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99ej8
06-20-2010, 12:30 AM
I got really tired of looking at the rust on my $400 beater. I would find water in the hatch after it rained, and the wind noise on the highway was crazy :(

Sooooo.... I started thinking of ways to fix this. First, I read this thread http://civic-eg.com/viewtopic.php?t=24 and thought "Oh shit, I gotta weld on new EVERYTHING." But I took off the sideskirts, and saw that it wasn't rusty at all! So I just decided to fix my quarter panels in the usual cheap way... using copious amounts of bondo. BUT!!!! I took it a step further by making steel patch panels that I attached and sealed to the body. Because I took this extra step instead of just bondo'ing over air, I think that this will last a few years at least.

Step 1. Cut out all bad metal. If you don't want to have future rust, you've gotta do this. It might look bad when all the metal is missing, but it'll save you from future rust issues. Pictures in the next step.

Step 2. Add expanding foam. I did this just to seal things up a bit. This stuff is extremely waterproof, which makes it pretty appropriate for this situation. Don't believe me? Get this shit on your hands and try to wash it off with water. You can't! hahaha.

http://i45.tinypic.com/a9u542.jpg

Fly as a mug.

Step 3. Trim foam, make patch panel. I used galvanized steel cut out of a circular ductwork section I had lying around. Trim with tin snips, WEAR GLOVES. Its razor sharp!

Step 4. Attach patch panel. I used epoxy. Once epoxy is dry, seal the panel in using seam sealer... Mine was designed for sealing gutters shut. Found it in a bin in the garage hahaha.

http://i47.tinypic.com/2pp0f2c.jpg

Damn straight.

Step 5. Bondo it up! I used the "premium gold" stuff, it was advertised as having better adhesion to galvanized steel. Take your time with the bondo to get the contours right, do a lot of small coats. Be careful when sanding too, always use a sanding block so it doesn't look lumpy when you're done!

Step 6. Seal up the underside. I used silicone caulk and rubberized undercoating to really make sure no more water can get up in there. This is pretty critical if you don't want it to rust again.

Step 7. Prime that bitch.

Here's my finished product! I'm ordering paint... It'll be here next week I think. I'm pretty happy with how it turned out. Perfection was not the goal with this product. I just wanted to stop having water in my trunk every time it rained!

http://i45.tinypic.com/azfcja.jpg

straight up boss.

so yeah... here's how much the whole thing cost.

bondo-premium gold. $9 at walmart
sheet metal-free
sandpaper-$6
seam sealer-probably $4 or less
silicone-$5
rubberized undercoat-$7 at napa
fill n seal foam-like $3 at menards

Total-$34. Worth it.

So yeah... don't judge me too much, this is my first shot at bodywork... I'm 17 and do all my work out of my parent's garage. This project did turn out better than expected though :D

bluebomber
06-20-2010, 12:59 AM
Cut out all bad metal.

Missed a spot under the tail light.

Otherwise :10:

:mystery:

99ej8
06-20-2010, 01:11 AM
Missed a spot under the tail light.

Otherwise :10:

:mystery:

I wanted to keep the contour back there so it wouldn't look like crap... haha i sanded back there though! hopefully I sanded well enough lol

Thanks though!

MonkeyGein
06-20-2010, 02:53 PM
looks good

hatchzc
06-20-2010, 02:55 PM
nice! you cant beat prices like that

aojtin
06-20-2010, 03:27 PM
ive done that before. doesnt seem to last as long as you think it would

99ej8
06-20-2010, 09:49 PM
ive done that before. doesnt seem to last as long as you think it would

Well if it doesn't last, then I can just weld in new panels eventually. At least I won't have water in my trunk anymore lol

2000_IntegraGS
06-20-2010, 10:22 PM
Nice! I will put this under the DIY section with the title "DIY Rust Repair"

99ej8
06-20-2010, 10:46 PM
Nice! I will put this under the DIY section with the title "DIY Rust Repair"

Haha thanks man

MonkeyGein
06-20-2010, 10:52 PM
i need to figure out how to keep dust out of my car

Timmypone
06-21-2010, 12:20 AM
all you have to do is get the panels and leave the rest to me lol

99ej8
06-21-2010, 12:51 AM
Haha well if my cheap repair doesnt last, i'm for sure coming to you for help lol

miguel30660
06-21-2010, 04:43 AM
my automotive teacher told me his trick for rust on the underbody he told me if you want rust to stop or keep it from happening is when you change your oil use some of it with a paint brush and coat the underbody with a small layer, ive seen it and it works

CodeRed86
09-07-2010, 10:13 PM
I'm gonna have to give this a try on my CB. It isn't terrible yet but no sense in letting it get worse

slappynuts
09-12-2010, 09:37 AM
i need to figure out how to keep dust out of my car

Take that spray foam and fill the whole car up.