Will this adhere to a slick surface such as aluminum flashing?

Paint especially rattle cans don't tend to adhere to anything slippery, you must at least use something abrasive against it to some degree even if it's only a scour pad just to rough up the surface a little bit.

Would this work in the spare tire compartment located inside a cars' trunk?

Yes. Works pretty much anywhere

Is the undercoating product acid resistant?

I have no idea I bought it cove a mount for a fish finder. I didn’t like it it didn’t dry maybe I put to thick a coat

Undercoating Rubberized Spray

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Description

🛠️ Spray on strength, silence, and style—because your ride deserves the best!

NOISE REDUCING ARMOR - Deadens road noise and cushions against damage, turning your vehicle into a quieter, tougher ride.
ULTIMATE RUST DEFENSE - Rubberized formula shields metal from corrosion, water, salt & chemicals for long-lasting protection.
EFFORTLESS APPLICATION - Comfort spray tip with any-angle technology lets you spray upside down or in tight spots with ease.
FAST EFFICIENT COVERAGE - Covers up to 12 sq. ft. per can and dries to touch in just 30 minutes—get back on the road faster.
VERSATILE METAL PROTECTION - Perfect for cars, trucks, trailers, and RVs—protect your investment wherever metal meets the elements.

Rust-Oleum 248657 Rubberized Undercoating Spray is a 15 oz aerosol designed to protect vehicle underbodies from rust, moisture, and road damage. It dries quickly in 30 minutes, covers up to 12 sq. ft., reduces road noise, and features an easy-to-use comfort spray tip with any-angle spray technology. Ideal for cars, trucks, trailers, and RVs, it provides durable, water-resistant protection with a matte black finish.

Specifications

ASIN	B003CT49AI
Age Range Description	Adult
Best Sellers Rank	#5,460 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #47 in Spray Paint
Brand	Rust-Oleum
Brand Name	Rust-Oleum
Color	Black
Color Code	12 sq ft
Container Type	Can
Coverage	12 sq ft
Customer Reviews	4.6 out of 5 stars 3,610 Reviews
Finish Type	Matte
Full Cure Time	3E+1 Minutes
Global Trade Identification Number	00020066185985
Included Components	Rust-Oleum Black Undercoating 15 oz. (12 Pack)
Indoor Outdoor Usage	Outdoor
Is Waterproof	True
Item Form	Aerosol
Item Type Name	Rust-Oleum Black Undercoating 15 oz. (12 Pack)
Item Volume	443.6 Milliliters
Item Weight	14.8 Ounces
Manufacturer	Rust-Oleum
Model Name	Automotive
Model Number	248657
Paint Type	Spray
Part Number	248657
Size	15 Ounce (Pack of 1)
Special Feature	Rust Resistant
Special Features	Rust Resistant
Specific Uses For Product	Exterior
Surface Recommendation	Metal
UPC	020066185985
Unit Count	15.0 Ounce
Warranty Description	Warranty
Water Resistance Level	Water Resistant

Reviews

G**Y

10.12.2025

S**S

31.03.2026

M**.

1.12.2025

B**C

13.04.2026

J**N

20.12.2025

P**S

9.04.2026

N**G

12.11.2025

D**K

22.03.2026

K**U

27.12.2023

M**M

25.11.2023

A**I

6.06.2025

O**M

2.04.2026

B**Z

27.08.2025

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Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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