Amazon has
15-Ounce Rust-Oleum Rubberized Undercoating Spray (Black) on sale for
$4.47.
Shipping is free w/ Prime or on $25+ orders.
Thanks to Community Member
david3808 for posting this deal.
About this Product:
- Perfect for use on bare or primed metal underbodies of cars, trucks, trailers, RVs and more
- Professional-grade formula provides superior protection against corrosion and damage from water, salt and other chemicals
- Dries to the touch in 1 hour and covers up to 10-15 sq. ft. per can
- Undercoating helps deaden sound and reduce damage to parts
- Features a wide, comfort spray tip and any-angle spray technology for easy painting even upside down
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And, for those who don't understand how to use such products, it doesn't go on bare metal, let alone rusty metal. First you remove as much rust as you can, then you treat any remaining rust with rust converting or inhibiting primer, or regular primer if all the rust if gone or it's fresh, clean metal, then you paint over that, and THEN you spray this on. It's not meant to protect against rust, although it indirectly does that by protecting the layers that do that. It's meant to protect against dings from gravel, rocks, debris, etc., perhaps also against road salt, and also soundproof the underside a bit. I used the non-pro stuff on some structural members after preparing them properly as I explained above, and it's held up great, needing just a minor touch-up.
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If your car is new, no rust, putting this on would be okay.
Our community has rated this post as helpful. If you agree, why not thank gr8scottaz
Can you elaborate as to what kind of connections. Sounds helpful
https://www.homedepot.c
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RUST BULLET - Automotive Rust Inhibitor Paint - Rust Preventive Protective Coating - No Topcoat Needed - 4 oz Can, Metallic Gray https://smile.amazon.co