Pro-Seal and similar products are two-part polysulfide integral fuel tank and fuselage sealants. They have exceptional strength and jet fuel resistance as well as excellent resistance to oils, solvents, all fuels, and weathering. We offer a Pro-Seal equivalent which is a B-2 type material and meets specification MIL-S-8802E, Type II, Class B-2. These kits are packaged in poly bags with nozzle, plunger and instructions.
Very poor adhesion. It's been over a week since applied and still waiting for it to cure. Still sticky, even after applying heat per instructions. Avoid this product.
You must not have mixed it properly I used it twice and it cured within 4 hrs to where I was forced to open a new tube cause it cured enough that when I need more it was set up in the tube after 4 hrs in hot weather.
I used it again with Excellent results, this time I was more aggressive with the mixing giving it more than the recomended min 50 strokes and like it says on the packaging extra mixing may initiate curing of sealant inside the cartridge...which it did, as I noticed it got hard to push it out of the cartridge ( I was just using my thumbs to push it out of the cartridge as I don't have the cartridge gun or know where they sell it ??) but I still had plenty of time to get what I needed out of the cartridge for my job on my new fuel tank...it works no leaks on the NTP threads !! Its too bad they don't make smaller tubes to eliminate waste, because once its mixed you must use it, as the stuff left inside the cartridge sets up to a rubber like solid compound within hrs or overnight.
What is the maximum operating temperature of Pro-Seal after it has cured?
It has a service temperature range from -65*F (-54*C) to 250*F (121*C), with intermittent excursions up to 275*F (135*C). Is this Pro-Seal product compatible with methanol?
The tech data sheet only refers to aviation and jet fuel. It has been used in race vehicles that use many alcohol type additives without any known problems, but the supplier will not recommend it since it has not been lab tested. What is the shelf life of the unmixed product?
The shelf life is 9 months from date of packaging. Will Pro-Seal cure to a rigid state or will it remain flexible for repairs on a fuel bladder?
It will be flexible when cured, but we recommend verifying with the bladder manufacturer this material can be used. How do you mix this Pro-Seal tank sealant if you didn't purchase the mixing tool?
Per our product support manager: The user would have to pump and twist the ram manually by hand. The mixing tool saves a lot of time and effort.
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