Re-spray

[Billman]

Hi,

I am looking for the best way to have a good bond between the old and the new paint during a car respray. So far i have only seen people going over the old paint, when in good condition, with scotch-bright or 1600 wet or so. Is there anything else? Mybe nitro solvent or something else?

thanks

@ot
Anyone has color codes for good looking white pearl colors? (Audi UrS4, Lancia Delta evo, lamborghini)?

[avants2turbo]

What condition is the exesting substrate in? Does it need sealing?

[Billman]

it has its dent that i am gonna fill but i am concerned about the rest. I mean the parts where it goes not need body filler. The question is do i need a some sort of primer for the old but in good shape paint or not?

[madpugger]

Audi S2 pearl is LOA9
There is also LOB9
RS2 Pearl white is I believe LOA or LO9, can't remember which.

They are three part paints, so a base, top and clear coats. It makes a huge difference the number of coats of the top coat.

[Billman]

Audi S2 pearl is LOA9
There is also LOB9
RS2 Pearl white is I believe LOA or LO9, can't remember which.

They are three part paints, so a base, top and clear coats. It makes a huge difference the number of coats of the top coat.

[Tonks4x4]

It will be fine to use a scotch pad, make sure you do edges and tight curves on the panel well. For any of the good paint that has orange peel already block it off with some 1500 followed by 2000. Use a squirty bottle with a drip of fairy liquid in it.
For any stone chips or silicones use a spreader card and push some stopper into them and then wet flat them off.
Once your colour is on you can again wet flat any imperfections and then apply your lacquer.
Again once the lacquer is on you can wet flat any areas that require it followed by a machine polish and a wax

Should look great when finished

[Billman]

Great thanks for the info guys!

@Tonks
when the color is on and i wet flat it, would it not need a base coat again before the clear coat?

[Error404]

only if you rub through, which is really easy to do on edges so avoid them if you can

[Gompa]

I wouldn't recommend wet flatting the base, simple one way strokes with 2000 grit (no less if possible) will be fine, definatly no flatting wet if base is waterbourne. A simple drop coat afterwards would help if you think you have rubbed a lot.
Are you going 3stage pearl? It's not something I would recommend for a novice painter as it's a difficult process

[Billman]

would not the wet rub cause the color to become whiter?

[Billman]

I wouldn't recommend wet flatting the base, simple one way strokes with 2000 grit (no less if possible) will be fine, definatly no flatting wet if base is waterbourne. A simple drop coat afterwards would help if you think you have rubbed a lot.
Are you going 3stage pearl? It's not something I would recommend for a novice painter as it's a difficult process

no it is for my g'friends Matiz that is going to be VW pepper grey metallic (U5/D7R). Right now I am in the process of filler rubbing and big dents repairing...

The pearl color is for an Aprilia Scarabeo ;-)

I also bought recently a DeVilbiss copy that is spraying really nice.

[Gompa]

would not the wet rub cause the color to become whiter?

In a 3stage pearl you would normally have a solid white base followed by a pearl coat with a high percentage of binder in (this helps the pearl by keeping it in suspension like metal flake in clear coat) once applied usually most of the binder evaporates out leaving the pearl film. If you get dirt in this coat and flat it you run a very high risk of rubbing through that film and leaving an area of just White base. This will be difficult to spot as your base dries to a matte finish and would only show once a clear coat had been applied ruining all the hard work. If you were to get a run it would also be game over and you would have to flat it completely out and re-start the process, bearing in mind too much of a pearl coat can make a panel look darker to an adjacent panel with half as much on. Welcome to the paint word ps good luck and post ur pics up once done

[Billman]

yes i will!!!! Problem is i dont have the before pictures (with the dents on) but i will post pictures of the car with the filler till the end.

[gripper]

In a 3stage pearl you would normally have a solid white base followed by a pearl coat with a high percentage of binder in (this helps the pearl by keeping it in suspension like metal flake in clear coat) once applied usually most of the binder evaporates out leaving the pearl film. If you get dirt in this coat and flat it you run a very high risk of rubbing through that film and leaving an area of just White base. This will be difficult to spot as your base dries to a matte finish and would only show once a clear coat had been applied ruining all the hard work. If you were to get a run it would also be game over and you would have to flat it completely out and re-start the process, bearing in mind too much of a pearl coat can make a panel look darker to an adjacent panel with half as much on. Welcome to the paint word ps good luck and post ur pics up once done

Blimey ! My Indigo Pearl Blue Coupe will be some fun and games then when she gets painted

[Billman]

Did the respray today to the daewoo matiz of my girlfriend and I wanted to ask how to remove the spray dust and small picks it got on the laquer?

Wet with a 1500 and then some teroson terowax?