Can you spray this over rust? And if you can, won't this spray just coat the rust while the rust eats away the metal underneath?

Don't spray it over rust, treat or repair the rust first. More than one undercoating job has actually made rust worse by trapping water and it eats away from the inside out and you'd never know until something falls apart.

I am considering using this product on my Jeep plastic fenders and bumpers. Has anyone done this?

I used this to undercoat the cab fenders and running boards on my 49 Chevy pickup but they were steel not sure about plastic.

How long does it take to dry?

It took about 24 hours to fully dry. That was in 100° weather too.

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3M - 03584-6PK Professional Grade Rubberized Undercoating, 03584, 16 oz

3M - 03584-6PK Professional Grade Rubberized Undercoating, 03584, 16 oz

Product ID: 12920598

Details

Brand
3M
Color
Black
Finish Type
Eggshell
Size
2.67 Ounce of
Item Volume
16 Fluid
Special Feature
Crack

🔇Sound deadening tech reduces road noise

🚗Multi-surface automotive protection

🛡️16 oz rubberized corrosion shield

AR$326417

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Description

🛠️ Shield your ride, silence the road, and stay ahead of rust!

EFFORTLESS SPRAY ON - Aerosol dispenser ensures smooth, even coverage
QUIETER RIDES AHEAD - Advanced sound deadening for a peaceful drive
ULTIMATE RUST DEFENSE - Seals out moisture and grit to extend vehicle life
VERSATILE APPLICATION - Perfect for wheel wells, fenders, and undercarriage
PROFESSIONAL GRADE QUALITY - Trusted by industry pros for durable protection

3M 03584-6PK Professional Grade Rubberized Undercoating delivers a durable 16 oz aerosol spray that protects vehicles from rust, abrasion, and road noise. Ideal for cars, trucks, and recreational vehicles, it creates a resilient barrier on wheel wells, fenders, and undercarriage surfaces, extending vehicle lifespan with professional-grade reliability.

Specifications

ASIN	B005W0OXUG
Best Sellers Rank	#429,342 in Automotive ( See Top 100 in Automotive ) #152 in Automotive Primers
Customer Reviews	4.6 4.6 out of 5 stars (402)
Department	unisex-adult
Item Weight	1.35 pounds
Item model number	03584-6PK
Manufacturer	3M
Product Dimensions	10.1 x 8.4 x 5.6 inches

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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AR$326417

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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Customer service was outstanding when I had questions about the product.

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