Primering Questions
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Primering Questions
Ok i am soon going to start primering my car...I have jsut mounded a new bumper cover and am lookign to start primering soon....I just wanna make sure I am doing things right...
from what I have read and put together what I want to do is strip the car to bare metal....clean with acetone and scrub with water to get allt eh chemicals out...wait for it to dry....and then spray the primer...after car is coated with primer use 320 grit sand paper and sand it all smoother like....then use some primer sealer...and sand it as well....
I hope I am correct on that one...but what grit would I sand the primer sealer with?
will multiple layers of primer hurt the end product?
thanks
from what I have read and put together what I want to do is strip the car to bare metal....clean with acetone and scrub with water to get allt eh chemicals out...wait for it to dry....and then spray the primer...after car is coated with primer use 320 grit sand paper and sand it all smoother like....then use some primer sealer...and sand it as well....
I hope I am correct on that one...but what grit would I sand the primer sealer with?
will multiple layers of primer hurt the end product?
thanks
#2
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I have a quick outline here, search for posts by JeffW, also, he's got a good start and has a good grasp of what needs to be done to get a good finish.https://www.thirdgen.org/techbb2/showthread.php?s=&threadid=249455
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Car: candy blue 85 z28
Engine: 305 tpi LB9
Transmission: 700r4 crazy beefed up one
Axle/Gears: ones with teeth
etch is an acid that helps the primer bite into the metal better.
etching primer or epoxy primer can be used independant or together seems to be personal prefrence. Both do about the same thing just diffrently.
both are to seal the metal and protect from rust. I used epoxy primer on my project.
Jeff
etching primer or epoxy primer can be used independant or together seems to be personal prefrence. Both do about the same thing just diffrently.
both are to seal the metal and protect from rust. I used epoxy primer on my project.
Jeff
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thank you for the clarification...i was thinking it was two different steps...
whats the difference fomr etch or epoxy primer and the 2k primer?
and jsut a "like to know"...how does the etch primer seal versus the epoxy?
thanks again!!~
whats the difference fomr etch or epoxy primer and the 2k primer?
and jsut a "like to know"...how does the etch primer seal versus the epoxy?
thanks again!!~
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Car: candy blue 85 z28
Engine: 305 tpi LB9
Transmission: 700r4 crazy beefed up one
Axle/Gears: ones with teeth
etch or epoxy is like goodyear or bf goodrich or choclate or vanilla.
from every thing i found it comes down to prefrence. some have used and etch like picklex and the epoxy. then they get both. i just used epoxy worked fine holds the metal real good.
2k is a term for mixing primer and paint. 2 steps. primer and a catalist. rather than 1k with is ready to shoot. same with fillers 2k you add a hardener 1k would be spot putty. so don't mix 1k and 2k in the same job and your all set.
so 2k primer is you sandable level. shoot epoxy let set up following tech sheet, then follow up with 2k primer (primer filler) (primer sandable) usually 2-3 medium coats of this primer this is the one where you block sand and guide coat and do any filling you need.
after filler you need another round of 2k or a sealer. iam using 2k again on mine.
Jeff
from every thing i found it comes down to prefrence. some have used and etch like picklex and the epoxy. then they get both. i just used epoxy worked fine holds the metal real good.
2k is a term for mixing primer and paint. 2 steps. primer and a catalist. rather than 1k with is ready to shoot. same with fillers 2k you add a hardener 1k would be spot putty. so don't mix 1k and 2k in the same job and your all set.
so 2k primer is you sandable level. shoot epoxy let set up following tech sheet, then follow up with 2k primer (primer filler) (primer sandable) usually 2-3 medium coats of this primer this is the one where you block sand and guide coat and do any filling you need.
after filler you need another round of 2k or a sealer. iam using 2k again on mine.
Jeff
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ok so you donnot sand the epoxy coat?
also on a simple Arctic White paint job is there really a need for the 2k? I mean will you see a real difference between teh 2k and the ready To Shoot primer?
next...
"block sand and guide coat and do any filling you need. "
what is guide coat? and is it at this point when you apply body filler? or is that done before you shoot the epoxy? i have read a variation of filler before epoxy and filler before sandable primer...
sorry for the numerious questions but i am pretty ignorant when it comes to this stuff and am trying to learn...
also on a simple Arctic White paint job is there really a need for the 2k? I mean will you see a real difference between teh 2k and the ready To Shoot primer?
next...
"block sand and guide coat and do any filling you need. "
what is guide coat? and is it at this point when you apply body filler? or is that done before you shoot the epoxy? i have read a variation of filler before epoxy and filler before sandable primer...
sorry for the numerious questions but i am pretty ignorant when it comes to this stuff and am trying to learn...
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On a light color i would use a light primer. Epoxy is nice cause you can use it for adhesion and sealer. You cant use epoxy over etch tho just to let yah know.Also a guide coat is somethin you spay over your high build coat so see where the low spots are. I stripped mine to bare metal then epoxied you can also use filler over epoxy but not over high build. So then i fixed the imperfections then high build and throw down a guide coat with just any black spray can paint.If you still have some imperfections u missed after high build use easy sand. Block yada yada. Seal,nibble ,base,clear and so on.
