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Fixing Overspray help please (paint prep)

Started by r2160 , Jul 19 2015 05:53 PM

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2 replies to this topic

#1 r2160

Forum Fixture

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712 posts

Name:Glenn
Location:sydney
Car:2/71 LC GTR, 4/71 LC 4 'S'
Joined: 20-May 09

Posted 19 July 2015 - 05:53 PM

All

I had the engine bay painted in 2 pack black (with a flattening agent) by a panel shop approximately 18 months ago.

I then had the outside of the car painted and the fool has oversprayed the engine bay. I took it to a new painter that I knew to fix, however he is now very sick and unable to do the job.

What he described he was going to do was use a paste with a scourer in the engine bay, scuff the paint and put a coat over the top of the engine bay to put it back to what it was. I am wondering if this is a good way to go? While I can paint, I am certainly not an expert in method.

I tried using polish and clay but it just isnt bringing it back to what it was.

After being stuffed around A LOT by so called professionals I am thinking I will just have a go myself.

thanks

Glenn

Edited by r2160, 19 July 2015 - 05:54 PM.

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#2 _LH SLR 3300_

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Posted 19 July 2015 - 08:13 PM

The method your painter has described to you will work involves using a grey scotchbrite with a product I know as "Scuff-stuff". It will work, but is very messy. Me personally, I would wet rub using P800 sponge backed sanding pads with a trigger bottle of water & old chamois to keep the mess to a minimum. Try to avoid rubbing through edges etc. Even with a flattening base added, if you apply 2K solids too heavy or don't give enough flash off time between coats, they can stay glossy after drying, so beware of this. If you're planning to do it in a garage or shed, the cold temps of late can lead to other problems too. Most any paint will run or stuff up in some way if applied to cold steel. l use heat guns & or lamps to bring the panels up to around 20-25c before painting. Another point I might add is all the good painters I've known & worked with universally prefer using a matt or satin clear over base instead of matting base in direct gloss 2K. I've seen the results on my own cars & am convinced this is a better method. Each to their own! Only trying to help so best of luck with it

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#3 _Bomber Watson_

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Posted 19 July 2015 - 08:52 PM

Yep ^

Or, as opposed to using a flat or matt clear over a base, or flattening agent, most paint mobs sell a directly mixed matt, satin etc 2k black, protec 604 is the one that I use, available in either flat, matt or satin. Works well.

Flattening agent in 2k paints is pretty hit and miss IMO.

Cheers.