Q: Is a 7700 cfm fan adequate for a booth the size of the one in your video?
A: In terms of power, yes; a 7700 cfm fan is adequate for that size booth, but that assumes a small exit port paired with a well designed booth. Remember, a booth is a funnel that channels a [...]
Q: The only information I found on spray booths were for totally enclosed rooms, and indicated you had to use non-explosive fans and light fixtures if you are spraying solvent based finishes.
A: Actually, that has nothing to do with them being totally enclosed rooms. Open face booths share the same regulations. It has to do [...]
Q: How big a fan will I need for a garage shop spray booth.
A: Though they have no legal sway in a garage shop, OSHA mandates 100 cfm (cubic feet per minute) per square foot of filtered booth wall, and in my opinion, those are good guidelines to follow. In other words, if you have [...]
Q: I want to put a spray booth in my garage shop to spray oil based paint. Is it necessary to use an explosion-proof motor for the fan?
A: You are asking a legal question, not a finishing question, and I am not a lawyer. My guess is that you want to know if you will [...]
Q: Is there a safe way to set up a separate room for spraying shellac? I was going to put a fan with a TEFC motor and exhaust through the window to the outside, and cut a hole in the room door for intake air.
A: There’s a bit more to it than that, but you [...]
Q: I have a room off my shop that I want to set up as a spray room. I only use shellac and spray it. Is shellac highly explosive when sprayed?
A: Explosion potential is measured by LEL and UEL, or lower explosive limit and upper explosive limit, a measure of the amount of any solvent [...]
I was saddened to hear that a member of my own guild lost his shop and tools last month [...]
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