Fixing rust spots on my car!

May 28, 2016 3:21 AM

codingbeast

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34134

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1531

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54

The problem area, left rear wheel well. Nasty.

Grinding out the rust

Fiberglass!

Now starts the fun... bondo on bondo..

on bondo...and lots of sanding.

Base coat with aeresol spray paint!! I got the paint from www.automotivetouchup.com

Clear coat, looks good!

Washed and waxed. Not bad for $60 worth of paint and materials! This is my second time working with bondo bodywork, but I'm very pleased how much better this time looks :)

Expected noodles

5 years ago | Likes 1 Dislikes 0

Etch primer to stop rust, high build primer to help paint adhere. Paint may eventually flake off! But good job nevertheless

10 years ago | Likes 1 Dislikes 0

Ngnhh.. how about welding some actual metal back to it.. *sigh*

10 years ago | Likes 3 Dislikes 0

Thank god I live in California

10 years ago | Likes 1 Dislikes 0

Next job: grind back and polish up those faded headlights ;)

10 years ago | Likes 3 Dislikes 0

You should do that toothpaste thing with the headlights. Shine it up real nice.

10 years ago | Likes 1 Dislikes 0

The result looks clean, but unless you replace with metal, the rust WILL come back.

10 years ago | Likes 5 Dislikes 1

No, no nonono no no no nooooooooo! :) NO!

10 years ago | Likes 2 Dislikes 0

Damn good job, OP.

10 years ago | Likes 1 Dislikes 0

Well, you did not fix the rust. You just concealed it. It will continue to rust under the fiberglass and show up within a year or so.

10 years ago | Likes 20 Dislikes 0

So the damn thing was almost a loss. $40 bucks

10 years ago | Likes 1 Dislikes 0

Good bonding job man. I'm impressed

10 years ago | Likes 4 Dislikes 1

Car guys hate you!

10 years ago | Likes 8 Dislikes 0

Naw, more like "one of us, one of us"

10 years ago | Likes 3 Dislikes 1

Fibreglass on rust = more rust and structural loss. Mechanical engineer here and nope. Only way to fix is cut out rust weld in new metal.

7 years ago | Likes 2 Dislikes 0

Since the basic issue, overlapping sheet metal in wet conditions, wasn't fixed, it is a waste of time

5 years ago | Likes 1 Dislikes 0

That's not fixing it, in any way other than cosmetic.

10 years ago | Likes 1 Dislikes 0

Sell it NOW. Tell no one!

10 years ago | Likes 1 Dislikes 0

Well, is this a thing? Do you guys want a tutorial on how to do this and more? I work as a car painter and do this every day.

10 years ago | Likes 7 Dislikes 1

Yes please. I have some terrible cancer on my Toyota and I'm a little afraid to tackle it.

10 years ago | Likes 1 Dislikes 0

Even though OP put effort into it, it's still a hack way to cover up rust.

10 years ago | Likes 2 Dislikes 0

Nice bondoage porn

10 years ago | Likes 1 Dislikes 0

Thanks for posting this I have the same problem.

10 years ago | Likes 11 Dislikes 0

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10 years ago (deleted Mar 12, 2023 3:39 AM) | Likes 0 Dislikes 0

From what I hear fixing rust spots is similar to removing tumors. You have to remove all the rusted areas or it will spread like cancer.

10 years ago | Likes 1 Dislikes 1

Keep in mind that in several countries it is illegal to replace metal with putty as it is not as strong as metal.

10 years ago | Likes 2 Dislikes 0

I live in freedomland.

10 years ago | Likes 1 Dislikes 0

Outfukingstanding. Well done.

10 years ago | Likes 1 Dislikes 0

This looks like a subtle ad.

10 years ago | Likes 1 Dislikes 0

60$ + the sand paper + sanding blocks + those spatula things + paint gun? Compressor? Hose?

10 years ago | Likes 1 Dislikes 0

no one gonna talk about the wheel pun at the start?

10 years ago | Likes 1 Dislikes 0

That's a lot of work for a 10+ year old Sonata. Must love that car!

10 years ago | Likes 65 Dislikes 5

Agreed.pirate.gif

10 years ago | Likes 1 Dislikes 1

Gotta protect your bootleg Merc

10 years ago | Likes 2 Dislikes 0

Sonata be kidding me!

10 years ago | Likes 2 Dislikes 1

Triggered

10 years ago | Likes 1 Dislikes 0

I had an 03 sonata until recently. I absolutely loved that car. Drove it 60 miles a day for work and never had a problem in 3 years.

10 years ago | Likes 1 Dislikes 0

Is ten year old car old for you? Must be fun to be rich...

10 years ago | Likes 21 Dislikes 8

In Michigan where rust is inevitable most people let their cars go instead of fixing because you're throwing away money

10 years ago | Likes 4 Dislikes 0

Mate, I live in Finland. 3/4 of the year is salted roads and I manage to keep my 15 yo Fiat Rust free...

10 years ago | Likes 5 Dislikes 4

Yes but you aren't 95% of people driving 20 year old Chevy's that have never seen a car wash

10 years ago | Likes 3 Dislikes 1

Most people can't afford to go buy a new car every time there's a little rust.

10 years ago | Likes 60 Dislikes 5

For people with cars from Midwest (or any other region with aggressive salt), it's like "meh." Now I'm in GA, every car looks brand new

10 years ago | Likes 7 Dislikes 0

As a Michigander, correct!

10 years ago | Likes 3 Dislikes 0

I second this, my poor outback was rust free until after 3years in mich with no garage

10 years ago | Likes 2 Dislikes 0

I think he means at that age people usually just leave the rust go instead of fixing it

10 years ago | Likes 28 Dislikes 0

Especially when you consider the Sonata is a rolling pile of shit. He spent more on materials than the car is worth.

10 years ago | Likes 2 Dislikes 1

Ding ding ding ding we have a winner

10 years ago | Likes 8 Dislikes 1

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10 years ago (deleted May 28, 2016 7:22 PM) | Likes 0 Dislikes 0

I drive a 99 forester. I know it's not cool. But I'm still going to tint it and buy new wheels. You do what you can to what you have

10 years ago | Likes 1 Dislikes 0

He did good, it's not a bad looking car

10 years ago | Likes 5 Dislikes 1

So now people cant be proud of things they most likely worked hard to pay for? Were you handed everything in life or something?

10 years ago | Likes 19 Dislikes 1

I deleted the comment because I was drunk when I made it, but no I paid for my first car by working my ass off.

10 years ago | Likes 1 Dislikes 1

Tell him! Woo!

10 years ago | Likes 4 Dislikes 0

I've got rust too! @codingbeast where did you purchase your fiberglass and resin, or is it prepreg?

10 years ago | Likes 1 Dislikes 0

prepreg is a different color, and more saturated. Any auto parts store, walmart type stores should have fiberglass and resin.

10 years ago | Likes 1 Dislikes 0

I've only dealt with carbon fiber prepreg, so I wasn't sure. Fiberglass at a Walmart!! Wow, didn't know it was so easily accessible, thanks!

10 years ago | Likes 1 Dislikes 0

glass prepreg is really yellow, Atleast the stuff i'm around is. As far as "store bought" glass, It costs quite a bit compared to a roll

10 years ago | Likes 1 Dislikes 0

The finish looks great @OP! But shouldn't you have used some sort of rust converter after sanding and before the fiberglass?

10 years ago | Likes 18 Dislikes 0

I would have used some POR-15 on it as well, but this should suffice for a while. I anything, @OP will know for next time.

10 years ago | Likes 3 Dislikes 0

POR-15 is crap, picky, and doesn't work half the time. masterseries Is a cheaper and better product.

10 years ago | Likes 1 Dislikes 0

yeah. it's not going to last very long, but temo fix

10 years ago | Likes 4 Dislikes 0

When it comes back after 3 years I don't think anyone at the junkyard is going to care

10 years ago | Likes 10 Dislikes 0

A job well done is its own reward.

10 years ago | Likes 2 Dislikes 0

Savage bro.

10 years ago | Likes 2 Dislikes 0

serious question, i need to fix some minor rust on my hood that is just going to get worse. Any advice from car people?

10 years ago | Likes 1 Dislikes 0

Need to see pictures. You can try the stuff that turns rust to paintable surface has to be very minor. Otherwise need to sand rust to bare

10 years ago | Likes 1 Dislikes 0

metal, then prime, paint, clear. It's not that hard with right tools, but need to figure if it's worth it for value of car. Attention to

10 years ago | Likes 1 Dislikes 0

detail and prep are KEY.-I've painted several cars and done plenty of body work.ALso, may be better off buying a new hood

10 years ago | Likes 1 Dislikes 0

it's on the rounded part of the top of the hood. It's an audi a4, so the hood may be excessively expensive. The rust is under the paint.

10 years ago | Likes 1 Dislikes 0

A4s are also abundant. If its a stock color, I'd prob try to find someone parting one out. Otherwise do a small spot repair, last option

10 years ago | Likes 1 Dislikes 0

Why not fix it with metal? Thats the right way

10 years ago | Likes 13 Dislikes 2

Maybe OP doesn't weld or fabricate? On a collector cars I'd agree with you, but bondo is fine on a car like this.

10 years ago | Likes 2 Dislikes 0

Normally I'd agree with you but this is a 12 y/o Hyundai, so a quicker, easier, less permanent fix is probably okay.

10 years ago | Likes 5 Dislikes 0

Well 12 yo isn't old yet...

10 years ago | Likes 7 Dislikes 0

My point is that a Hyundai Sonata isn't ever going to be a classic, so if the quicker fix looks half decent for now then it's probably okay

10 years ago | Likes 2 Dislikes 0

It is for an economy car.

10 years ago | Likes 3 Dislikes 1

What is economy car, and it isn't for any car. Average age here is 15 years.

10 years ago | Likes 1 Dislikes 0

Economy cars, inexpensive to buy and operate, but usually comes with drawbacks in quality and expectable lifetime.

10 years ago | Likes 1 Dislikes 0