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.
The product retains effective properties in contact with water, ethylene glycol, gasoline, motor oil, transmission fluid and sea water
For close tolerance flanges, Slow drying, Flexible setting, Withstands pressures to 5000 psi
Will this stop a leak where the metal diesel fuel line attaches to the fuel injector? It is a barb end that is compressed into the injector with fine tread nut.
It may but the problem is if any gets to the injector it will be a problem and could destroy the injector, best to replace fuel line which shouldn't need a sealant.
JD Tech Team
what is the diff. between this and "aviation form-a-gasket sealant liquid" #80019
Seems like the same product to me. Our part number is 80019 also.
JD Tech Associate
Can this product be used on plastic threads? The plastic threads are on a elbow fitting that will be inserted into a fuel pump.
I would think that would work, but test an area of the plastic to see if there is a negative reaction.
JD Tech Team
I would by this product again.
Sealer worked great, work as advertised.
Long Island, New York
Did a head replacement. Used this on bolts and most gaskets (not head gasket). Seemed to work well.
Bad packaging by Jamestown
Jamestown should put items like this in a separate plastic bag AND tape around the cap of the bottle.
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.