Protecting undercrraige???

hey i just wanted to start a thread on how to prevent rust/ protect under carriage. i've heard that 3m make this rubber spraying product that protects but does it work? and suggestions? I've personally tried some what high quality spray paint but it chipping everywhere

thanks

 

Spay on bed liner works well

 

is it pretty expensive for it? i did my bed and it wasnt too bad

 

I have tested the 3m undercoating before, its good stuff buy it doesn't dry. It will stay kinda gummy, and dirt sticks to it. To clean the dirt off you need a pressure washer, and it takes the undercoating off too. The bed liner drys good and is hard as a rock.

 

are you able to use that hurculiner stuff for the undercarriage?

 

por-15

 

I get under my truck every year or two to check for rust. If I find some, I'll sand to the frame and repaint with black chassis paint. That's about as cheap as you can go.
You can also try that rubberized spray, have used it once and worked great. Also could try por-15.

X2!

 

so i look up por-15. does it allow you to paint directly over the rust without removing it?

 

AMSOIL MPHD Heavy Duty Metal Protector. No comparison.
http://nooilchange.com/amsoil/special-fluids/hdmp.htm

 

do you remember how much a pint of por-15 will cover? Or do u know how much it will take to cover the undercarriage?

 

last year i had my whole underside of my truck undercoated at uniglass ziebart in saint john, i knew the manager so he hooked me up with a 400$ undercoating job for only 99$. but for touchups i use rubberized bedliner spray, that stuff works great. i always clean the area before spraying but it adheres really well either way.

 

por-15 says that for the paint to preform weel it must be applied in temps above 65. Well i live in and the temp never gets above 40. so has anyone every used por-15 under 65?

 

POR-15 is very work intensive, and highly caustic! I did some research and decided that for me it was a little too much work... and it's quite expensive.

Im gonna give this a shot...
http://www.eastwood.com/ew-heavy-duty-anti-rust-qts-black.html

And this for prep..
http://www.eastwood.com/ew-rust-converter-new-formula-aerosol.html

 

ya that would work pretty good but i think im still going to take the time to do por-15. and yes its pretty expensive for paint but my truck takes care of me so ill do the same.