is this true about paint? - Exterior Forum

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is this true about paint?
Sunday, March 13, 2005 4:33 PM
i plan on getting my car painted by a fellow org member within the next couple weeks. i live in ohio, and the weather is still shatty. one day it can be 60 degrees and the next its 18 degrees. no joke. well, my question is, a friend of mine who's uncle owns a body shop says he cannot paint her car until the temperature is above 55 degrees in order for the paint to lay and stick correctly? is this a myth? i dont want to get the car painted and waste the org memeber time and my money. should i wait til it gets warmer or is everything ok?

myth or not?

should i wait or will it be ok?

thanks




Re: is this true about paint?
Sunday, March 13, 2005 4:52 PM
what is he paintin' the car outside? if its inside, which it should be then who cares how cold it is outside. the car will be indoors when painted and then maybe put under some lights to help the paint dry quicker. it shouldnt matter



Re: is this true about paint?
Sunday, March 13, 2005 6:22 PM
No it's not true as far as i know.. the body shop is doing a friends car and it snowed here that week he did it


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Re: is this true about paint?
Sunday, March 13, 2005 6:46 PM
They paint vehicles all year round up here in Canada, so I would have to say its a myth.
Re: is this true about paint?
Sunday, March 13, 2005 7:11 PM
myth, UNLESS he's painting it In an un A/C or heated shop. Which is bad because if the paint fluxuates then it will get orange peel.

When you mix paint a reducer and an activator is added
The activator IS what causes the paint to harden(dry) They make 3 diffrerent kinds.
Theres Fast For Colder temperatures because cooler weather causes the paint to dry slower(causing a large amont of dust and orange peel to get into the paint)
Theres medium for normal(optimal) temperatures 55-70
Then theres slow for painting in hot temperatures, it slows the paint from curing to quick so it dosent crack.

Hopefully he's using a medum reducer, which is what body shops that have paintbooth bakers use because they have a controled temperature, but if he dosent have a paintbooth then I hate to say theres a VERY small chance you WONT have tons of dust and dryspray in your paint. and the Temperature has to be just right because you cant bake the paint.

Now the reason there will be so much dust in the paint is because simply enought its not in an AIR SEALED booth and it will be wet for a while, so everything around can get on that car.
and the Reason for dry spray is because in a paintbooth a very slight wind(downdraft) which is produced to flush away all overspray and keep it from landing on the car.
So when you paint with no downdraft it lets the overspray land on a car.

Now Ive been asked if putting a fan over the car will prevent this.
NO, because in a paintbooth its SEALED so the air can ONLY go around and UNDER the car into the duckt under the car
With just a fan over the car it will just blow more dust into the car because its Pulling air from the room not a booth thats filtered and the wind will just blow onto the car and spread around the car instead of being "sucked" under the car.

Hope this was a little helpfull im not gona spellcheck so i know i missed alot lol.

Overall Yea He can paint it, it does have to be 55+ and he has to use a medium reducer if he DOSENT have a paintbooth,
If he does(maybe there heater/baker died) then yea still has to be 55
but i will warn you no paintbooth=trash and dryspray in the paint.






Re: is this true about paint?
Sunday, March 13, 2005 7:21 PM
Temperature fluxuation does NOT cause orange peel. Orange peel will occur no matter what temperature the car is, or what kind of clear you use. You will ALWAYS get some orange peel with a paintjob, and the only way to get rid of it is to wetsand and buff.

Cooler temperatures will just cause the paint to settle at slower rates.




Re: is this true about paint?
Sunday, March 13, 2005 7:52 PM
def you dont want to paint a car in the cold, (under 55 is def too cold), but if indeed it is being painted inside which im sure it is then surely they will have a heater or something to heat the building to the right temp, if not then wait til its warmer trust me, youll wish you did, later



paint will last longer if painted at the right temp, sure it will work at low temps but i mean for real, surely they will be painting it inside witha heater no matter the case, hope this helps


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Re: is this true about paint?
Sunday, March 13, 2005 9:44 PM
thanks for all the feedback everyone. i dont know much about paint, so this is very informative





Re: is this true about paint?
Monday, March 14, 2005 4:19 AM
I thought you could get orange peel if you don't get the right hardner in there? Like if the paint starts to dry before it starts to run into itself, then you get orange peel. That would be attributed to temp right? Of course if you have the right hardner in there it might not happen.



Re: is this true about paint?
Monday, March 14, 2005 8:01 AM
Orange peel will occur anyway period. It has nothing to do with temperature!!!! You can have conditions absolutely perfect and it will still happen! The only way to get rid of it is to wet sand and buff.




Re: is this true about paint?
Monday, March 14, 2005 12:03 PM
yep, orange peel will show up nomatter what time of year you paint the car or enviroment... and the only way to get rid of it is what fallen angel said wet sanding it and cleaning it but you can kill them both by using soapy water when you sand it.... i think that guy is BS you, find a new painter

Re: is this true about paint?
Monday, March 14, 2005 12:42 PM
my car was painted about 3 weeks ago -20 outside but inside the shop was hotter day after it was painted out the body shop and home it was lyin at -20 outside no shatters wat so ever it just needs to be dry before u bring it out


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Re: is this true about paint?
Monday, March 14, 2005 4:52 PM
thanks everyone. yea, the painter is a good guy and it sounds like he knows what he's doing (the guy thats gonna paint my car, not the one who told me that it cant be done below 55). so we'll c how things turn out. his work is covered for a year, so if it doesn't work, i'll just have him redo it.
Re: is this true about paint?
Monday, March 14, 2005 5:02 PM
streetfire97 wrote:yep, orange peel will show up nomatter what time of year you paint the car or enviroment... and the only way to get rid of it is what fallen angel said wet sanding it and cleaning it but you can kill them both by using soapy water when you sand it.... i think that guy is BS you, find a new painter
basically you are right.....but alot of it depends on techniqe and what product you are using.......I also like to spray at 70 degrees.......



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Re: is this true about paint?
Monday, March 14, 2005 5:20 PM
Not true, orange peel is usually caused by improper gun setup, wrong reducer choice or not reduced enough, too low of pressure, wrong distance from the surface. Urethane may have a very little orange peel naturally, but alot of the clears will lay out pretty flat, but wetsanding and buffing is done to get it smooth if you do have orange peel. You will probably be buffing anyways, even the best downdraft quazzilion dollar booths you still can get some dirtspecks in the paint. I would not paint at 50 degrees, well I have before but not the best conditions. Hard to lay it out nice and wet and not have it slide. You have to be extra carefull. I don't really like using a fast activator/reducer either. 50 would be the bare minimum I would recommend painting at. Your better off waiting till the temp is around 65-75 with low humidity, and using a slow reducer or activator will give the paint more time to flow. You get too high of a temperature and lots of humidity and thats not good conditions to paint in either. Your freind's dad must have a really small shop, most spray booths are heated and can set the temperature in the booth. If you don't have a proper set up booth, don't have any open flames or pilot lights when painting. If overspray builds up you could be asking for trouble. I don't even like my air compressor kicking in when I am painting at home, even a light switch. Anything that makes a spark has the potential to ignite the flammable solvents in the air. Get it really hot where your painting, shut down the heater, and make sure no solvents are still floating around if you turn on a heater or pilot light, or anything else with an open flame.

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