How many hours to block sand?
lol at 40 hrs...
how nice do you want it?
cheap paint job goes like this:
wash and scrub entire car with degreaser, we use a splash of car wash soap and powder laundry soap
go around and circle all your dents or things you want to fix with tape or sharpie
DA or 120 on a stick all the areas that need fixing and then bag out and mud
stick or long black flat
wet sand area's for paint with 360 on long block (paint stick at least), and soft pad (grey on one side and black on the other) till there is no shine or orange peel
(Your Choice) either spot prime fixed spots or prime whole car and guide coat over primed spots
360 all guide coated places
wash again and your ready to mask
Good Paint Job: 200+ Hrs
Full strip down to bare metal
acid wash or blast all rust areas (cut out and fix thru holes)
bang out and spot mud area's
epoxy immediatly! (protects from rust and seals bare metal)(We have NO luck with primers sticking to bare metal and had lots of lifting!)
within a day come back with a high build primer and apply 4 almost running coats, allow at least 15 minutes between coats
allow to dry at least 24 hrs
for long flat areas use a long block with all rods in, for slight radiuses use a paint stick(always at a 45* or you'll put grooves!), rest if soft pad.
first is block with 80 grit dry till you hit metal and mud as necessary
re prime with 4 coats again
again 80 and mud as needed
reprime
now you should be able to block with 80 for color change (you'll see once you start)
guide coat and then 120
now one last prime and guide coat
congrats you ready to start wet sanding!
now start with 360 and just cut the guide coat
your ready to paint unless going metallic, if it is you need to re guide coat and 400 wet with a soft pad and stick.
the difference is a car that is a 10 footer or appraises at 137,000 dollars...
and so you know it was me and the boss who built all those cars and more... currently were doing a 69 M-Code 440ci Cuda, was wet sanding on saturday