smart51
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| posted on 4/2/10 at 10:08 PM |
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How long should I leave my paint before polishing with G3?
I've finished painting the nightmare bumper skirt and have flatted about half of it with 1200 grit. It looks nice, finally, but I suspect the
paint is still a little soft. The colour coat is Halfods mixed to colour aerosol which actually went on very nicely, and is an excelent colour match.
How long should I leave it to harden before putting the polishing mop and Farecla G3 on it?
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55ant
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| posted on 4/2/10 at 10:11 PM |
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as long as you can, especialy if its in a cold garage, 24 hours would be ok.
away from cars, now cycling and building TT bikes
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ashg
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| posted on 4/2/10 at 10:16 PM |
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I would leave it a good couple of weeks if its out in the cold.
after that you will be fine to polish it up but you need to leave it a lot longer for all the solvents to work their way out before you put any wax
on it.
Anything With Tits or Wheels Will cost you MONEY!!
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Exocet (Finished & Sold)
New Project (Started)
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YODI
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| posted on 4/2/10 at 10:17 PM |
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24 hours?? Dont be silly mate, if its just painted and its sitting cold leave it at least 2 weeks I'd say
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smart51
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| posted on 4/2/10 at 10:22 PM |
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It's in my basement which is heated but not very exactly hot, maybe 15° or so. Its warmer than the garage by a long way.
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Madinventions
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| posted on 4/2/10 at 10:33 PM |
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The longer the better... A couple of weeks sounds about right to me.
Ed.
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Steve Hignett
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| posted on 4/2/10 at 10:39 PM |
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As above, just give it the thumb nail test...
(in a discreet place obviously!!!)
Would of thought that a week is a minimum IMO, but you will feel it straight away if you start polishing too early...
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RAYLEE29
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| posted on 4/2/10 at 10:44 PM |
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worth waiting till it hardens off properly or youll burn through and have to start again leave at least a week before compounding paint work and
patience go hand in hand
Ray
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boggle
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| posted on 4/2/10 at 10:44 PM |
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2 weeks is good....
would be better if you where to wet flat with 2000....1200 is too course imho....
just because you are a character, doesnt mean you have character....
for all your bespoke parts, ali welding, waterjet, laser, folding, turning, milling, composite work, spraying, anodising and cad drawing....
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Steve Hignett
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| posted on 4/2/10 at 11:01 PM |
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In response to the above post.
1200 is great for what it's for, 1600 and 2000 is better for obvious reasons...
You can get 3000 in discs (for attachments to polishers) which means they feel v good when folded in half and used by hand, and spread the loads of
your hand/fingers very well. I know a lot of people suggest only using blocks, but I'd rather do it by hand...
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smart51
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| posted on 4/2/10 at 11:05 PM |
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thinking about it, I have some 1500 grit tucked away so I might as well use it. I've never seen finer than this in a shop.
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Mark Allanson
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| posted on 4/2/10 at 11:05 PM |
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We leave panels a good 30 mins to an hour before polishing, without an oven I would leave six hours to be on the safe side. If left too long you
cannot get the surface to burnish as it is too hard
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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blakep82
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| posted on 5/2/10 at 12:46 AM |
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couple of weeks. with the car left in daylight as much as possible
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smart51
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| posted on 5/2/10 at 08:17 AM |
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quote:
Originally posted by Mark Allanson
We leave panels a good 30 mins to an hour before polishing, without an oven I would leave six hours to be on the safe side. If left too long you
cannot get the surface to burnish as it is too hard
Isn't it strange that your advice is the opposite of everyone elses (and my gut reaction) and yet you're the professional painter.
I'll start to polish as soon as its flatted then. Cheers.
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Bluemoon
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| posted on 5/2/10 at 01:38 PM |
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quote:
Originally posted by smart51
quote:
Originally posted by Mark Allanson
We leave panels a good 30 mins to an hour before polishing, without an oven I would leave six hours to be on the safe side. If left too long you
cannot get the surface to burnish as it is too hard
Isn't it strange that your advice is the opposite of everyone elses (and my gut reaction) and yet you're the professional painter.
I'll start to polish as soon as its flatted then. Cheers.
It may depend on the exact type of paint used. The professional shops use consumables that are quick drying/hardening for obvious reasons (customer
want's that car back, and there is little room to store lots of cars!)..
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smart51
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| posted on 5/2/10 at 02:46 PM |
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quote:
Originally posted by Bluemoon
quote:
Originally posted by smart51
quote:
Originally posted by Mark Allanson
We leave panels a good 30 mins to an hour before polishing, without an oven I would leave six hours to be on the safe side. If left too long you
cannot get the surface to burnish as it is too hard
Isn't it strange that your advice is the opposite of everyone elses (and my gut reaction) and yet you're the professional painter.
I'll start to polish as soon as its flatted then. Cheers.
It may depend on the exact type of paint used. The professional shops use consumables that are quick drying/hardening for obvious reasons (customer
want's that car back, and there is little room to store lots of cars!)..
That makes a lot of sense. The paint will be 48 hours old by this evening and there's still a bit of flatting to do. I'll see how I go.
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Angel Acevedo
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| posted on 5/2/10 at 03:59 PM |
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All the painting in my car is done by a relative, and he suggests to wait three to four weeks.
After that, the car gets a good wash and he polishes to perfection....
Not the one in the Finising Forum Though!!! 
Beware of what you wish.. for it may come true....
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Mark Allanson
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| posted on 5/2/10 at 07:29 PM |
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I think a lot of the confusion is historical.
Synthetic could not be nibbed at all as it is too rubbery for months
Cellulose. Can be nibbed as soon as it is dry, but must not be wax polished for 4 weeks as this would seal the surface and stop the full drying
process
2K. Can be nibbed as soon as it is col from the oven, and polished immediately.
I could go on for ages, about acrylic, TPA, TSA, etc but you would never use them
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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stuleah
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| posted on 5/2/10 at 09:49 PM |
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quote:
Originally posted by Mark Allanson
We leave panels a good 30 mins to an hour before polishing, without an oven I would leave six hours to be on the safe side. If left too long you
cannot get the surface to burnish as it is too hard
as a bodyshop owner and paint sprayer i agree with mark.
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smart51
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| posted on 5/2/10 at 10:33 PM |
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Well I've polished an area and let it dry. It is lovely and shiny, except for those tiny sand paper marks in a couple of places. I need to go
over it with the 1500 again I think.
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stuleah
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| posted on 7/2/10 at 10:21 PM |
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just be careful you dont polish through. there is nothing more anoying.
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