Diesel leak from tank drain
I have a challenging problem with a diesel fuel leak. The weld around the drain plug on my diesel tank is weeping at the rate of about 2 tablespoons a day. I have tried quick dry epoxy which seems to ...
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The reason the epoxy did not bond well is probably due to fuel contamination at the bond line. I would drain the tank completely to stop the leak sand the surface or use a wire wheel where you are going to put the adhesive then wipe the area several times with acetone or MEK. I would apply about a .020 thick bond line allow it to get tacky then apply FG cloth that is wet out with the resin over the tacky bond line. The FG cloth will prevent the resin from cracking. The more surface area that is cleaned the better your chances of the adhesive holding. I would use an epoxy adhesive with a longer pot life like 20 to 30 mins.
