How to seal fuel tank

how to seal fuel tank

Fuel Tank Sealer

Apr 20, Visit for more information or buy the the "FAQs: What You. Oct 03, Before you apply the epoxy blend, ensure that the area is still clean and dry. Squash the gas tank epoxy putty into the hole. Flatten the putty against the gas tank, as you do not want to end up with a big blob of putty on the tank. Check to see if the hole has been thoroughly sealed.

JavaScript seems to be disabled in your browser. You must have JavaScript enabled in your browser to utilize the functionality of this website. Eastwood's exclusive gas tank sealer kits have nearly everything you need to clean a rusty, old, varnished gas tank of all the fuel residue and gunk, and seal it with a virtually impervious internal coating.

If you are careful, you can even use it to coat the inside of a motorcycle fuel tank without effecting the paint job on the outside. One kit seal tanks up to 5 gallons, and a few additional pints of sealer are all you need how to seal fuel tank larger tanks. Each additional bottle of sealer adds coverage for 10 to 12 gallons for tank internal surface area.

Muriatic Acid 2. Acetone 3. Bucket 5. Safety gloves and eye protection. Read all instructions before using this product. For larger tanks, use roughly 1 additional pint per 10 gallon capacity. If the tank contains baffles, be sure to consider the increase in surface area. Tank must be absolutely dry and free of water before applying sealer. Read and understand all instructions before use. After completion of step 6, tank interior should be rotating tank in all directions. A properly coated tank should have a uniform bright white coating of sealer free of any puddles.

Some excess should remain. Let tank stand for minutes with fill neck or sending unit open, then close openings and slowly rotate tank allowing excess to re-coat all surfaces.

Let tank stand for an additional 8 to 10 minutes with fill neck or sending unit open however, this time on a different side. Repeat this until the tank has the desired opaque white coating. Do not allow coating to drain to one area and dry. Drain off excess. Allow excess to dry and dispose of hardened material according to local laws. Forced ventilation is important to prevent sealer from reflowing and puddling and for thorough drying.

Remove all stops and insert a compressor air line, with pressure set at psi keep air line 2" or more away from the coated surface to prevent thinning coating. Cured coating should be slightly rubbery with no odor before filling tank with gas. Use caution as these materials are flammable and can damage paint. High temperatures and exposure to sunlight reduce normal storage life.

Product should be discarded if sealer becomes discolored. Lower temperatures temporarily increase viscosity. Avoid contact with eyes; keep from heat, sparks, or flame. Do not smoke. Extinguish all flames and pilot lights.

Turn off stoves, heaters, electric motors, and all other sources of ignition during use and until all vapors are gone. Avoid prolonged contact with skin or prolonged breathing of vapors. If irritation persists, get medical attention. If swallowed do not induce vomiting. Get medical attention immediately. Need Support or Have a Question? Press To Call Additional Supplies Needed 1. Read all instructions and plan work so that the entire process is completed in one session.

Do not allow tank to dry between sessions move from one step to another until complete. Drain and remove tank from vehicle. Wash out tank with hot, soapy water and thoroughly rinse with water from running garden hose. Remove valves, sending units, petcocks, and internal filters. Stop all openings except fill spout. Pour contents into tank and "slosh" around. Let it sit for 5 minutes on each surface. Thoroughly rinse with water from running garden hose.

At this stage tank should be free of all fuel varnish. There may what day is the start of a new week areas of clean bare metal and rust but all varnish will be removed. If any varnish remains repeat the Metal wash slosh until all traces of what is the effect of ph on enzymes are gone. Take clean tank outside.

Purchase Muriatic Acid available at hardware and building supply stores. Make sure at least one opening remains uncapped to allow pressure to escape. If rust remains repeat the diluted Muriatic Slosh until all rust is gone.

Pour out contents into a plastic container and neutralize by slowly adding baking soda until fizzing stops. Dispose of according to local laws. Thoroughly rinse the how to seal fuel tank completely filling and draining the tank 2 times with water from a running garden hose. It is normal for some light flash rust to appear on this surface. This will easily be removed in the next step. Pour entire contents of Fast Etch bottle into the tank and slowly rotate to allow it to contact all surfaces until there is a uniform gray appearance.

Pour out contents into original container and dispose of according to local laws or save for further parts rust removal. While the tank interior is still wet from the Fast Etch, pour in 1 quart of Acetone available at hardware and building supply stores. Tank should have a uniform gray appearance. Carefully inspect all tank areas to make sure there is no rust remaining. Repeat step 8 again with fresh Acetone. Dispose of used Acetone in accordance with local laws.

Shake sealer container well before use. Keep container tightly closed when not in use. Stop all tank outlets except fill spout. Pour Eastwood Gas Tank Sealer into tank, temporarily close fill neck, and coat entire inner surface by slowly rotating tank in all directions.

Customer Reviews

Step 1: Mix 1 quart Cleaner Degreaser with 1 quart of hot water. This solution will be used to remove any gum, varnish or sludge from the inside of the tank. Step 2: Pour the entire bottle of Metal Prep to dissolve rust, coat the tank with zinc phosphate, and etch the metal for better adhesion of the sealer.5/5(7).

