Advise on Spraying in Unheated Garage during Winter

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Forum topic by irish620 posted 01-30-2012 05:58 PM 977 views 0 times favorited 1 reply Add to Favorites Watch
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43 posts in 2330 days

01-30-2012 05:58 PM

I just picked up a barely used Capspray CS9100 on Craigslist with 2 guns, unused accessory Needle kit and extra check values/o rings for $450. I’ve used an HVLP before but under better circumstances. I live in Pittsburgh and the garage is not heated. I want to clear coat a twin walnut captains bed i made my 2 yr old son. A waterborne
finish, something from Sherwin Williams?, seems to be the best way to go but i am struggling with how to handle the temperature and over spray in a unheated garage ?

My idea is to put up temporary tarps to control over spray, but do i heat up the garage ( MR. Heater ), prior to spraying of course, only to open the garage door while spraying and let in the cold air ? I know you have to vent the fumes of both the sprayer and heater but how do i do both and maintain a descent finishing temperature ?

Thanks guys for our thoughts !

1 reply so far

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388 posts in 2352 days

#1 posted 01-30-2012 06:14 PM

You are unfortunately iin a rock and hard place situation. First get a GOOD RESPIRATOR, not a particle mask. If the sprayer uses an induction motor and not a brush type you may be OK. But heat the space up to maybe 75-80 degrees then shut off the Mr. Heater. I assume your garage is detached. Your only other choice is a water borne product to alleviate the danger of combustable vapors. Direct flame heaters and ANYTHING aerosol is bad news. A sealed combustion direct vent unit heater is the way to go if you plan to do any future finishing in your garage in cold weather. Waiting until it warms up again is the only other option. I know you’d hate to “pooch” this finish job. I feel for ya living on the “North Coast” as I do. Winter SUX!


-- OK, who's the wise guy that shrunk the plywood?

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