Re: painting the car what heat should i use
[Re: Haibach Boys]
#863998
11/27/10 01:38 AM
11/27/10 01:38 AM
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Joined: Feb 2010
Posts: 18,493 Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
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Quote:
i have sprayed with a wood stove and heavy ventalation, ive sprayed a 37 using a propane furnace, and i recently painted a s-10 mini truck useing a salamander...just make it always have fuel,a and is cranked on high so it wont shut off and the puff of smoke doesnt come out, and if you gatta fill ed wipe your hands with a lil thinner and rock and roll again.
???????? My local paint guy says the temps have to be above 60 degrees. I use a propane tank at each end of the car with a diffuser head to widen the heat pattern. Good luck.
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Re: painting the car what heat should i use
[Re: Stanton]
#864002
11/27/10 09:30 PM
11/27/10 09:30 PM
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Joined: Feb 2010
Posts: 18,493 Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
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Quote:
Anything burning propane will put a ton of moisture into the shop. Water is a byproduct of propane.
Really? I always felt dried out after being in a propane heated environment. My eyes were dry and my fingers too.
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Re: painting the car what heat should i use
[Re: RUNCHARGER]
#864005
11/27/10 11:42 PM
11/27/10 11:42 PM
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Joined: Oct 2010
Posts: 606 Montana
Yancy Derringer
mopar
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mopar
Joined: Oct 2010
Posts: 606
Montana
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I serviced HVAC for a number of years ANY salamander type device fired with ANY fuel generates large amounts of moisture. ANY direct fired device of this nature is an explosion hazard. I simply cannot believe how many people seem to get away with this. It's only a matter of time....... Even an electric furnace CAN be an explosion hazard, because of arcing in the controls, as well as the possibility that the elements may get hot enough to reach an ignition temperature. (Think of some portable heaters you've seen--red hot elements) I believe the ONLY safe heating device for a paint booth is: Electric that has appropriate shielded elements, think in terms of your baseboard heater. HOWEVER the controls must be spark proof as well Gas/Propane/ Oil that is in the form of a furnace type device with a HEAT EXCHANGER so that there is isolation from the combustion and paint booth. Additionally, something like a furnace MUST be OUTSIDE the booth. An atmospheric burner, taking in polluted air into the burner, presents not only an explosion/ fire hazard, but..... any chemicals in the air ALSO hasten the destruction of the heater. I've worked on equipment in places like laundries (bleach and soap) beauty parlors--various chemicals, photo/ print type shops--all KINDS of chemicals, and ANY of these types of chemically laden environments are VERY hard on the equipment, because when you HEAT or BURN a chemical, it usually makes the reaction much more severe The thing is, the explosion hazard does NOT only come from vapors like paint thinners, etc in the air. The hazard ALSO comes from the DUST hazard. Various kinds of dust are very explosive. (Google stuff like wheat explosions) http://www.osh.dol.govt.nz/order/catalogue/archive/dustexplosions.pdfI'm no expert on the electrical code, but paint booths are required to be wired in terms of exposion proof devices and fixtures
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Re: painting the car what heat should i use
[Re: Yancy Derringer]
#864006
11/28/10 08:02 AM
11/28/10 08:02 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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anything that burns, water is the by-product. simple chemistry! any type of "fuel oil" gasoline, diesel, kerosene, liquid propane, natural gas, even wood... the hydrogen (H) in the item that is burning combines with oxygen (O) in the air, and you get H2O -- Water. the Carbon in the stuff you are burning produces CO and CO2...carbon monoxide--poisionus, and carbon dioxide--what we exhale. so yes, any propane, diesel, kersone type heater can produce lots of humidity. Unless, as mentioned, it uses a heat exchanger, and the damp, moist exhaust is vented outside, and the heat is kept inside...which is what most home furnaces do. which is why the air can be so dry. knowing the explosive hazards created by spraying a large amount such as an entire car, i think I'd want to wait until the ambient air temps were above 60 degrees rather than risk blowing my shop up, or spending big bucks on all the explosion proof heaters. small parts here and there, I wouldn't have a problem with though...so use the winter time to do your underbody, suspension parts!
