My home made spray devise is a hand held fire extinguisher bottle with an inner tube filler valve installed on it for compressed air charging. The wand is a 6 ft long 3/16" brake line with small holes drilled in the end and attached to the extinguisher discharge trigger. I used this unit successfully on my previous C150 wings, but I was spraying ACF-50 which is much thinner than the aviation Corrosion X. With the X alcohol mix, it at least gave me a "dispersed ooooze" from the wing strut attachment point to the wing tip area. I had the wing on a rotating rack and could position it every 90' for dispersion and penetration. For the rest of the wing I used a siphon sprayer. With the next such project, I'll go back to using ACF-50. The Corrosion X is foul smelling stuff. That means it must work, right ????