Building a Breathing System For Painting Aerothane
By: Ralph Shultz
When I was trying to decide what paint system to use to paint my Challenger II, I was soon confronted with several other concerns. It turns out that the decision of what paint to use was multi-faceted.
The following are some of the things people were telling me I had to consider:
As this article is about my building a fresh air delivery system, I won't go into my decisions concerning the questions above except to say I wanted to use the Aerothane paint system. The Aerothane paint REQUIRES that the painter be supplied with clean fresh breathing air. This is critical because the paint and catalyst mixture can do serious damage to the painter's lungs.
Fresh air delivery systems can be purchased on the retail market. But, being from the old school, I chose to build/assemble my own. Keeping in mind that the air intake must be located in an area of clean fresh air some of the things/parts I had to produce and procure were:
The fan was placed on the house roof next to and high above the paint booth. This put it well away from the booth interior and the damaging paint-contaminated air. Several lengths of 4” PVC pipe and fittings were used to connect the fan to the booth sidewall. From there to the spray gun, a 1.25" flex tube was routed. The following views reveal just how this was done.
Click Photos to Enlarge
The finished painted airplane.
What I did is just one way to approach building a breathing system. There are as many other ways as your imagination can conjure up. I must say putting this system together was very satisfying; I would definitely recommend anyone thinking about doing his or her own thing on building a painting system to do so. Just remember to have fun with it and be safe with whatever you do.