On 2016-03-26, wrote:
On Fri, 25 Mar 2016 21:18:16 -0700, Larry Jaques
wrote:

On Thu, 24 Mar 2016 09:28:30 -0500, Ignoramus9970
wrote:

On 2016-03-23, Larry Jaques wrote:
On Mon, 21 Mar 2016 20:02:25 -0500, Ignoramus3828
wrote:

I need to spray used oil on a number of truck frames etc.

I would like to know what is a good solution, preferably compressor
driven, that would make a good spray pattern and preferably not too
much overspray.

I am not interested in opinions about advantages and disadvantages of
used oil spraying, I just want to know how to spray it.

Besides it probably being illegal in Illinoise and salt/water/dust
would likely quickly erase it from the frame, MOST people use a
rubberized undercoating for frames and underbodies, Ig. Why not
recycle the oil and steamclean + undercoat your trucks, for a
once-in-a-lifetime fix?

That stuff does not stick to rust. Oil does stick to rust.

It does stick to rust, quite well. It's just that thick rust flakes
fall off.


Rust continues under any coating. Rust does not continue under oil.

Undercoatings are hard to repair. Oil film is easy to repair.

Go for whatever is your pleasure. shrug


Otherwise, what about using an existing aerator spray tip and
adjusting the air pressure to control the overspray? Olive oil can be
sprayed with a hand-pump and regular paint spray can nozzle. Grab a
magnifying glass and look at pressure washer or paint gun tips for
clues into spray containment. It's possible that an HVLP paint
sprayer might work, so you might give that a try, too.
http://tinyurl.com/3muqz79


I dislike the oil spray concept from an eco standpoint, and I'm
surprised it isn't illegal. Where's the freakin' EPA now? Watch them
fine a person $50k for leaking a quart of oil onto the ground, but
they let 1,000,000 people leak oil onto the street and flow into lakes
and sewer systems? Go figure!


I am not a lawyer and I do not provide legal advise.

I just want my trucks not to rust from the bottom.

Let us know how well it works.
Up here in the salt/rust belt we know what works. Rubberized
undercoating is one product that does NOT work. Oil based products
like Krown and RustCheck do.

Most of the "oil based" commercial products today are a vegetable
based oil today, which tends to wash off more quickly.
Raw linseed oil is a product that has been used successfully,
"wool oil" - aka Lanolin is also used commercially. (one example is
"fluid film")

Hydraulic oil lasts about a year. Used hydraulic oil is nice and
clear, not like black used motor oil. Hydraulic oil also clings better
and has anti-rust additives that are added to resist internal
hydraulic corrosion.

i