Paint toad or maverick!!

[96dime]

lol now that i got your attention, i got the truck fully sanded with 80 grit then with 220 grit, body work done and epoxy primed, whats the next step should i wetsand the primer with 600 grit then paint? or sand the primer with 320 then wetsand with 600?, im painting my door handels and mirrors, so what are the steps for plastic? sand/plastic adhesion promoter, prime,paint,clear? TYVM 4 THE HELP!

[wagonproject]

You sanded the whole truck with 80 and then 220? And we've never primed over anything over 180.

[dimedragin22s]

should sand with 180 on spots you did body work 220 should be fine over existing finish thats if the existing finish is/was in good shape

but any way next step should be to block with 320/400 ( i usaly to 320 first to break the surface then 400 ) using a guide coat after 320 after that you wetsand or da with 600 then sealer, base , clear

plastic sand 180 adenshion, primer, sealer, base clear pretty much like you said

[paint toad]

i dunno......

[RedNoma]

Quote: Originally Posted by wagonproject

You sanded the whole truck with 80 and then 220? And we've never primed over anything over 180.

I always block out high build primer with 220 before the last coat.

Anyway, to the guy you should have sprayed a urethane primer over the epoxy. No sanding.

[RedNoma]

Quote: Originally Posted by dimedragin22s

should sand with 180 on spots you did body work 220 should be fine over existing finish thats if the existing finish is/was in good shape

but any way next step should be to block with 320/400 ( i usaly to 320 first to break the surface then 400 ) using a guide coat after 320 after that you wetsand or da with 600 then sealer, base , clear

plastic sand 180 adenshion, primer, sealer, base clear pretty much like you said

No way he's going to be able to sand epoxy with anything finer than 180 (in my experience) without gumming the paper like crazy.

[Maverick2664]

i absolutely hate sanding epoxy primer, even after a month of curing and with 400 wet it was hell

[blazin24]

how long after spraying your epoxy primer can you lay high build over it?

[dimedragin22s]

Quote: Originally Posted by RedNoma

No way he's going to be able to sand epoxy with anything finer than 180 (in my experience) without gumming the paper like crazy.

nevered used expoy primer just urethane primer, but do use expoy sealer

[Maverick2664]

Quote: Originally Posted by blazin24

how long after spraying your epoxy primer can you lay high build over it?

someone once told me you can immediately afterwards... but i prefer to wait til the day after

[paint toad]

well,you gotta let it flash......for the most part i like to wait an hour before primer.....if you can wetsand dirt nibs out of the epoxy it is ready to topcoat

[RedNoma]

Quote: Originally Posted by paint toad

well,you gotta let it flash......for the most part i like to wait an hour before primer.....if you can wetsand dirt nibs out of the epoxy it is ready to topcoat

I usually wait 30 minutes or so. Never had any problems.

[Draggin97]

30 min- 1 hr is pretty common, just aquire and read the tech sheets on whatever product you are using there is not really a reason to take a shot in the dark with it if you can get the info.

[blazin24]

alright cool, the tech sheets i read said nothing past 3 days or something but never said if there was a waiting period i normally waited around 6 hrs to a day. paint hasn't come off yet, thanks

[paint toad]

Quote: Originally Posted by Draggin97

30 min- 1 hr is pretty common, just aquire and read the tech sheets on whatever product you are using there is not really a reason to take a shot in the dark with it if you can get the info.

and just for giggles.......

ppg-dp-xx series epoxy primer,when using 402 activator, requires(i think) an induction period(30 minutes @70 degrees)...(MATT???)....to let the components stabilize,before you should stir it again and put it in the gun to spray it......

[paint toad]

Quote: Originally Posted by Maverick2664

i absolutely hate sanding epoxy primer, even after a month of curing and with 400 wet it was hell

i am dry sanding dp-90 by hand with 180 right now.......it has cured about a month now.....it's actually surprising how nice it is sanding

[terryl]

Quote: Originally Posted by paint toad

i dunno......

[Shawn F.]

Quote: Originally Posted by paint toad

and just for giggles.......

ppg-dp-xx series epoxy primer,when using 402 activator, requires(i think) an induction period(30 minutes @70 degrees)...(MATT???)....to let the components stabilize,before you should stir it again and put it in the gun to spray it......

Paint Toad, you are correct, it needs to set 30 minutes once mixed. Then stir and pour and it's ready to shoot.
If you epoxy it and then sand down and find it to be smooth then use a reduced coat of epoxy as a sealer and spray your base coat and your fine. It's hard to say what you need to have done because if you need to do body work still, sand through primer, etc etc.
Epoxy is a bitch to sand though so have fun!

[RedNoma]

Quote: Originally Posted by Shawn F.

Paint Toad, you are correct, it needs to set 30 minutes once mixed. Then stir and pour and it's ready to shoot.
If you epoxy it and then sand down and find it to be smooth then use a reduced coat of epoxy as a sealer and spray your base coat and your fine. It's hard to say what you need to have done because if you need to do body work still, sand through primer, etc etc.
Epoxy is a bitch to sand though so have fun!

He said he was sanding with 180. Would be hard to spray reduced Epoxy, as a sealer, over 180. I don't see any grit fine enough to spray sealer over being able to be used to sand epoxy with, without major gum issues. Then again I have been wrong plenty.

[paint toad]

Quote: Originally Posted by Shawn F.

Paint Toad, you are correct, it needs to set 30 minutes once mixed. Then stir and pour and it's ready to shoot.
If you epoxy it and then sand down and find it to be smooth then use a reduced coat of epoxy as a sealer and spray your base coat and your fine. It's hard to say what you need to have done because if you need to do body work still, sand through primer, etc etc.
Epoxy is a bitch to sand though so have fun!

it sands just fine with 180 dry.....then it will get recoated with epoxy then a couple coats of urethane.......ok?

and btw....you really don't know what i am doing or why

[sik_kreations_951]

Quote: Originally Posted by Shawn F.

Paint Toad, you are correct, it needs to set 30 minutes once mixed. Then stir and pour and it's ready to shoot.
If you epoxy it and then sand down and find it to be smooth then use a reduced coat of epoxy as a sealer and spray your base coat and your fine. It's hard to say what you need to have done because if you need to do body work still, sand through primer, etc etc.
Epoxy is a bitch to sand though so have fun!

i think he was talking to me

402 requires no induction. they do however recommend a 5 minute mechanical shaking. (what a waste of empty metal paint cans)

401 requires a 30 minute induction. same deal with the 5 minute shaking. not recommended on bare metal. pretty much only for plastics, sealer or groundcoat. works awesome on rhinos and new bumpers as sealer b4 paint.

u should never mix the 2 together.

402 has a 30 min flash time to topcoat either paint or primer. and filler can be applied over in a couple hours with 1 coat only or 2 coats it must sit over night before appyling filler.

401 has a 1 hr flash time.

sealer mix using either is 2 parts epoxy 1 part 40x catalyst 1/2 part dt reducer.

8 hour pot life 402 mix
72 hour pot life 401 mix

the epoxy never fully cures and i wouldnt dry to sand it ever. only to nib like toad said. always topcoat with ur sanding primer of choice.

[paint toad]

yeah.....the 401 requires induction.....duh...i've even got the tech sheets in arms reach and didn't check the number