Undercoating.

[Bugaru "JAY"]

 Hey guys I need a decent undercoating / rust preventer would perfer a spray on type, because most of the area is un-brushable, and also difficult to prep. What do you sugest?
  It is not a pan car so lots of nooks, and crannys to get into. Frame rails, cross members, etc. Also it is an almost together chassie so there is wiring, cables, etc under there. I like Pur15 but laying under a vehical and spraying that stuff would be nasy, and the tipical rubberized undercoating etc are too clumpy. I thought about using a pump sprayer and just spraying a thin coating of kero or oil to penetrate protect and perserve things. Maybe I'll just get some rattle cans of Rust-O...

[Celly]

how about TAR?  Matt might have some extra laying around LAUGH@ LAUGH@ LAUGH@

but, seriously i've used por15 with pretty good luck and its pretty tough as long as it's applied to etched bare metal and the area being treated is not exposed to sunlight. :icon_sunny: If it is exposed you'll need a topcoat over the por15....PS don't get it on your hands you'll have people asking you for a week what happened @7@

I've heard eastwood makes a good point and shoot product called Rust Encapsulator, but $25 is a bit pricey when you buy the 16oz aerosol, they also make a brush on.

3M Body Schutz is the rubber spray stuff, it's been used for years.

Hope that helps 2CENTS BO**

[Baha (Shawn)]

Whatever you do don't apply it in this weather. Either an air conditioned garage (that the car has been in for a few days) or wait till winter, or even better go to Yuma's house and apply it. Sealing in the moisture of 90% humidity under a blanket of rubber is as bad as not coating it at all. POR15 allows any moisture to escape with it's evaporating solvents.

A slight mod to one of these might suit your needs.



http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=99959

[njgt-1]

POR15 allows any moisture to escape with it's evaporating solvents.

I just got some Por-15 yesterday and the instructions tell you that Por hardens better on a humid day. Somehow its the moisture that makes it cure so don't use it in Arizona or you have a long wait until the next coat. If you can safely spray the Por I'd consider using it.

I remember reading about a product used in the UK called "waxoil". Supposed to be a combination of paraffin & some kind of mineral oil. You can spray it on and it forms a nice waterproof coating. Don't know if its available here but sounds like it won't trap moisture.

[lovebus (jack)]

I would use cans of "Rust Fix" by Dupli-color, it works great and goes on clear unless you spray it on rust, then it turns black. You can also paint over it. Good chit.

http://www.duplicolor.com/products/rustfix.html

It's also good to spray on new chrome parts you buy today, you know, the stuff that will start rusting in two weeks. It goes on clear and stops the junk chrome from rusting.

[Yuma]

Hey  BO** 

Come on down it's only 109 and 15% humidity  @7@ 
We have room in the garage  P#3

Yuma

[njgt-1]

Come on down it's only 109 and 15% humidity

lucky guy! its 109 here with 109% humidity!  %6%

[Celly]

109 deg....but don't worry WA# it's only a dry heat LAUGH@ LAUGH@ LAUGH@