need help prepping my LS6 intake for paint.
Thread Starter
TECH Junkie
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Joined: May 2005
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From: Highland, Indiana
need help prepping my LS6 intake for paint. Ok I have finally decided on the color of my LS6 intake and now it needs to be prepped for paint.
Right now my plans are
1. Sand 60 > 120 > 220 > 400 > 800
2. Spray adhesion promoter
3. Spray High build primer and sand again
4. Silver
5. Clear
6. Wetsand? Will it really be necessary to wetsand?
But I have already run into trouble. When I recieved the intake it had some kind of crazy buildup all over it like baked on oil or something.
I tried sanding it off but it is very hard and I had better luck just chipping it off with a screwdriver in some places. I tried soaking it in some degreaser but it didnt do much and it turned all the parts of the intake where this buildup was red (wtf?!) - I used simple green BTW
So does anyone know what the hell this is all over the intake? and if any kind of solvents would help get it off without destroying the plastic?
Thanks
Right now my plans are
1. Sand 60 > 120 > 220 > 400 > 800
2. Spray adhesion promoter
3. Spray High build primer and sand again
4. Silver
5. Clear
6. Wetsand? Will it really be necessary to wetsand?
But I have already run into trouble. When I recieved the intake it had some kind of crazy buildup all over it like baked on oil or something.
I tried sanding it off but it is very hard and I had better luck just chipping it off with a screwdriver in some places. I tried soaking it in some degreaser but it didnt do much and it turned all the parts of the intake where this buildup was red (wtf?!) - I used simple green BTW
So does anyone know what the hell this is all over the intake? and if any kind of solvents would help get it off without destroying the plastic?
Thanks
Thread Starter
TECH Junkie
iTrader: (6)
Joined: May 2005
Posts: 3,185
Likes: 3
From: Highland, Indiana
Originally Posted by Duffster
any chance of a picture of what you're talking about? What color is the 'gunk'?
Duff
Duff
I will try to get some pics later but for now here are some from the ebay auction.
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Make sure you mask around the injector holes!! Also don't paint on the bolt surfaces (4) that the fuel rails use to bolt down with. The paint will crack when you bolt it down and you'll have have to touch up the area with a brush.
Like mentioned earlier, use aresol brake cleaner, it cuts through anything.
Like mentioned earlier, use aresol brake cleaner, it cuts through anything.
Thread Starter
TECH Junkie
iTrader: (6)
Joined: May 2005
Posts: 3,185
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From: Highland, Indiana
I let it soak in some brake cleaner, it did soften it up alot but I still have to scrape it all off ... 
edit: Also the reason im planning on a high build primer is because the intake has alot of nicks and stuff in the plastic that I would like to try to smooth out.
edit: Also the reason im planning on a high build primer is because the intake has alot of nicks and stuff in the plastic that I would like to try to smooth out.
Thread Starter
TECH Junkie
iTrader: (6)
Joined: May 2005
Posts: 3,185
Likes: 3
From: Highland, Indiana
Here's all the nicks that I was talking about in the plastic... the high build primer didnt fill it enough.
Any suggestions on fixing those ?
Some other pics of primer coat #2
and some random pics of the products I'm using
BTW: What ended up getting all the gunk off was a combination of brake cleaner, goo gone, a power washer, and ALOT of elbow grease.
Damn Luna. Thanks in worse shape than I thought. Your using the right products as far as rattle can stuff goes, so you're good to go with that.
As for the nicks and scratches, they look pretty deep for even high build primer. My first thought would be to sand off as much of the primer as you can and leave the areas it has filled as is. That will really give you a better idea how severe they are. If sanding them out is not an option then I would say you are going to have to use a filler and I would suggest a glazing putty. I use a product everyday called MetalGlaze and it it great. Sands easy, fills quick and minimal shrinkage. May take 2-3 coats in some places as the 1st coat should fill and the second and third coats should feather out.
Wet sand the glazing putty with 320-400 grit.
Then start your re-priming shooting light, multiple coats. And continue your procedure. If you need any help or further tips let me know. I've done a few of these so far and they've turned out really nice.
Bryan
parbreak
As for the nicks and scratches, they look pretty deep for even high build primer. My first thought would be to sand off as much of the primer as you can and leave the areas it has filled as is. That will really give you a better idea how severe they are. If sanding them out is not an option then I would say you are going to have to use a filler and I would suggest a glazing putty. I use a product everyday called MetalGlaze and it it great. Sands easy, fills quick and minimal shrinkage. May take 2-3 coats in some places as the 1st coat should fill and the second and third coats should feather out.
Wet sand the glazing putty with 320-400 grit.
Then start your re-priming shooting light, multiple coats. And continue your procedure. If you need any help or further tips let me know. I've done a few of these so far and they've turned out really nice.
Bryan
parbreak
bondo has a great little filler for nicks/scrapes it comes in a red tube, should be right around where the regular bondo is, fills it right in then you sand down the excess. ive used it and it works great.
Thread Starter
TECH Junkie
iTrader: (6)
Joined: May 2005
Posts: 3,185
Likes: 3
From: Highland, Indiana
If I use a filler do I have to take the primer all the way down? or can I just put the filler on top of the primer and just spray another light layer of primer on top of the filler?
I was going to just sand it down and paint it tonight anyway but I got it down to 800 grit wet and it felt so awesome I just couldn't bring myself to spray the color when it was so close to being perfect.
I was going to just sand it down and paint it tonight anyway but I got it down to 800 grit wet and it felt so awesome I just couldn't bring myself to spray the color when it was so close to being perfect.
i wouldnt use bondo... it doesnt do to good around extreme heat from what ive seen..... one night we had a woods party w/ a big bon fire and my buddy parked his bondo bandit truck next to the bon fire and the bondo was all cracked from the heat(maybe just because he had a ton of bondo in the fenders)....
i dont know how the bondo glayzing and spot puddy would do????...
i dont know how the bondo glayzing and spot puddy would do????...