my 67 has developed a rust spot on the driver's door behind where the mirror bolt's on , I had several door's extra so went out and started striping the paint off of them till I found this one , it was the worst looking one of the bunch but once cleaned it's a GEM totaly rust free , I am going to just put this one on my car , but now for my question it has no visable rust but on the inner structure it is all covered with surface rust (NO HOLE'S) I am wanting to coat it with truckbed liner but what would be good to do it first ? can't get in there to grind or sand it , at least not with anything I have ??
http://img.photobucket.com/albums/v638/RS3SDL2MG/RS3SDL2MG/Mvc-004s.jpg

Clean, etch, and coat with the POR15 system. Follow their directions to T. No need for Bedliner. Check out their site here: http://www.por15.com/ Also, Eastwood makes a decent one step coating that can be bought in an aerosol can, but I would still clean and etch like the POR system first. Here is their site: http://www.eastwoodcompany.com/

I'm having the same situation with my front fenders, which appear to be 10 year old or so replacements, starting to surface rust thru the primer on the inside.

I'm using a striping wheel or wire brush to remove as much rust as posible, cleaning well, and then POR15 with a brush, everywhere I can reach, partucularly areas where there is a penetration to the outside or where water drains.

Fortunately, on a fender I can reach quite a bit. Door'll be harder.

Clean it as best you can, then coat it with rust bullet or por, as best you can. get it good around penetrations (door handle, lock, mirror, and window fuzzy holes) and really good at the bottom seam and inside the corners. I'd be tempted to pour it thru, but make sure it doesn't seal the drain holes.

I used a rust "eater" from AutoZone. It has been awhile so I can't remember what it was called. It's not naval jelly, it came in a small bottle and I brushed it on in my cowl and doors. It went on white and dried clear. The surface rust turned black. No problems to date and it still looks good.

Personally I would have it e-coated, there will be no more rust left on the door anywhere and it will be coated with primer. This would work better than blasting since they can't get around the corners to do the enire inside. It should last forever after e-coating...

Truck bed liner weighs a ton! The door and hinges get enough strain by themselves.

If you can get the doors dipped that will remove the paint and rust. I had mine done and it sure is nioce to start with clean metal.

thank's a lot for all the good ideas , I went today and got a sand blaster and a bag of grade A homoginized sand and went to town :D , I have got it as clean as I think possible with what tool's are availible to me , I am on a TIGHT buget and have a brand new gallon of truck bed liner a freind of mine got me from auto zone (IT HAD A DENT IN THE CAN) so I am going to coat it good with that , I know the stuff is heavy but I think it will stop the rust , first reply about the por 15 is something I will do on some other part's , thank's a lot ,

IMHO I would stay away from the truckbed liner it is very heavy.

Wurth--Rust Guard Black.

[ 02-10-2005, 04:41 PM: Message edited by: 69lemans ]

The truckbed liner IMO is a mistake

I know the truck bed liner is heavy , but do you think it will rust proof the door , that is my one and only concern , I don't care if it is heavy I don't care what it look's like , I did a search and found where several member's are using it for floor pan's ,

Yes ,but there are other ways to protect the inside without using bed liner material.It sounds like a good idea,but I think there would be problems down the road.In essence to protect from rust all you have to do is keep moisture off of bare metal,that can be done with a good coat or two of paint.If you have the inside of the door clean and blown out, paint it,that will do what your trying to accomplish.The coverage you are after is just that,"coverage".It doesent have to be strong enough to handle being in the bed of a truck which is a high traffic area.As far as the floorboards go its a little more understanding than the doors,higher traffic area,sound deadner.Sorry this is so long but I feel if you use the liner you will have trouble in the future.JMO though.

Ron

Those applications are perfect for Eastwood Encapsulator.

I know the truck bed liner is heavy , but do you think it will rust proof the door NO!! Any remaining rust will continue to grow and creep under the surface of the liner and eventually penetrate the door skin. Use POR or Eastwood or. The aerosol can would work great in you situation. Take the time to get the right materials rather than being in a hurry and doing a marginal job. Epoxy primer would even be better than bedliner.

Bed liner is not a rust inhibitor and will not stop rust. Use a rust inhibitor, even if you have to go out and buy it. They are made exactly for the problems you have.