Under scuttle petrol tank leak

[Biddlecombe]

I thought that you may like to learn of my experience with my leaky petrol tank. Being a real newbie and having a weep coming from the side of the tank, not noticed until I put in 2 gallons of petrol and raised the level to the weep point, I searched on line for a repair shop. I found one fairly local who said he could fix it for £100. Well I knew no better and took the tank for soldering. After a week I had to chase a  promised 2 day turnround and finally collected. It looked a rough repair and so it turned out, it still leaked although not from the exact spot that had been soldered. Gary Edwards suggested that I try Tapox as he had a successful experience with the product. I ordered up and removed the tank again. The detailed instructions filled me with trepidation as it seemed it would take a week of various tasks. Wash it out, dry it thoroughly, derust it, thoroughly dry it with a 0.2 - 0.4 bar continous airflow through the tank for 5 hours, without a trace of an electric spark in the vicinity, luckily we had an airbed inflator so with a piece of hosepipe attached and tucked behind the garage door I managed to get through this part. Then fill with the 2 part product, splash it around and drain it out, and then allow to dry for 5 days in a temperature not below 20 degrees C. Well on the coldest week of the winter so far that was a bit of a challenge, how I got away with 5 days in the laundry room in front of the heater unit I will never know! Now to add a pint of petrol and check the colour, all good, no trace of red Tapox. Check for leaks, bugger, still weeping from the side panel. Although Tapox will stop rusting it is fairly thin and does not seem to fill up pin prick holes. The Tapox delivery was however delivered with a complimentary pack of Quick steel 2 part epoxy. I moulded a small amount and applied it to the outside skin of the tank, thinking that this would be better looking like a repair and paint it over, after all the car is old and looks it! Repairs I thought were inevitable and I don't mind too much. So this long saga over, all is good, Quick steel is it appears a very good product, very sandable after setting, and hopefully the inside has been preserved with the Tapox and won't get worse.
P. S. I have no association with this product, I speak only as a user of it.