UPDATE 11-30-2014
I recently decided to try a cheap airless paint sprayer to spray bulk Fluid Film and so far I’m pretty pleased with the results.
This method will be cheaper per vehicle than using spray cans of fluid film. But my airless paint sprayer doesn’t really have a way to get into places like frame rails, so I still may need some cans in the future to use with my 360 nozzle in the original post.
What I purchased:
-Harbor Freight
60446 paint sprayer for about $17
-One gallon of Fluid Film for $49 shipped
-Cheap ladle and kitchen spatulas to get the Fluid Film into sprayer's cup.
-Cheap store brand vegetable oil (soybean oil). This is what Fluid Film says you should use to thin the product.
What I did
The Fluid Film is pretty goopy and thick at our current temps (it’s late fall and chilly here) and right out of the box it sprayed in big globs.
I decided to try thinning it and heating it. I added a couple tablespoons of vegetable oil. Then I heated water on the stove and placed the cup into the water.
Don’t go crazy heating the water, it only needs to be warm, not scalding. You don’t want to melt the plastic cup or spray yourself with scalding Fluid Film.
This worked pretty well and sprayed in a pretty even pattern.
I later tried another cup without the vegetable oil and it didn’t seem to spray quite as well, but it still worked. It seems the smaller tip may also give a slightly better pattern if you have it thinned.
I have some experimenting to do as far as thinning/not thinning and which tip to use, but overall I’m pretty pleased with the early results.