rhino lining inside bottom of the doors?

[Daves72'GMC]

Should I have the inside bottoms of my doors Rhino lined where the holes are to let the water out? MY body man says it helps when the water goes inside the doors and goes through the holes the bottom of the doors and theydon't get wet and helps prevent rust. any suggestions ? Thanks everyone.

[Randy70C-10]

Interesting, I thought up that idea over a year ago, thought I was the only one. I'm sure that it would work, just make sure that you re-drill the drain holes.

[yellowgmc]

i was thinkin gof having the floor of my cab lined once i have all the new patches welded in. then put the carpet over it. then i don't have to worry about rust on the floor anomore. maybe i will have the inner doors done as well. and how about the cowl as well?

[1969 GMC]

I too would liek to do that...whenever I do all the bodywork to my cab, I'd like to just spray rhino liner (or similar) on the floor, firewall, kickpanels, and the back wall, up to the line under the window. Then when it gets dirty, just hose it out.

[Longhorn Man]

I was thinking of doing the same, but with the POR15.

[mtdave2]

i spraied some of that rubber bed liner stuff on the underside of the doors... working well!

[XXL]

Any of the catalyzed elastomeric polyurethane products (like Rhino) will be expensive... especially if your local dealer/installer is a production shop that's just used to knocking out beds. Also, it can get pretty heavy.

Just some random thoughts.

Kenneth

[Lippyp]

Before the winter gets here again I intend to rustproof my truck with one of the many treatments available here in the UK (Waxoyl, Dinitrol) These are basically a waxlike substance that you inject into all the cavities (rockers, door pillars etc) it has good creeping abilities and even self repairs if it gets a small scratch as it doesn't set fully hard. It's waterproof and also airproff so stops rust pretty well. There are also variants for spraying the underside of the truck and chassis with, available in both clear and black. It's a horrible messy job to do but worth it in the long term (remember to drive the truck onto a plastic sheet or you get a rustproofed nice slippy drive!). Not sure if similar products are available in the U.S.

[mocwon]

I used rubberized under coating in my car doors and on the floor (before underlayment). It works great, is cheap and easy to apply. I used urethane for many of the seams like when the outer wheel house attaches to the quarters. This stuff is great but somewhat expensive. As mentioned, open up the holes in the bottom after you cover them.

[Suicide-D]

I used the rubberized undercoating also...when I did the inner door bottom and outer skin... I sprayed rustproofing stuff first then then undercoating.