of this lining. regardsPost a Reply...
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Re: lining failure - Tuesday, March 13, 2012 - CNT This is on my list of reasons I dont like to use fiberglass coatings and why I remove them and apply epoxy coatings. If you were to repair these, I think you would need to cut back the fiberglass until you found some that was properly adheard to the tank floor and then do your surface prep of the steel and surrounding fiberglass coating and lay up a new patch.
Will patching this spot fix your problem? I dont know. It might fail again. The coating might fail somewhere else. Also, you cant very well inspect the condition of the steel floor through a fiberglass lining. Which is also on my list of reasons I dont use fiberglass coatings. Along with the fumes and hazards associated with applying the coating.
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Re: lining failure - Tuesday, April 10, 2012 - Raymand I agree with the above comments on the fiber re-enforced lining repair. It is just a matter of cutting back the damaged area, solvent cleaning to remove contaminants, apply putty to smooth the edges and then apply the resin and mat to complete the repair. After hardness is achieved, a gel coat of wax solution should be applied followed by a holiday test. Make sure to feather the wax coat on the remainder of the patch area so that the repair may be tied in to the remainder of the floor.
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