Perhaps, but: I don't want to deal with avoiding permanently-affixed overspray on parts that don't want to be coated.
I also don't want to work with fasteners that are coated in bedliner: I'm already not having a fun time of things when I'm crawling under an old car doing some manner of repair. I want every possible advantage while I'm down there, and a well-stuck layer of bedliner seems like a big disadvantage.
As a point of comparison, stuff like Fluid Film [and the others that have been mentioned] can be applied to just about anything under the car that's metal (including bendy things like springs), and can be scrubbed off sometime later if it accidentally gets on body-colored parts using just soap, water, and some elbow grease.
Fasteners that are both rust-free and oily usually come apart like a dream when the time comes, and oily coatings that stay goopy tend to self-heal after being abraded by whatever the tires might kick up from the road.
Fluid coatings seem like the right set of tradeoffs in this non-ideal world compared to something like bedliner.
They're not perfect, but nothing is.
(Ideally, I'd live in a place that doesn't require driving through brine... but my world isn't ideal.)
I also don't want to work with fasteners that are coated in bedliner: I'm already not having a fun time of things when I'm crawling under an old car doing some manner of repair. I want every possible advantage while I'm down there, and a well-stuck layer of bedliner seems like a big disadvantage.
As a point of comparison, stuff like Fluid Film [and the others that have been mentioned] can be applied to just about anything under the car that's metal (including bendy things like springs), and can be scrubbed off sometime later if it accidentally gets on body-colored parts using just soap, water, and some elbow grease.
Fasteners that are both rust-free and oily usually come apart like a dream when the time comes, and oily coatings that stay goopy tend to self-heal after being abraded by whatever the tires might kick up from the road.
Fluid coatings seem like the right set of tradeoffs in this non-ideal world compared to something like bedliner.
They're not perfect, but nothing is.
(Ideally, I'd live in a place that doesn't require driving through brine... but my world isn't ideal.)