**Photobucket sucks**
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Re: painting the car what heat should i use
[Re: 70Cuda383]
#864007
11/28/10 11:15 AM
11/28/10 11:15 AM
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Joined: Oct 2005
Posts: 708 Mechanic Falls, Maine
4BBodies
mopar addict
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mopar addict
Joined: Oct 2005
Posts: 708
Mechanic Falls, Maine
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I have a forced hot air furnace (Modine) in my garage, it blows very hot, dry air. My booth (seperate room) filters intake the air in the corner, it goes across the car, then out the fan. I crank it to about 80, and can usually get a whole coat on before I have to let it "catch up," the temp usually goes down very fast with the fan on. I never turn it off, but I do regulate fresh air in the room where the furnace is, by opening a window an inch or so. I close it to "catch up," then open it again when ready for the second coat. Works well, until the temp is below freezing, then I have to wait until Spring! I don't have a moisture problem, just the usual dust problems. But my furnace is a cocker! It came with the place, but the seller wanted to remove it when he sold the house. Nice try, but it was in the contract, lol!
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Re: painting the car what heat should i use
[Re: copchaser]
#864009
11/29/10 12:33 AM
11/29/10 12:33 AM
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Joined: Oct 2005
Posts: 8,873 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,873
Ontario, Canada
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Quote:
Really? I always felt dried out after being in a propane heated environment. My eyes were dry and my fingers too.
Keep in mind we're dicussing flamethrower or radiant type heaters where there is no heat exchanger or exhaust to the outside.
Propane ( C3H8 ) will burn completely to form water and carbon dioxide; C3H8 + 5 O2 ---> 3 CO2 + 4 H2O
Since there is no ventilation the moisture will condense on everything that is colder than it is. Looking at the above equation, imagine burning a 20 pound cylinder of propane in about 3 hours where 57% of the byproduct is water. That's 11.4 pounds of water or close to a gallon and a half !!!
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Re: painting the car what heat should i use
[Re: Kern Dog]
#864011
11/29/10 10:51 AM
11/29/10 10:51 AM
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Joined: Oct 2005
Posts: 8,873 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,873
Ontario, Canada
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Quote:
Man!!! ALL THESE EQUATIONS!! I never studied Chemistry.
Neither did I ... I just "googled" it !!!
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Re: painting the car what heat should i use
[Re: Stanton]
#864014
11/29/10 04:25 PM
11/29/10 04:25 PM
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Joined: Nov 2003
Posts: 6,519 Buffalo, NY U.S.A.
MrNormsTA
master
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master
Joined: Nov 2003
Posts: 6,519
Buffalo, NY U.S.A.
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Quote:
So you're saying you highly recommend ignoring all the warnings and go ahead and use a flamethrower ?!?!
I've used a tablesaw for years without a guard so I don't think anyone needs a guard. I've used a grinder for years without safety goggles so I don't think anyone needs safety goggles. I've never turned off the power when working on electrical outlets so I don't think anyone needs to turn off the power. I've been in boats loads of times without a life preserver so I don't think anyone needs a life preserver. Right !?!?!
You forgot I've pulled my 24 ft enclosed with my V6 Ford Escape so who needs a 3/4 ton work truck.
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Re: painting the car what heat should i use
[Re: MrNormsTA]
#864015
11/30/10 02:56 PM
11/30/10 02:56 PM
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Joined: Oct 2005
Posts: 8,873 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,873
Ontario, Canada
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Quote:
You forgot I've pulled my 24 ft enclosed with my V6 Ford Escape so who needs a 3/4 ton work truck.
Fully loaded, uphill, in a Buffalo snowstorm no doubt !!
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