[Chapel]

ok
my door is rusty
but its surface rust...
but the surface rust has made some dimples here and there...
and regular arm power and emery cloth isnt smoothing it out enough...
I want to grind it down SMOOTH.
...
would it be a bad idea to get an angle grinder and use that to grind off the rust?

 

[a1jettagli]

Re: best way to grind out rust (Chapel)

 

[Chapel]

Re: best way to grind out rust (a1jettagli)

I already have one of those...
what attachment would be good to use?

 

[Estate]

Re: best way to grind out rust (Chapel)

One of the little wire brush bits possibly?

 

[Chapel]

Re: best way to grind out rust (4Rings)

I tried
I need something that has pressure on it...
like the rubber mounted angle grinder sanders

 

[Estate]

Re: best way to grind out rust (Chapel)

So we're talking a larger area of rust then? If you use something hard (like a grinding stone) you risk going through the metal. Sounds like you really want to go out and get that angle grinder doncha?

 

[Chapel]

Re: best way to grind out rust (4Rings)

as long as it doesnt grind through my door...
its a big area
its about...
2 1/2" in diameter.

 

[bk1GTI]

Re: best way to grind out rust (Chapel)

Equipped with a wire brush it wil knock out the rust and not put holes in the metal!

 

[mob my audi]

Re: best way to grind out rust (bk1GTI)

I did the whole body of my rabbit with that brush- works like a charm

 

[BigCaddyHome]

Re: best way to grind out rust (driveGTI)

Chapel, if it is at the bottome of the door, you might as well go find another door. That rust no matter how much you remove will always come back... that is if it is a daily driver. I had mine all nice and painted and the door ended up rusting again there. Same with a rear hatch.. rust will always come back there too. sorry to say
Just warning you ahead of time.

 

[MiCrO]

Re: best way to grind out rust (BigCaddyHome)

i think you can buy the wire brush things in a type that will mount in a normal drill.... i think they are really cheap too...
i see them all the time at my local hardware store....


[Modified by MiCrO, 6:30 PM 2-12-2002]

 

[84_GLI_coupe]

Re: best way to grind out rust (MiCrO)

My GLI got the brush treatment too! Worked really good, except for the small holes, that's where the small cut-off saw came in handy.

 

[Chapel]

Re: best way to grind out rust (84_GLI_coupe)

rust is RIGHT in the middle of the door

 

[cthulu703]

Re: best way to grind out rust (Chapel)

3M makes these black composite abrasive pads that work better that anything I've tried to remove surface rust and paint.

 

[DuBLiFeh2o]

Re: best way to grind out rust (cthulu703)

the wire brush will knock down the rust, but if you get an actual grinding disk it will take the rust off and give you the bare metal of your door, which is what you want. Once you have done that the grinded metal will be a bit lower than the rest of the panel and thats where the bondo or finishing putty comes in. After that you need to prime, sand and paint. Primer is not waterproof so even if you prime it and dont paint the door the rust will eventually come back, you can always keep repeting this but your best bet is to get it painted after. It shouldnt rust after that.