How long til paint is safe to be released into the elements

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verde
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Post Sat Dec 15, 2012 6:28 pm

Car is almost in the school ready for its final welding, body kitting and painting. Im just wondering how long its going to have to stay in there before its safe to be rained on etc...
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polsta
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Post Sat Dec 15, 2012 6:31 pm

after what paint ? as soon as you want, but ideally the longer left the better to let paint really cure beofre exposing to elements and stone chips etc
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Post Sat Dec 15, 2012 6:34 pm

I've seen cars put out into the rain after they've come out the oven. Not ideal but doesn't really cause any damage.
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Post Sat Dec 15, 2012 7:34 pm

Is the paint being baked on in an oven?

If yes then water/rain wont effect it at all.
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maxfield
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Post Sat Dec 15, 2012 9:05 pm

Yes, baked on.

Work next to a body/bodge it shop.

Seen many of car in filler outside in the rain and this week in frost
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verde
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Post Sat Dec 15, 2012 9:14 pm

Its getting sprayed at home. It wont be baked. My dad used to spray bikes and stuff so hes having a go. Wer building a booth etc. Itl probably be indoors for a week after paint so im sure thatl be long enough
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maxfield
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Post Sat Dec 15, 2012 9:43 pm

Yeah that should be fine.

I'm assuming you'll be heating your booth?
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verde
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Post Sat Dec 15, 2012 10:03 pm

Yeah wel have a few heaters on the go. Few hallogens and a....magic devil, little devil? Gas one. It should be fine.
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maxfield
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Post Sat Dec 15, 2012 10:07 pm

Depends what gas, I'm sure butane gives out silicones.

Think propane is the one to use.
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verde
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Post Sat Dec 15, 2012 10:11 pm

Il mention it to dad. Im not sure what the little devil runs on tbh.
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bss325i
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Post Sat Dec 15, 2012 10:12 pm

maxfield wrote:Yes, baked on.

Work next to a body/bodge it shop.

Seen many of car in filler outside in the rain and this week in frost
I was asking verde.
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Post Sat Dec 15, 2012 10:15 pm

verde wrote:Il mention it to dad. Im not sure what the little devil runs on tbh.
it will be propane, and it will blow shite/dust into the paint
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Post Sat Dec 15, 2012 10:19 pm

you taking it to bare metal??

Can't wait to see the end results :mad: If your guna leave the engine bay black, i would spray the engine covers the same as the car.
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verde
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Post Sat Dec 15, 2012 10:29 pm

Naa just buffing it flat. Its costing like 300 quid if that. Its suppppper low budget, im not expecting a great job. anything is better than how it currently is. And yes I think il do the engine and intake the same colour. Im also colour matching the centre of the wheels.

Good point topless. Better just stick with halogens
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Post Mon Dec 17, 2012 2:34 am

Just dont point the propane at the car n itl be cool , your heating the booth not drictly the car ;) . And if your creating a booth it should be free of dust ect anyways :) .
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Post Mon Dec 17, 2012 2:45 am

Best of luck Verde!

If it doesn't work out... do this!!



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Post Mon Dec 17, 2012 5:44 am

Holy jeez ! That golf :o ! , ive recently got a mk3 golf gti and paintwork shite , rattler matt black painted outside will do the job for me lmao!
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Post Mon Dec 17, 2012 7:00 am

Verde have you not thought about doing all the prep and then just paying a pro to spray it, then taking it back home to re build, for what it will cost you anyway to build and heat the booth and buying all materials, the actual "spraying" doesn't take too long it's all the prep and overall work that builds up costs, if you did it all it might not cost much more to pay for the spraying and get a much nicer job, much better in the long run
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verde
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Post Mon Dec 17, 2012 8:11 am

Im not building a pro fucking booth haha. Im building a framework covering it in sheet plastic and heating it. Itl cost 20-30 quid maximum. And I considered that iwith the white car...rawing it back to bare and laquering it...maybe burning it so theres nice metal rainbows etc.... But im sure itl look reasonable. The cars all stripped and almost ready. Pics. In my build thread later
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Post Mon Dec 17, 2012 12:00 pm

Cars in primer or filler should never be left in the rain, a car painted and baked can put out in the rain after a full cool down period circa 2 hours, personally when ive painted a car I demask as soon as it clicks of bake and leave it 24 hours before I flat/polish or even stick it in the rain, if im piano coating it I tend to leave it 3 days before flat/polish or stick it outside. Paint takes time to breath after force drying (baking) generally if im doing somthing special ill 1500 it 24 h after , apply 2 20% thinned laqure coats @ 50% heat bake (30 degrees) then 5 days later 2000 and 3000 soap flat and 4 stage polish.

I personally find 30c temp is a perfect temp and leave your paints in the room to get to room temp, and leave the painted car over nite at room temp it wont tighten up and go orange peely like force drying at 60c, give it a good wet flat with 1500 and get some trizact pads give it a real good trizact wet flat, and use 3m green top then yellow top, miles better than ferecla compound.
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Post Mon Dec 17, 2012 3:27 pm

Nato_e30 wrote:Cars in primer or filler should never be left in the rain, a car painted and baked can put out in the rain after a full cool down period circa 2 hours, personally when ive painted a car I demask as soon as it clicks of bake and leave it 24 hours before I flat/polish or even stick it in the rain, if im piano coating it I tend to leave it 3 days before flat/polish or stick it outside. Paint takes time to breath after force drying (baking) generally if im doing somthing special ill 1500 it 24 h after , apply 2 20% thinned laqure coats @ 50% heat bake (30 degrees) then 5 days later 2000 and 3000 soap flat and 4 stage polish.

I personally find 30c temp is a perfect temp and leave your paints in the room to get to room temp, and leave the painted car over nite at room temp it wont tighten up and go orange peely like force drying at 60c, give it a good wet flat with 1500 and get some trizact pads give it a real good trizact wet flat, and use 3m green top then yellow top, miles better than ferecla compound.
That sounds very like how my shell is being painted. Do you leave the car standing for a week or so after primer to let it all sink a little (if it sinks at all) before a final rub down?
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Post Mon Dec 17, 2012 3:44 pm

My painter leaves it 3 weeks or so in primer to really settle, then having another look at it, but with regards to the above, I don't know much about painting but, is it good practice to have to be taking wet n dry to run down freshly painted paint ? Thought the idea was to get a flawless finish with the paint skill?
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Post Mon Dec 17, 2012 3:45 pm

Every little helps pal I do classic resorations and the final primer coat (we used to 3 coat prime each time and dothis 4 times, prime leave a week 400 flat, prime leave a week 500 flat, prime leave a week 500 flat, prime leave a week 1000 wet flat) then paint. Longer you leave between what you do the better, although when youve laqured it flat it (1500 wet) panel wipe the residue off and leave it afew days then trizact and polish it this leaves it enough time to breath if you polish right away you may have it healing back up and itl show buffing/ flatting marks and when the paint tightens up can go orange peely,
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Jozi
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Post Mon Dec 17, 2012 3:56 pm

I think my guy will be leaving mine for up to 2 weeks before he flats it and primes it again. He uses lead though rather than filler where ever there was a lot needed (welded area's especially).
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Post Mon Dec 17, 2012 4:27 pm

Yes thats good I welded my e30 rear archs on and lead'd them then just finished in gold top 4 years and its stil not rusted through :)