Just a quicky. I'm preping the other halfs car for a respray. Is 600 grit wet'n'dry paper low enough to get a good key?
Might be ok for a key but I think you'll be able to see the marks in the final coat. I'd be tempted to go for 800 my self and a coat of
fastbuild primer on top of that flatted down before the top coat. I ai'nt no body builder mind and some one will be along to shoot me down
soon
I agree 800 or even 1200 for last rub down.
1200 not a bit high. Have used that before and the primer cracked.
Very depends what is going on top --
Tip -- Before keying give the panel a good T cut to take any wax off
T Cut has wax in it 
Rub it down with warm water and washing up liquid whatever grade you decide to use, then rinse it off.
Everyone is saying what grit to use without knowing what paint is being used.
2K paint, use 400 for solid colour or 600 for a clear over base (metallic or non metallic)
Cellulose is 400 for either
Synthetic use 800 for both.
Primer, 180 will do, proper highbuild, you can go from 80 upwards
Dont use T Cut, it has wax in it AND amonia (breaks down paint!).
Don't use washing up liquid, it contains salt.
Don't use water on primer, the primer is designed to absorb the first liquid it comes into contact with, this is ideally the next coat of paint!!
Its metallic. Is it ok to degrease with white spirit then tack cloth then paint? Thats what i have done. Some small parts look as though it has reacted. Could this be white spirit not evaporated? Some areas went on nicely.
quote:
Originally posted by emsfactory
Its metallic. Is it ok to degrease with white spirit then tack cloth then paint? Thats what i have done. Some small parts look as though it has reacted. Could this be white spirit not evaporated? Some areas went on nicely.
Weird stuff paint!!!! sticks when you splash it on something and when you want it to look good and stay there....it flakes off