Originally Posted by robmurphytally
Seems the biggest issue will be getting enough ventilation air space in a small room. Think I'll keep the space for the shop and forgoe the finish room.
The space you mentioned is not nearly big enough for a spray room in my opinion but would make for an excellent 'drying room'. If you kept it clean and sealed it up right - You would have a safe place to put stuff while it was drying while you went back to work in the shop.
Some finishes take longer than others to dry and there are other times when you may screw up (I have never done this myself - only read about it in magazines
) and 'need' to add retarder to an otherwise 'fast drying' finish because there was way too much humidity going on and you had to slow things down to keep from making a mess.
My last 'accident' took a good 2 to 4 hrs to dry to the point that it was 'safe' to handle and move around. That was with me messing up with lacquer... Poly takes even longer to dry than that in some cases...
If you had a special designated area like you were thinking about - You would never have to stop 'working' in the shop and making dust while you had other things off in that special room drying.
I have finished a pile of stuff right in the middle of the shop and it CAN be done successfully but that can sometimes take a little more effort (and time) to pull off.
Even if you have a fairly decent spray setup that puts 'most' of the finish on the work piece and not just spitting it out as overspray in the air - You can only go so far before you need to take a break lest you end up with a huge cloud and overspray on EVERYTHING inside the shop.
Yes, You can rig up fans and such to pull that overspray out but you have to be careful about how fast you move the air lest you start moving dust and stuff around that can then settle in your finish.
You also have to consider that if the fan is pushing the overspray outside (and pulling in fresh air from someplace else) and you are finishing in the winter - You just pulled out all the air that you spent money to heat.
If I have a small something to finish and want to finish it in the middle of the shop I will generally use the best gun I can (high transfer efficiency) and give the air an hour or two to 'settle' before starting.