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Permatex Aviation Form-A-Gasket No. 3 Sealant is a slow-drying, non-hardening brush-applied liquid gasket/dressing/coating. Aviation Form A Gasket is a thin, brush-able dressing or sealer suitable for -65 to 400 F temperatures. Resists antifreeze, gasoline, oils, and lubricants. 4 oz. bottle. Also great for sealing tapered and straight threads on fuel fittings that require gasoline resistance.
| Chemical / Solvent Resistance | The product retains effective properties in contact with water, ethylene glycol, gasoline, motor oil, transmission fluid and sea water |
|---|---|
| Product Benefits | For close tolerance flanges, Slow drying, Flexible setting, Withstands pressures to 5000 psi |
Suggested Applications:
Close-fitting machined surfaces, sealing hoses, solid gaskets, Threaded connections, Fuel fittings, marine engines, aviation engines
Reviews for Permatex Aviation Form-A-Gasket No. 3 Sealant
February 4, 2022
Verified Purchase
I has two fuel line fittings that wouldn't stop leaking. I applied this sealant as per the instructions and on the first try both stopped leaking!
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May 29, 2019
Verified Purchase
Sealer worked great, work as advertised.
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August 13, 2018
Verified Purchase
Did a head replacement. Used this on bolts and most gaskets (not head gasket). Seemed to work well.
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July 17, 2016
Jamestown should put items like this in a separate plastic bag AND tape around the cap of the bottle.
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April 16, 2014
Verified Purchase
While the product is very good the packaging was not. This is some very sticky stuff and despite the extra little flap of tape that JD put over the cap it still leaked all over the rest of the contents of my package. Either order this product alone or only with other products that can be wiped off with paint thinner or solvent.
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