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Car: candy blue 85 z28
Engine: 305 tpi LB9
Transmission: 700r4 crazy beefed up one
Axle/Gears: ones with teeth
yes you need the 2k primer. you shoot the epoxy, let dry do not sand. you can tack rag if needed, shoot 2-3 coats of 2k primer. this is the coat you sand and add filler where needed. this is also where you do your guide coat and then when al is straight put another coat or two of primer and then wet sand with 400g
the reason i found to do epoxy 2k then filler is that you seal the filler in between two good coats of paint. then there is no risk of water getting into the primer in the event of a scratch and rusting the metal since the epoxy is under the filler.
see my post on guide coat i have pics.
the reason i found to do epoxy 2k then filler is that you seal the filler in between two good coats of paint. then there is no risk of water getting into the primer in the event of a scratch and rusting the metal since the epoxy is under the filler.
see my post on guide coat i have pics.
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ok
1) Strip to bare metal
2) Epoxy Prime
3) 2k Prime
4) Apply Body Filler and Sand Where Needed
5) Clean
6) 2k Prime
7) 2k Prime
8) Sand with 400 grit
9) Clean
10) Base
11) Base
12) Clear
13) Clear
14) Wet sand (what grit? 1000 is what i read somewhere)
15) Clear
16) Clear
17) Clear
18) Buff
19) Enjoy Fuits of Labor
i hope that is right....? But is it jsut one coat or 2 coats of base?
1) Strip to bare metal
2) Epoxy Prime
3) 2k Prime
4) Apply Body Filler and Sand Where Needed
5) Clean
6) 2k Prime
7) 2k Prime
8) Sand with 400 grit
9) Clean
10) Base
11) Base
12) Clear
13) Clear
14) Wet sand (what grit? 1000 is what i read somewhere)
15) Clear
16) Clear
17) Clear
18) Buff
19) Enjoy Fuits of Labor
i hope that is right....? But is it jsut one coat or 2 coats of base?
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Car: candy blue 85 z28
Engine: 305 tpi LB9
Transmission: 700r4 crazy beefed up one
Axle/Gears: ones with teeth
after the epoxy it said 2-3 coats of 2k i did one coat then fillers and block sanding the high areas showed real fast since i would hit epoxy primer, at other times i wished i had 2-3 coats for coverage of little stuff. so if you car is pretty straight go with the 2-3 coats
step 4 (sand all) block sand to cover d/a marks and level
step 8 wet sand 400 g
depends on the product your using for amount of coats
most say 2-3 or even coverage
get the product sheets they will tell you all as far as spray distance mix rations time for flash time before next step ect.
12/13 you can cut the clears to all 3 at once but i have seen alot of mention on 2 coat clear wet sand 1000 or 1200 and recoat 3 clear for that up to your elbow shine.
i belive kevin told me that too someday maybe he'll post a pic to show us what that looks like
jeff
step 4 (sand all) block sand to cover d/a marks and level
step 8 wet sand 400 g
depends on the product your using for amount of coats
most say 2-3 or even coverage
get the product sheets they will tell you all as far as spray distance mix rations time for flash time before next step ect.
12/13 you can cut the clears to all 3 at once but i have seen alot of mention on 2 coat clear wet sand 1000 or 1200 and recoat 3 clear for that up to your elbow shine.
i belive kevin told me that too someday maybe he'll post a pic to show us what that looks like
jeff
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heh iight....now i gotta complie a list of products that i will need to buy a tthe paint shop
thanks again JeffW and Ill be hitting oyu up wiht more questions after i read through thta link oyu sent me...that is if its alright with you...
thanks again JeffW and Ill be hitting oyu up wiht more questions after i read through thta link oyu sent me...that is if its alright with you...
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Seems like way to many step this is what my dad has been doing for yrs and what i did on my car. We use PPG paint what do you use. He also does classic car restoration so he isnt at a body shop try just to get it out the door.
(DP40) the correct name for the epoxy just add more thinner to seal
(K36) correct name for the high build.
Its exspensive but its the best stuff.
1) Strip to bare metal
2) (DP40)Epoxy Prime
3) Apply Body Filler and Sand Where Needed
4) Clean
5)(k36) high build then guide coat and block 360 grit apply easy sand if low spots
6) high build then guide coat and block 500 grit
7) high build then guide coat and block 600 grit
8) Clean
9) (DP40)Seal
10) Light sand with some 600
11) Base 2 coats
12) Clear wait 10min depending on thinner and clear again another 10min clear 1 more time maybe.
13) Wet sand 1200 then 1500
14) Buff
15) Enjoy Fuits of Labor
(DP40) the correct name for the epoxy just add more thinner to seal
(K36) correct name for the high build.
Its exspensive but its the best stuff.
1) Strip to bare metal
2) (DP40)Epoxy Prime
3) Apply Body Filler and Sand Where Needed
4) Clean
5)(k36) high build then guide coat and block 360 grit apply easy sand if low spots
6) high build then guide coat and block 500 grit
7) high build then guide coat and block 600 grit
8) Clean
9) (DP40)Seal
10) Light sand with some 600
11) Base 2 coats
12) Clear wait 10min depending on thinner and clear again another 10min clear 1 more time maybe.
13) Wet sand 1200 then 1500
14) Buff
15) Enjoy Fuits of Labor
Last edited by Spdfrk1990; 07-19-2004 at 07:16 AM.
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Also the place i buy my paint they have papers on all the paint products. Soo get you one for the DP40 ,k36, base and clear and read them will pretty much tell you everything you need to know about them. About how you can add fish eye eliminator to the clear or flex aditive to the base and clear. What the drying time are for what thinner and so on.
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Car: 00 Camaro SS
Engine: 5.7
Transmission: 6 speed
You should rub the car down with a wax and grease remover as a last step before primer,it'll get all of the finger prints off so the primer will stick better.Wipe it on then wipe it off with a clean dry rag.
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