Vehicle Undercoating Products?

[Skin]

Replaced the calipers on the daily driver and saw the factory undercoating in the wheel wells (looks similar to bed liner) is starting to peel off. Is there any "best product" for this? Quick google search pulled this stuff up but not too sure about the durability.

http://www.amazon.com/dp/B002H9CMCQ/?tag=atomicindus08-20

Wonder if I should literally use a bed liner....

 

[Old Bill]

I live in the snow/salt belt for and never had an undercoat like you describe. The problem with that type is if there is a hole in the undercoating the water/salt will go in and sit there causing further corrosion.
In 1984 I bought a new car and had a product called Rust Check sprayed. Its a fine oil and they drill access holes in various body parts and spray it in. It has to be done annually. It will drip for a day or two. After 10 years I sold the car and moved west. There was not one spot of rust anywhere.
As far as your question goes I would probably try a bed liner.

 

[Skin]

Yea this stuff looked a lot like bed liner, scaled/chunky and plastic in appearance. Its an 03 CRV fwiw. I touched it and it wants to peel off so the adhesion is pretty much gone. Im sure I could just scrape it clean with little effort. The actual wheel well underneath at the areas where its exposed looks fine.

 

[TDLMOMOWERS]

Scrape off any loose material. Get it real clean, maybe a wire brush could be used. Apply a good coating of bedliner material with a heavy, disposable brush. Make sure and wear a good quality vapor mask while applying the bedliner material. This stuff will screw you up if you breathe it.

 

[bdiddy80]

Look into fluid film for undercoating, forget tar undercoat junk

 

[CJKaz]

Several aerosol products in 3M's body Schutz line:

http://3mcollision.com/products/sound-deadening

Available at auto body supply house, online, NAPA. If the peeling material is on a plastic fender liner (front) it was applied after the fact. Very difficult to get anything to bond (except road striping paint).

 

[pop pop]

If it is on plastic, it is a sound deadner, not corrosion protectant. If on steel, it does both. Product I've used is Quaker State's Quaker Coat. Make sure it is CLEAN under coating or it won't adhere. 3-M products are top line too. Cleaning will be the most important and hardest part of the work.

 

[mikebramel]

Bed liner undercoating cracks and seals moistuer in. Been there done that. Fluid Film AR through a airless sprayer is by far the best way to go