Sealing a Gas Tank with POR-15
Tank sealer can be used on any
metal tank with leaky seams, pinholes or rusty
interiors. Not for use on leaking fibreglass tanks.
“POR-15 Tank sealer” will not react with oil, petrol, diesel or
alcohol fuels.
Preparation
Empty the tank, taking care to use a suitable container and
correct disposal methods.
Remove the tank from the vehicle and take out the tank fittings.
Remove all foreign matter, fuel residues and loose rust from the
tank by cleaning with a strong detergent—“POR-15 Marine Clean”.
Mix a litre (one quart) of Marine Clean with an equal quantity
of hot water and put in the tank for 24 hours agitating
frequently.
The use of either a steam cleaner or pressure washer is helpful.
Repeat the process until the tank is clean.
Next use “POR-15 Metal Ready” to etch the inside of the tank and
to remove all rust. The tank should be propped so that any badly
rusted areas should be covered for at least ½ hour. A protective
zinc phosphate coating is left on the interior walls.
Rinse the tank thoroughly with water several times to remove all
traces of chemicals and then leave to dry. Use a hair dryer or
airline for an extended period to blow through the tank to make
sure no moisture remains.
YOU MUST INTRODUCE (WARM) MOVING AIR INTO THE TANK IF ALL
MOISTURE IS TO BE REMOVED. IF ANY MOISTURE REMAINS THE SEALER
WILL NOT WORK PROPERLY.
