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Alcohol Resistant Gas Tank Sealer

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Overview

This is impervious to all fuel types. Over 2,000,000 sold to date. It is the best way to repair and restore your fuel tank. Simple application, includes extensive application information and product information sheet. Will seal pinhole leaks and prevent rusting. 1 Pint will seal a 10-12 gallon tank. Good for all fuel types. Works well with all metal and fiberglass tanks.

Note: For Experimental Aircraft Only!

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Reviews

Great product, easy to use and technical support provided.

Kevin B Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

March 14, 2024

This product works very well.

Applied I Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

October 10, 2023

gas tank sealant was used on my 1927 AJS motorcycle ,sealed the few pin holes .it did a great job

Robert Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

June 20, 2023

Used it for some vintage motorcycle tanks. Easy to apply and works very well.

Ken C Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

May 30, 2023

Product was used to re-coat a fibreglass tank that had been treated with a 3M sealer back in 2005. The 3M product is soluble in ethanol and now that all gas sold in Canada comes with ethanol I needed to ensure that the original coating didnt peel off and clog filters and jets.

Bright A Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

May 30, 2023

Wrong stuff, not for sealing a tank. Don’t buy this.

David L Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

March 9, 2023

I haven’t used it yet. Soon very soon.

Michael T Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

January 13, 2023

Been ordering my aircraft parts from Bob Irwin since they were ACS products. Theyve been Aircraft Spruce now.. many years. Honest people you can trust for any of your aircraft related parts.. Bobs son Jim Irwin has been invisible fathers footsteps for many years at Aircraft Spruce Products.. Thanks Jim

Yates A Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

November 28, 2022

Item is doing the job of a pin hole leak.

Larry E Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

September 21, 2022

40 + years a go I use my first quart and still working in my tank. great stuff.

George H Verified Purchase

ALCOHOL RESISTANT GAS TANK SEALER QUART

August 24, 2022

Q&A

Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: I'm looking at sealing a very slight seepage at the sump drain flange on my RV-4- Aluminum tank with aluminum sump valve flange- and I use motor gas w/ethanol in my plane. I am looking at something with low viscosity to flow into the area that is leaking, and perhaps setting up a slight vacuum with a toilet punger to draw the sealant into the seepage.(this is aerospace engineering, after all). Does this product have a fairly low viscosity, or can it be thinned a bit with, say, MEK?

Per the vendor, if it is used shortly after purchase, part number 09-03477 should not need anything to thin out the product. Make sure it is well mixed and it should be fine without any additional products.

Q: Will this also adhere to plastic gas tank such as on a snowmachine? It would also have to be resistant to extreme temperatures such as -40 to +180 approx.

This sealer is only recommended for metal or fiberglass fuel tanks.

Q: You say this works in fiberglass tanks, would it work in fiberglass foam epoxy tanks like the Long EZ has?

This is a tricky question. Yes it should work, but there are no specific tests done with any specific epoxy or resin system used to make a fiberglass tank. As long as the tank is cleaned and prepped properly, it should work just fine.

Q: You say this works in fiberglass tanks, would it work in fiberglass foam epoxy tanks like the Long EZ has?

This is a tricky question. Yes it should work, but there are no specific tests done with any specific epoxy or resin system used to make a fiberglass tank. As long as the tank is cleaned and prepped properly, it should work just fine.

Q: Can this be poured into wing tanks and sloshed around to seal leaks?

Per out product support manager: it is a sloshing material that will fill small pin hole leaks and seal the inner tank. It can be poured in and sloshed around in a fuel tank.

Q: What is the shelf life before this alcohol resistant gas tank sealer must be used?

Per the supplier: this product has a 2 year shelf life that starts once it is opened.

Q: What is needed to prepare the inner tank surface before using the Alcohol resistant gas tank sealer?

Per the manufacturer: The entire interior of the tank must be dry. If only one small area of the tank is not dry or has foreign matter that may keep the sealer from adhering, the sealer will not stick to those areas and could come loose and float around in your tank and eventually come through the fuel pick up tube and clog the fuel pump and carburetor. The solvent for this sealer is methyl ethyl ketone (mek). Before introducing any additives to fuel tank after sealer has been installed, be sure that the product you introduce does not contain (mek). (mek) can soften and loosen the sealer which in turn can clog your fuel lines, carburetor, etc. Avoid using "gumout" or similar products which have been known to use (mek).

Q: Is the alcohol resistant tank sealer (pn 09-03477) comparable with the pro-seal ps 890 class b (pn 09-38560)?

The 09-03477 is a sloshing sealer that gets poured in a fuel tank and the tank rotated so the material gets on all parts of the tank. The 09-38560 is a much thicker material and requires a brush to spread the material.

Q: Can this product be used in aluminum floats or aluminum boats to seal rivets and be applied with a brush?

The primary purpose of this material is to coat the inside walls of a fuel tank for protection. It is a pour in and slosh around material. I could not find any information as to how well it would work if brushed on, or what size pin holes, or rivets, it would seal.

Q: What is the application thickness that the manufacture recommends? Is this a single stage component? Or mix A with B?

This is a single stage component. There is no thickness that we recommend. Each application can vary. The product generally leaves behind a very thin coating. It is not supposed to be very thick. The idea is to pour the product in to the tank and slosh it around. Once all of the walls of the tank have been hit, they customer should drain the remaining sealer out back in to the can. There should be no puddling of the product as this will prevent it from drying properly. If the customer wants to do a 2nd coat after 24 hours with the remaining product, that is fine. This is only needed if for some reason they missed a spot during the initial application. A thicker coat or 2nd coat really won't offer any added benefit in terms of protection.

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