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15-Ounce Rust-Oleum Rubberized Undercoating Spray (Black) Expired

$4.50
$10.99
+46 Deal Score
51,062 Views
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
Good Deal?

Original Post

Written by
Edited January 15, 2022 at 07:52 PM by
About this item
  • 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

https://smile.amazon.com/gp/produ...49AS/?th=1
in Auto Parts & Supplies (3)
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Deal
Score
+46
51,062 Views
$4.50
$10.99

Price Intelligence

Model: Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray, 15 oz, Black

Current Prices

Sort: Lowest to Highest | Last Updated 4/24/2024, 10:31 PM
Sold By Sale Price
Amazon$10.44
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Featured Comments

I've heard from rust belt mechanics that it causes more harm than good
I use this with great success for waterproofing outdoor low voltage landscape wiring connections.
I would not use this under the body of your vehicle. If you're looking into some underbody rust prevention, I would suggest something like Fluid Film.

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Joined Nov 2020
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> bubble2 73 Posts
Rightnitro
01-15-2022 at 04:06 PM.
01-15-2022 at 04:06 PM.
Quote from CheapestDealz :
Correct, it might trap moisture between the metal and the rubber which speed up the rusting. But this is a good deal. Buying 2 for DIY projects.
Please tell me you're joking. The first comment was a good joke. Your comment is plainly false. Any 'moisture' under this application, would not do anything being so miniscule.
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> bubble2 1,351 Posts
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dasein56
01-15-2022 at 07:36 PM.
01-15-2022 at 07:36 PM.
Any uses other than automotive?
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SeriousTerrier997
01-15-2022 at 07:54 PM.
01-15-2022 at 07:54 PM.
Do an underbody wash with water if you ar ein rust belt. This coating (including most others as mentioned above) will do more harm than any good.
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> bubble2 7,252 Posts
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KMan
01-15-2022 at 08:17 PM.
01-15-2022 at 08:17 PM.
What makes this better than the non-pro version? I bought a couple of cans of the latter a while back and would prefer to use them instead of spending yet more on some "pro" version that might not be applicable to me.

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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KMan
01-15-2022 at 08:17 PM.
01-15-2022 at 08:17 PM.
Quote from SeriousTerrier997 :
Do an underbody wash with water if you ar ein rust belt. This coating (including most others as mentioned above) will do more harm than any good.
No, not if used properly. You don't just spray this on. You have to prep first.
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> bubble2 301 Posts
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barackstar
01-15-2022 at 08:25 PM.
01-15-2022 at 08:25 PM.
probably a very obscure use - I sprayed this on the inside of my Onewheel fender to quiet the noise of rocks that get thrown up into it. Two coats at minimum, and make sure to let it dry or you'll end up with embedded sand/pebbles.
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TheTomSawyer
01-15-2022 at 08:53 PM.
01-15-2022 at 08:53 PM.
Quote from barackstar :
probably a very obscure use - I sprayed this on the inside of my Onewheel fender to quiet the noise of rocks that get thrown up into it. Two coats at minimum, and make sure to let it dry or you'll end up with embedded sand/pebbles.
This. Great improvement on the noise.
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OneMadOne
01-15-2022 at 09:32 PM.
01-15-2022 at 09:32 PM.
Quote from Bigbanks :
I use fluid film. I do not live in the rust belt. If you use this stuff, clean and prep the area first. Clean up rust, prime, hit with this.

If your car is new, no rust, putting this on would be okay.
Remember a mechanic, likely south main auto on YT say that rocks will make holes in this. Then water and salt get in and make corrosion worse. This will happen even with a perfectly.clean car.
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texst
01-15-2022 at 09:33 PM.
01-15-2022 at 09:33 PM.
Is this better than 3M's?
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gr8scottaz
01-15-2022 at 09:36 PM.

Our community has rated this post as helpful. If you agree, why not thank gr8scottaz

01-15-2022 at 09:36 PM.
I think this is the stuff the guys on the f150forum were using to spray the underside of the wheel wells on their trucks to quiet them down and get a uniform "black" look inside the wheel well.
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stevenSDer
01-15-2022 at 10:13 PM.
01-15-2022 at 10:13 PM.
Just a reminder, this item is not returnable.
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Joined Oct 2010
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JJB...
01-15-2022 at 10:33 PM.
01-15-2022 at 10:33 PM.
Quote from GrosseIleRobin :
I use this with great success for waterproofing outdoor low voltage landscape wiring connections.

Can you elaborate as to what kind of connections. Sounds helpful
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skwishbot
01-16-2022 at 02:35 AM.
01-16-2022 at 02:35 AM.
Quote from JJB... :
Can you elaborate as to what kind of connections. Sounds helpful
I think he means instead of using these like you're supposed to

https://www.homedepot.com/p/Stark.../318190321
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swingninja
01-16-2022 at 03:54 AM.
01-16-2022 at 03:54 AM.
I usually use PlastiDip. Going to buy one for backup. Thanks.
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AreWeThereYet
01-16-2022 at 03:56 AM.
01-16-2022 at 03:56 AM.
I have some of this Rust Bullet on my shelf that I haven't had time to try...supposed to be good stuff.

RUST BULLET - Automotive Rust Inhibitor Paint - Rust Preventive Protective Coating - No Topcoat Needed - 4 oz Can, Metallic Gray https://smile.amazon.com/dp/B0002...UTF8&psc=1
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