Yes, but not too thin. Another idea is to get a better quality gasket than what comes with the pump. Those cheap paper gaskets always get some #2 Permatex when I do them.Thanks for the replies. Dang, really wish I could get my hands on Hylomar M, but it looks like I would have to order it. Unfortunately can't leave the truck all apart for that time frame. I'm leaning towards lightly coating the paper gasket with Permatex #2 since it seems designed for that, is operational in 4 hours, and can be picked up at my local parts store. Would this be, at least, comparable to using Hylomar?
When you used it, did you apply just a thin film onto the paper gasket?
This is kinda the route I've gone, too. Ultra Black works for 99% of stuff and is readily available just about anywhere incl places like Walmart.Permatex Ultra Black. I decided on this variety because it seemed as close to universal as you can get, aside from maybe super high heat. And places where you need a very specialized sealant/adhesive.
I also like the black because it doesn't stand out as bad as the blue/orange/red/gray underhood if it gets away from you. And let's face it, RTV and others act like pipe dope. It will get somewhere you didn't mean for it to. Almost every time.