91EFH22

Whats up everyone, the bed of my 87 Pup has been sitting in a car tent rusting away. Im using a grinder with a wire brush attachment to strip down what I can, what im having trouble with is the fact that the surface rust is coming off however it seems as though there is what appears to be leftover rust. What im wondering is can I use the wire wheel to get all of the rust off and then hit the bed up with Self Etching primer to take care of whatever is left after using a wire wheel? I plan on getting the bed LineX'd or Rhino lined so I dont believe this should be a problem.

Hopefully someone can chime in. Ive attached some pics....

oversteer_ms

I would start with removing what you can with the wire wheel. But don't wear yourself out. At this point your not removing it but just slowing it down.

What I have found works the best for me is "naval jelly". Or another gel form of phosphoric acid. It works as a rust converter, spray it on scrub it and rinse it off. Sometimes several applications are necessary depending on how bad it is.

Once you feel as though you have it squared away I would use some self etching primer and a sealer as well. I usually use Transtar black. Two medium coats. Don't over reduce it or you'll run the sh** out of it.

Austin Johnson
Oversteer Motorsports

91EFH22

Thanks for the reply! I might go that route, I was wondering if just using a lets say 120 grit sanding disk to knock down everything to shiny metal would work and be a little bit faster?

What do you think Oversteer?

Skatnshawn

I would recommend usin 60 grit or rough steel wool to get deeper then pressure wash repeat til rust is real thin and take a good primer such as rust oleum and spray a couple good coats sand with higher grit paper and paint

oversteer_ms

Whatever knocks it down quicker. Wire wheel, 60 grit, 40 grit. But the biggest step is going to be the phosphoric acid.

Chemicals are your best friend with an issue like this. Rust is like a weed and it will spread like wildfire without the right treatment.

And as far as the other guy posting, just scraping off a little rust and spraying some primer over it probably isn't the best idea if you are trying to have a rust free end product.

coog

id get some KRUST , gennolite on it and let it soak in first ,or even wd40 .etch primer should be best but make sure its not in primer long before you paint it . i made that mistake years ago and the primer allows moisture in/on

91EFH22

Again thanks for the replies. I think im going to grind down all of the rust and then Naval Jelly followed by epoxy primer.

Sound like a plan?

92civiceg9gsr

I would wire brush and sand off the worst of it then use Eastwood rust converter or fast etch before priming.

91EFH22

I have Eastwoods form of POR15.... That should do it if im not mistaken

Hidenplanvew

80 grit on a palm DA, dont put water on it it, your just going to give it chances to start in other loctions. Just use shop air and rag and wipe off while blowing air on it, use a wax and grease remover on it then epoxy surface sealer or etch sealer.. Not crap you can get from homedepot or walmart but real paint from PPG or Eastwood is ok, dont know about longevity of the eastwood paint. Follow the directions on the P sheet, You can find them on PPG's website under there Omni paint (omni is PPG's automotive line of paint)

coog

is it too bad to have sand blaster/ beed blasted ? if it still feels solid that would save you some wlbow work .

KingDela

helpfull thread!

91EFH22

I think im going to use a sand blaster on the joints I cannot get to and the wire wheel/DA to accomplish the rest followed by epoxy primer.

XxDARKCYDExX

If you plan on letting the bed sit for awhile, once you tackle the rust issue, it be best to etch prime over bare metal then epoxy seal it.

james0429

If you want to get rid of it completely your real choice is blast it , if you want to put it under the rug for a couple of years wire wheel , 36 grit and grind it out and just prime over it and seal the hell out of it .
heres a cheap project i was made to do for my sister , this was my first paint job i had to by my self it . verry veryy budgeted , grinded everything out as much as possible , primed it all , sealed it with a meddalion product and the paint was a single stage with 20 differnt scrap reds mixed together .




finish product looked pretty good ! hopefully it doesnt pop a couple years down the road.

91EFH22

Whats the difference between wire wheeling and grinding it off VS blasting it? I see why its best to blast out the seam areas but the open/flat ones should be ok using the latter no?

aristides

I would just get a DA with low grit or a grinder , just get it to shiny metal
And nice and smooth then primer

aristides

Oh and a wire disk on the hard to get spots

j13

iTrader: (2)

Have a problem sand blast it, have any holes patched up, then brush on a nice heavy coat of POR15. It cost a lot of money per pint, but it will protect it for ever

ej1 rep

Fastest and easiest way would be to blast it. personally I wouldnt even waste my time with a wire wheels.

93nismo

blasting it or having it acid dipped is the only real way to potentially get rid of all of it. there are places that will acid dip/blast and then dip it in a coating to cover every spot seam and crevice. that's the only way your going to maybe gaurentee no rust ever. if you cant or wont blast it. hit it with low grits and get what you can off. use a grinder in spots that are difficult. etch prime it and continue with normal refinishing steps.