Classic cars forum & vehicle restoration.

[buzzy bee]

Hi

How do you get rid of paint runs?

Obviously the answer is to not cause them to start with, but they are there, so how is best to rub them out, without rubbing through the sourounding paint?

Do I rub that area down and paint it again?

Got a few small ones and one ruddy bad one!

Cheers

Dave

[Phil - Nottingham]

If the paint has properly hardened just rub down (on a block) wet with 240 then 360W/D follwoed by 600 then 1200. Polish up with rubbing compound and then T cut etc.

This works on celly,synthetic (coach or 1/2 hour laquer) and 2 pack. If not fully hardened it will pull it off
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Rover P2
Rover P4
Rover P5 & P5B
Land Rover S2 & S3
Morris Mini Traveller Mk2

[buzzy bee]

Hi

I have just painted it with 2 pak, so will leave it for a while, and do some reasembly work, them sort it out, how long do oyu leave 2 pak to harden?

The runs are all on curved sections, not flat pannels, bound to be the case isn't it! is it just a matter of rubbing them carefully? Wet or dry?

Cheers

Dave

[Phil - Nottingham]

Give at least a week - must be wet sanded and use rubber block to bend to curved shape to ensure only high spots are removed - do not rush it.

If its a really thick run on 2 pack the pigments can separate so some shading may have to be rectified
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Rover P2
Rover P4
Rover P5 & P5B
Land Rover S2 & S3
Morris Mini Traveller Mk2

[SV8Predator]

If you have bad runs you are on a hiding to nothing trying to block them out. As has been said there will be pigment effects and no matter how careful you are it is highly likely you will rub through to the primer.

Best to flat them all out and paint the panel again. But do make sure you flat them right back or the new paint solvent will lift them again.
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2000 Jaguar XJ8 4.0 LWB
1974 Jensen Interceptor Mk III
1969 Jensen Interceptor Mk I

[buzzy bee]

Hi

I fear I will end up painting it again, but will have to try blowing a section in, as the whole pannel, would mean painting the entire things again to be honest, it is a pretty big thing.

Not to worry!

To add to the insult, I went to the paint shop and asked for celly, they said no use 2 pak, it is easier, everything about 2 pak seems harder to me anyway! At least if I need more paint I can take the can with the code on, and they will mix it up, or that is what I thought, but the dosey git hasn't written the code on! So will have to be colour matched again!

I think I will revert to coach painting with an enamel after this!

Will go in the morning, to find what has happened in the day light! Was going dark when I finished today.

Cheers

Dave

[oldgoaly]

paint nibs, they are small files that take off the high spots. Not to get to far off subject but my boy primed his 1st panel, I showed him the proper "move your body" not just your arm..... well as most 16 yr.olds would do he made a nice big arc..... so I told him "STOP!" run inside and get the scissors on the table, "hurry!" when he got back I told him "stand there..... when that run gets to the edge cut that sucker off!" Well I still get a chuckle out of that! My 1st couple of paint jobs were real good, then used Ditzler for the 1st time (used dupont before) a scissor came in handy for that job!!!! 1973 on a 65-67 corvair monza metalic blue paint. never forget that! tt

[ukdave2002]

Dave, I have a "paint run plane", which you adjust to shave most of the run off, and then compound back in the normal way, it s quick and ensures you just remove the "run"!

Dave

[Comrade-Paul]

Id go with the run razor too.
Shaves just the raised area (the run) leaving very little to be flatted & polished.
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Picture taken in 1960??

[buzzy bee]

Hi

Cheers, for the ideas, I will look into them, and might get one of the run cutter things, handy to have anyway!

Cheers

Dave

[Gaz]

[SV8Predator]