POR-15 Fuel Tank Sealer – Stops Rust, Corrosion & Leaks – Resistant to Gasoline, Diesel, Alcohol & Additives – 1 Gallon (128 oz) – Ideal for Cars, Trucks, Motorcycles & Marine Fuel Tanks

POR15 products need no introducing .This can easily did my 2 gallon Motocycle tank, you'll need to strip and fully de rust the tank first or IT WON'T WORK .Needs serious mixing, the bottom of the can was the separated out part, I tried shaking it a while to no avail so I used an old CLEAN large flat bladed screwdriver to slowly turn and turn it until the colors were fully mixed, takes a goodly long while .Once opened the stuff needs to be used soon so DO NOT OPEN THE CAN UNTIL THE TANK IS DE RUSTED AND YOU'RE READY .I used a medium sized plastic funnel to pour it in then I capped the tank and began rotating it to ensure the mix flows into every corner and crevice ~ this is not a job you can rush .After making sure it had fully coated the inside of the tank I cleaned up the stirring screwdriver and funnel, it's easy to do if the stuff is still wet, once it dries it's *PERMANENT* so watch there you're working as it WILL NOT COME OFF EVER . floor, driveway, clothes, etc. .if the tank you're working on has any pinholes, be sure to tape them up first, this stuff is amazing and plugs BB sized pin holes easily .Don't forget to follow the instructions to the letter and remember to keep tuning and tipping the tank so the mix covers all crevices and the inside of the top too .I polish then wax the tank first so any droplets I might spill are easy to wipe off right away .I also tape around the filler neck with blue painter's tape because I'm extra cautious .I used this product in a 'Hail Mary' to save a 40 year old badly rusted and leaky Motocycle tank, I hope in time I'll find another but fr now it works fine, the ethanol laced fuel doesn't seem to bother it .I imagine I could have done up to a 5 gallon tank .-Nate