What are "You" doing about your door rust?
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Senior User
Joined: Dec 2005
Posts: 145
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From: minneapolis
What are "You" doing about your door rust?
on the bottom of both my inside doors rust is beginning to be a concern. what do u do? they have the "vent" rails so you cant said inside of them. will that POR rust inhibitor work here? the rust is worse on the driver side, due to the famous "door crack" syndrome. {i should just epoxy that crack}
99 f150 ext cab 4x4 offroad, 78k, made in ontario may of 99, tks guys
99 f150 ext cab 4x4 offroad, 78k, made in ontario may of 99, tks guys
Senior User
Joined: Jun 2001
Posts: 321
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From: Ohio
I bought the rust Bullit treatment 1 quart was $35.00.
I applied it last week and went ahead and did the bottom seam on all 4 doors.
It seems to be pretty amazing stuff and drys to a hard epoxy-like feel.
don't get it on your hands it will not come off easy.
You can see a chemical-like reaction when it hits the rust.
I applied it last week and went ahead and did the bottom seam on all 4 doors.
It seems to be pretty amazing stuff and drys to a hard epoxy-like feel.
don't get it on your hands it will not come off easy.
You can see a chemical-like reaction when it hits the rust.
Posting Guru
Joined: Feb 2007
Posts: 2,351
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Preventive maintenance I've always suggested includes periodic injection of some oil into doors. An annual spoonful of oil allowed to dribble down inside, along the bottom of door seams, during dry weather, will go a long way towards keeping rain bearing salts from seeping into the folds of steel & accumulating.
Fleet Mechanic
Joined: May 2005
Posts: 1,739
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From: Vale, NC
My plan this summer is to use some of the rust converter, but before doing so I am going to take my dremel and elongate those drain holes so they go down to the bottom of the crease. Right now any water in there has about a 1/4" V to just sit in. The holes don't go down there and so it can't drain beyond that point.
Posting Guru
Joined: Apr 2005
Posts: 1,290
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From: Edgerton, WI
As of yet my doors dont have issues with rust. My running boards are pretty rusty, but not the doors...
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Elder User
Joined: Jan 2004
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2 years ago I sanded/ground down all the rust I could get to on all 4 doors and the tailgate. I then primed them, and followed that with the roll on bedliner stuff (I can't remember the brand). It held up for about 6 months, but then the rust came back even thicker...so I'd really like to know what the trick to beating it is myself.
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Posting Guru
Joined: Feb 2007
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While they're still new & the door seams are still clean & dry, you could pull the door panels & pour in a small amount of low viscosity epoxy. This would seep deeply down into the trap that is formed by folds of this traditional design & seal out the inevitable leaks that deliver salts that draw moisture & accelerate rust. You could plug the drains temporarily w/clay so epoxy spreads the entire length of the leveled door bottom. POR-15 would also penetrate & seal this designed in rust trap.
Fleet Mechanic
Joined: Nov 2000
Posts: 1,713
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From: In my House
I bought my 01 used back in December, and that was one of the first things I did, was to paint some of the good ole Por15, onto the bottom seems of the doors. That rustbullit stuff sounds like it works well too. I also used the por15 on some of the underside crossmembers of the bed. Those seem to be rusting up as well. I plan to take the bed off and do the frame rails back there when I get time.
Rich
Rich
Posting Guru
Joined: Feb 2007
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The strategy I was recommending is to get epoxy or POR15 inside the door so that it soaks deeply down into the seam from the inside.
IMO "to paint some....onto the bottom seems" presumably from the outside, will not address the issue of rain & salts accumulating inside the door, deep in the fold where door skin wraps door's inner panel.
IMO "to paint some....onto the bottom seems" presumably from the outside, will not address the issue of rain & salts accumulating inside the door, deep in the fold where door skin wraps door's inner panel.
Senior User
Joined: Jun 2001
Posts: 321
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From: Ohio
Even using oil is not a good thing. we all know oil doesn't mix with water but it will conduct and keep moister there.
When I bought my truck I got the "protect" package. I have no rust anywhere else other than that one rear passenger door.
With the protect package I looked inside of the door and can clearly see that they got the spray all the way along the seam and the mill thickness is good.
The only thing I see is the lip where the outer panel was rolled up under just simply lets water set there and do it's work.
When I bought my truck I got the "protect" package. I have no rust anywhere else other than that one rear passenger door.
With the protect package I looked inside of the door and can clearly see that they got the spray all the way along the seam and the mill thickness is good.
The only thing I see is the lip where the outer panel was rolled up under just simply lets water set there and do it's work.