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Post by berner on Aug 25, 2004 15:18:41 GMT -5
I have never done any body work. I have a hood from a suburban and need to get it cleaned up and primered. Now, should I strip the old paint off or should I just primer over it. And it has a few tiny dents and I have never done a bondo job, does anyone have recomendations for that as well. I know that bondo is sh*tty to use but what else can you do? Thanx for the info in advance! ben  |
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Post by 19_Chevelle_69 on Aug 25, 2004 17:07:26 GMT -5
A hood off the truck is a good candidate for a chemical stripper. Follow the directions on the can exactly, and make sure you wash everything off with plenty of water afterwards.
If the dents are less than 2" or so in diameter, I would go to an autobody supply place and get a good 2 part putty. Better than bondo, and won't pull in the primer as easily.
I would also recommend you use a 2 part epoxy primer to help prolong the life of your new paintjob. It's quite a bit more expensive, but well worth it in the end.
One more thing...if you are going to touch sandpaper to that truck, you should always be using a rubber sanding block. Use one as long as you can in the area where you are working.
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Post by berner on Aug 26, 2004 14:46:09 GMT -5
Awesome thank you for the tips, they all sound very reasonable. I was also going to get on here and ask you guys what you tought about rust removal. Last night I was sand blasting my brake drums and that brake back plate disc, ever with the blaster it took well ober 4 hours  ............................. I need something for body parts and chassis. What takes rust off easilly, anything? and also thanx for the replies. :drunk: ben |
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Post by 19_Chevelle_69 on Aug 27, 2004 18:31:49 GMT -5
Heavy rust buildup should be ground off with a small grinder and a flap wheel to remove the clumpy stuff. Surface rust will be much easier to remove with a small spot blaster.
Body panels really shouldn't really be hit with a powerful blaster as the metal can be stretched out and get wavy. Spot blasting a few scabs on the body won't be a problem though.
As far as the drums or other objects like them, you'd have to chip off all the big scale first then put the blaster to it. Blasting does take some time to do a good job, and makes a hell of a mess...LOL.
If I'm doing any blasting, I go out and lay a large sheet of cardboard on my gravel driveway, then when I'm done, I dump it over and the sand falls down into the stones, and disappears. You could do the same on your lawn, make sure to put a board down first so you don't blast the grass and kill it.
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Post by BowtieGuy on Aug 28, 2004 14:18:13 GMT -5
If the hood has enough damage it would be easier to just get an aftermarket hood. The fiberglass and cowl induction hoods are nice but costly, an original aftermarket hood is fairly cheap. Just something else to think about.
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Highpsi
Wrencher
Chevy 4 life
Posts: 157
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Post by Highpsi on Dec 26, 2004 16:55:22 GMT -5
I don't know if this is a dead topic by now, but thought I would chime in a bit late here and see how its gooin Ben. Did you finish up with the hood?
How many psi are you running on your sandblaster? What type blaster are you using, ie. hopper type pressureized or a vaccum type?
Yeah, the sandblasting can be a nightmare without a compressor that can keep up. I have found that the volume of the compressor will not really matter so much as the capability of the motor to keep up with the constant airflow. I have a single stage 60 gallon ingersoll rand compressor and it won't blast very much longer then 5 minutes without a serious loss of capibility to remove material.
Also what kind of media are you using? Play sand is CRAP!! You will be amazed if you switch to real stuff designed for sandblasting.
Also be sure to wear a respirator cuz you dun wanna breath that crap!
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Post by Missgoodwrench on Dec 31, 2004 11:29:21 GMT -5
I have a stock hood that someone tried to put a cowl on that I am fighting myself. I have stripped it down to metal and the bondo job they did to keep the cowl on is horrible. What is the best and easiest way to remove this and do it right? I am also haveing a hard time getting the hood to line up and close right after reshaping the corner that was smashed. It looks like all the lines are sitting right and the seems are good it just barely hits the piece between the hood and the windsheild. Any suggestions?
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Highpsi
Wrencher
Chevy 4 life
Posts: 157
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Post by Highpsi on Jan 8, 2005 10:12:57 GMT -5
If you have not gotten all the bondo off by now, hopefully this can help. Try a 90 deg. air angle grinder with a 3M threaded type round sandpaper disc. They make them in 4", 3" and other sizes. Try some 36 grit if you want to really take the stuff off. That'll do it in a hurry! But be careful once you get to the bottom you dont start blazing into the metal. You'll know when you see sparks anyway! Besides you will obviously need to touch up anyway later with more polyester filler.
I wouldn't suggest using a chemical stripper to remove it, you'll be there forever.
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Post by Missgoodwrench on Feb 10, 2005 22:34:11 GMT -5
Thanks for the advice. I was doing with a sanding disk my dad told me to use and my hand goes numb before anything actually comes off. I think he just wanted to see if i was dumb enough to do it by hand.
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Post by berner on Mar 30, 2005 10:08:59 GMT -5
High psi, I dont have a sand blaster and I am doing it with my hand and a hand sander. Yes it is a crappy job but thats all i can afjunky a$$ f@#d for the moment! I am acually just getting started. I did a chemical striper to take it to the bare metal but it only took me to the primer. So it is a pain. I was curious, if i just lightly sand the old primer would it be fine to spray the new primer on top of that? I would figure it would be fine.  |
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Post by whitenproud on Oct 17, 2005 22:13:14 GMT -5
Lol this is funny because im doing the same to my hood and firewall.. but unlike you, I have only some sos pads and i used some oven cleaner.. seems to be working. but probly not as quick and as affective as a sandblaster...and i was also told that i didnt have to strip all the paint off.right?...also i have a spot on my hood where some idiot tryed to bondo it and now it looks like nuts...can i sand it down? anyways im sure this thread is outdated but i always got to put my 2 cents in
WhiteNProud
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Post by 19_Chevelle_69 on Oct 18, 2005 12:37:27 GMT -5
You won't have to strip the paint off down to bare metal. Just be sure that all the oil and grease is gone, or the new paint won't adhere.
The Bondo (plastic filler), on your hood can be sanded down. Use 180 grit paper wrapped around a flat wood block. Sand in all directions, (not circles though). Once the filler starts to feather at the outer edge, go to a more fine paper like 280-320. Once you are satisfied, put a thin coat or rattle can primer on it. Let that dry thoroughly. Then hit it again with a slightly thicker coat of primer.
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............................. I need something for body parts and chassis. What takes rust off easilly, anything? and also thanx for the replies. :drunk:
