Chipped rust spot help!

So I have a chip on the rear of my truck just after the door... it's starting to get more and more rusty and might be spreading... what is the best way to fix this? Also on my front bumper and fenders there are a bunch of rust spots too... not sure how to fix those... looks like the dealership that sold me the truck had some spray paint to hit the spots on the hood and body, you can see the different brightness and spots where they did it... and it looks horrible

 

Small chips are hard to make perfect but you can prevent them from getting worse by sanding them down to bare metal and repaint and prime.

I usually tape off a small area and prime/paint with body match paint but it's not perfect. You can feather the finish a bit with wet sandpaper 1000 grit but I usually don't clear coat the small spots but your weather is harsher than here.

For small pinholes you can use touch up paint (dab on like nailpolish)

Also of note the rust on small knicks can actually be from road grime, brake dust etc, stuck in the paint not rust from body. Read about Clay bars Good luck. Mine is a truck not a show car so I hardly ever wash, wax, or clay bar anymore.

 

remove that door gasket

sand, prime, paint, clear, rub

 

Mine isn't a show truck, but living it salt country in the winter I don't want it to spread and start to eat away...

 

Why remove the door gasket?

 

so you have room to work. when you paint, you create a larger work zone. or don't remove it

 

Understood, no salt here.

 

I have touch up paint but it flaked off...

 

It happens. Get used to it.

Unless you want to make this your full time job, just scratch the rust off and hit with the touch up paint(the little brush/pen one). Use a light dab and then a coat of wax when it dries.

Edit, rereading and noting the larger areas, have you thought of getting it detailed or maybe painted?

 

There is no fixing rust, just prevention. You need to identify and paint those chips before rust sets in.

I would wash well, clay bar, use a detailing product designed for neutralizing rust spots, then wet sand any remaining rust, then paint. You can get some wet sanding paper and use a hole punch to pop out little peices and glue them to the end of a pencil (the eraser) and wet sand small parts like that.

It will more than likely not look great and may not work (it will keep rusting). So nip chips in the bud when they happen.

See detailing section for more help.

 

Dammit! I was hoping I could stop it and fix it... I don't want it to spread and become noticeable

 

Do research on chip repair and paint correction. To do a really good job takes a lot of prep and patience. You can likely sand through all the rust and fix it, but it will be near impossible to have it look pretty at the end. You do have the worlds best color for touch ups though (white).

Thats why I buy it.

 

I'll have to look into it and invest in claybars when I have the extra cash... maybe talk to my stepdad about it who runs a diesel garage, he knows people that owe him for repairs... maybe a paint shop owes him ha

 

Duplicolor's touch-up pens have a fiberglass brush/scraper at their tip that is really good for cleaning out rusted chips. Use it to scrape out the rust, then place a drop of the touch-up paint in the chipped spot. The paint shrinks as it cures, but wipe the brush kind of dry before you daub the paint--it's one of those "practice make perfect" things...

 

Is that hidden when your door is shut? A Dremel or similar tool would get most of the rust out and keep the area small. There are some good rust converter sprays out there, spray that then touch up with matching paint on a brush or pen.

 

It's not hidden it's on the frame right after the door seam

 

One thing I've used on those spots is naval jelly applied with a Q-tip, to remove the surface rust. Then dry it off, clean with alcohol, and cover with touch up paint. You gotta be careful with the naval jelly though. It can remove paint if left on for too long. Just follow directions on the container, and try to only apply enough to cover the exposed (rusty) area.

 

You can buy converters that will actually cause a chemical reaction and convert the rust to iron. In the marine industry, I have often used Ospho. There are other options as well if you do a little research. You need to sand off any loose rust on the surface and then you just brush on the Ospho. Make sure not to get it on any good paint as it is possible to etch or stain it.
From there it depends on how much time you want to take with it. It is possible to blend in patches with fine mask tape and a lot of patience/practice, but it doesn't happen first try. Seems like most people just go for the dab on touch up paint approach. It's quicker and easier, but usually doesn't look as good and I'm guessing won't last as long. But it will do the trick if that is all you need!

 

Sounds like a great approach but I just don't have that kinda trust in myself to execute something like that...

 

No clear coat on top of Superwhite. Clean and decrease before sanding.