I've been using the Permatex Aviation 80019. It's not thick. I know when I used it on my fuel pump fittings, it ran a little. Looks OK now. I did pick up a bottle of Super 300 from my local Advance Auto/Carquest today (only one bottle left), but haven't opened it up yet. Not sure where in Missouri you live, but maybe check out their website to see if your local store has one in stock or click on the "In Stock Nearby" link to see the closest store that might have a bottle.
Last edited by UtahYork; 02/20/2026 12:29 AM.