POR Fuel Tank Sealer was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a high alcohol content. As a former mechanic I am always looking for a quicker one step process. My fuel tanki is a 24 gallon from a Reinell 19 foot boat. I had done all of the cleaning and prep work to the tank prior to receaving this product. I used a funnel and poored it in, Rolled the tank several times over a 2 hour period.

I then dumped the excess. I let the tank set on a level platform for 3 days to properly dry. I also left the holes open to vent.

I tested the tank with fluid and the sealer works perfect. Had a small link in a gas tank on a tractor around the coupler for the filter. I cleaned the tank using the POR cleaner and then applied the sealer. After rotating the tank and making sure the product covered the tank I drained off the excess and placed the tank in the sun. It sat there all day and overnight. Assembled the tank and filled with gas.

No leaks. Great product for my application. Not sure how it would work on tanks with larger holes. Order was processed quickly and the sealer appears to work just as advertised. Thanks for a liquidity, hard to find product. I restore antique small engines as a hobby. One end had at least a half-dozen pinholes in various places where the tank was so badly corroded.

Both tanks were unrepairable using conventional mechanical methods. Rather than toss them away I figured it was worth a shot giving this sealer a try. I had nothing to lose.

I was astonished at the results. If you take the appropriate preliminary steps for cleaning and prep, the finish is great. They look like brand new tanks inside. Just don't be in a rush. I let the sealer cure for a week. I bought this sealant to seal an old fuel tank for a Yamaha RX 50 that had rusted out and had several pin holes in the bottom. I soldered the holes, added the sealer to it and waited four days as per instructions.

My son picked it up two days ago and I haven't heard back yet. I was satisfied with the test I ran with kerosene but it remains to be seen what gasoline will do the sealant. It is important to understand each product in your repair and how it works. Proper chemical interaction is essential for achieving the best possible bond of the sealer to the inside of the tank.

Fuel Tank Sealer does not adhere well to plastic. If your fuel tank contains plastic components inside, they should be removed before applying Fuel Tank Sealer. Call POR support for assistance if you are unsure on how to proceed. Seal up those openings in the tank with duct tape or cork to keep the solutions in the tank when you clean, prep and seal the tank. Outside painted surface of your tank should be protected from preparation and sealing products with soft rags or other suitable protection.

Extremely hot water could melt the adhesive on the duct tape. You may add a chain or nuts and bolts inside the tank to help knock rust and varnish off when shaking the tank. Now empty the solution from the tank and rinse it out with water. Repeat with 2nd quart of Cleaner Degreaser if necessary. Roll the tank around to ensure it coats all surfaces.

Rinse the tank thoroughly with WARM water several times and drain it thoroughly low spots in tanks collect water so be sure to roll tank around to get as much water out as possible.

In order to get the tank completely dry, you must blow warm air into it because no tank will dry out on the inside by itself. The only way to do this job is to use forced air.

This can be accomplished by using a hair dryer or hot air gun. Do not use unfiltered compressor air. NOTE: Once the metal is treated, it can flash rust. Soak area with POR Metal Prep and keep wet for a minimum of 30 minutes; then rinse with water and dry. Next, paint area with a liberal amount of POR Fuel Tank Sealer and place a small piece of repair cloth over the wet painted area.

Now, apply POR Fuel Tank Sealer over repair cloth from the center outward so that the painted cloth is stretched evenly over repaired area. Let patched area dry until the area is dry to the touch with a slight finger drag before pouring the remain- ing POR Fuel Tank Sealer into the tank. If you are just patching and not sealing the entire tank let the patched area dry for 96 hours before adding fuel to the tank.

The tank cleaning process may reveal new leaks in the tank after removing rust and rust deposits from weakened and thin tank walls. These areas are likely to be in the low points and seams, especially if there are low tank areas below the level of the petcock.

These areas may have collected water from tank condensation and water in your fuel and over time may have corroded the tank metal. Carefully check these areas for leaks when you have fluid in there it will only be a very small trickle if there is a pinhole leak. Pour entire contents of can into the tank. In tanks with seams, and with low areas below the opening through which you are draining the sealant typically the petcock hole the sealant will puddle.

This is a very strong and durable coating. Take care to immediately clean surfaces on which you may have spilled the sealer. Any sealer remaining on painted surfaces will become permanent. Any excess sealer must be cleaned from screw threads for the petcock before it dries. A clean soft rag can be twisted into the screw holes to clean the material out. Have a question for our team? Size 8 oz Pint Quart Gallon. Add to Cart. Description Reviews Instructions Warning.

Formerly U. Step-by-Step Restoration. Before: This fuel tank had small pinhole leaks on the end near the seam. If the tank had a competitors old failed sealer, it should be removed with POR Strip Gel before starting the repair process.

Step 1: Mix 1 quart Cleaner Degreaser with 1 quart of hot water. This solution will be used to remove any gum, varnish or sludge from the inside of the tank.

Step 2: Pour the entire bottle of Metal Prep to dissolve rust, coat the tank with zinc phosphate, and etch the metal for better adhesion of the sealer. Step 3: After the tank is clean, drain the tank and rinse thoroughly with water. Let the tank dry. When totally dry, pour in the entire can of Fuel Tank Sealer.

Step 4: After all surfaces have been coated, drain the tank for about an hour to remove excess sealer from the tank. Customer Reviews. You may also like.


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