Undercarriage sealant (1 Viewer)

[GrungeDog]

Hey guys/gals thanks for all you help!
I've got a new issue, the undercarriage on my 01' lx470 I just bought is not great. Wondering if anyone has experience using -

Cosmoline RP-342"Heavy" Rust Preventative Spray (Military-Grade)​

Found a guy via facebook marketplace using the stuff- He said "I charge $600 and it takes about 6-8hrs. I scrape all flaking rust and brush welds with the steel brush and other bad spots. I spray a rust reformer on which is an acid base that kills the rust then I coat with the wax based sealant RP-342. I usually use about 8 cans per truck and lay it thick."

Are there any draw backs to using this product? Is there a better option?

Winter is coming and can't let this rust spread anymore. Only wish I had garage space and lift to do it myself.....thanks for you time and knowledge

 

[planomateo]

Lots of threads on the topic. Not sure if you've used the search here yet, but it's pretty handy

Rust proofing with cosmoline

Well still haven't made a purchase of anything, too busy. This fluid film is much cheaper than a lot of other options. Their website says u cant spray it with a pump sprayer in the faq. ****e. I imagine i can take it to work and use some air there. How messy and smelly is it applying this stuff...

forum.ih8mud.com

Rust advice - trailer hitch

I searched for a general/running rust advice thread, but didn’t find one…sorry for posting another one… Is this rust on the hitch anything to be concerned about? Or just treat/convert it and move on? Thanks in advance!

forum.ih8mud.com

Fixing Frame Rot

Hi all, I just bought an '01 LX470. I've been a Jeep guy for years, so this is new territory for me. Because of Covid I couldn't travel to a rust free state and so i bought one in New Jersey. The rig is sweet but there is definitely rust. I found a company in Rhode Island called Auto Rust...

forum.ih8mud.com

Another Rust thread unfortunately

Hey everyone, fairly new owner here of a 1998 White 100 series. I got it from my aunt for a good price, but the amount of rust is concerning. Think I may only be using it for off-roading based on the severity of the rust. Let me know your thoughts. Again it’s a Michigan vehicle....

forum.ih8mud.com

 

[GrungeDog]

Hey guys/gals thanks for all you help!
I've got a new issue, the undercarriage on my 01' lx470 I just bought is not great. Wondering if anyone has experience using -

Cosmoline RP-342"Heavy" Rust Preventative Spray (Military-Grade)​

Found a guy via facebook marketplace using the stuff- He said "I charge $600 and it takes about 6-8hrs. I scrape all flaking rust and brush welds with the steel brush and other bad spots. I spray a rust reformer on which is an acid base that kills the rust then I coat with the wax based sealant RP-342. I usually use about 8 cans per truck and lay it thick."

Are there any draw backs to using this product? Is there a better option?

Winter is coming and can't let this rust spread anymore. Only wish I had garage space and lift to do it myself.....thanks for you time and knowledge

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Lots of threads on the topic. Not sure if you've used the search here yet, but it's pretty handy

Rust proofing with cosmoline

Well still haven't made a purchase of anything, too busy. This fluid film is much cheaper than a lot of other options. Their website says u cant spray it with a pump sprayer in the faq. ****e. I imagine i can take it to work and use some air there. How messy and smelly is it applying this stuff...

forum.ih8mud.com

Rust advice - trailer hitch

I searched for a general/running rust advice thread, but didn’t find one…sorry for posting another one… Is this rust on the hitch anything to be concerned about? Or just treat/convert it and move on? Thanks in advance!

forum.ih8mud.com

Fixing Frame Rot

Hi all, I just bought an '01 LX470. I've been a Jeep guy for years, so this is new territory for me. Because of Covid I couldn't travel to a rust free state and so i bought one in New Jersey. The rig is sweet but there is definitely rust. I found a company in Rhode Island called Auto Rust...

forum.ih8mud.com

Another Rust thread unfortunately

Hey everyone, fairly new owner here of a 1998 White 100 series. I got it from my aunt for a good price, but the amount of rust is concerning. Think I may only be using it for off-roading based on the severity of the rust. Let me know your thoughts. Again it’s a Michigan vehicle....

forum.ih8mud.com

Great thank you

 

[nissanh]

Great thank you

Do not apply under body sealant.

 

[GrungeDog]

Do not apply under body sealant.

Why not?

 

[Moridinbg]

Lots of them allow moisture to get trapped underneath and leat to even worse corrosions. There are lots of nooks and crannies where you can't reach to remove the hidden rust, unless a lot of stuff is removed and then reinstalled. The rust never stops.

Wax sealant should be fine, as it does not create a hard film.

 

[jerryb]

Search corroseal on mud. I wouldn't use anything else. I wish I would have found this when I was in my 30's. It's white and very runny, it dries clear and extremely hard. So it you don't want to paint over it for down the road tire kickers you can just point at and look/compare.

 

[GrungeDog]

Lots of them allow moisture to get trapped underneath and leat to even worse corrosions. There are lots of nooks and crannies where you can't reach to remove the hidden rust, unless a lot of stuff is removed and then reinstalled. The rust never stops.

Wax sealant should be fine, as it does not create a hard film.

Thanks for the suggestion, found a place near by doing woolwax treatments will be going that direction

 

[unleashd]

I recently had my undercarriage coated with a Woolwax / Lanolin based product. One heads up for you...If you plan to do any other work under the truck in the next few months, I'd advise you to get all that work done BEFORE you have it coated. The product lays down pretty thick, and doesn't dry up. So, you will be an oily mess whilst working under there. The good part is that even if you smudge up the coating, it still leaves an oily film on the areas that were coated.

 

[GrungeDog]

I recently had my undercarriage coated with a Woolwax / Lanolin based product. One heads up for you...If you plan to do any other work under the truck in the next few months, I'd advise you to get all that work done BEFORE you have it coated. The product lays down pretty thick, and doesn't dry up. So, you will be an oily mess whilst working under there. The good part is that even if you smudge up the coating, it still leaves an oily film on the areas that were coated.

good to know thank you