Name: Rust-Oleum Automotive Self Etching Flat Gray Oil-based Spray primer ( NET WT. 12.0-oz )
Brand: Rust-Oleum
SKU: 3728805
Price: 11.48 USD
Availability: InStock
Rating: 4.6 (164 reviews)

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Rust-Oleum Self Etching Primer is designed to prepare bare metal, aluminum and fiberglass surfaces to promote maximum adhesion and smoothness of the topcoat finish. Self Etching Primer features an advanced spray system that allows you to spray at any angle, even upside down for those hard to reach areas. A comfort spray tip with a wider finger pad reduces fatigue caused by continuous spraying.

Rust-Oleum Automotive self etching primer prepares bare metal, aluminum and fiberglass surfaces for painting, promoting maximum adhesion and smoothness of the top coat
Etches, primes and prevents rust in one easy step
Oil-based formula resists damage from weather and is an essential step to achieving a professionally finished look
Covers up to 12 sq ft and dries in 10 minutes for quick project completion
Creates a primed flat sheen
Formulated with Stops Rust technology that delivers a durable, rust and corrosion resistant coating
Comfort spray tip reduces finger fatigue and any-angle spray delivery makes it easy to paint hard to reach places

General
Color/Finish Family	Gray	Package Quantity	1
Manufacturer Color/Finish	Gray	Use Location	Interior/Exterior
Sub-Brand	Automotive Self Etching	Maximum Working Temperature (Fahrenheit)	90
Type	Spray primer	Transparency	Opaque
Sheen	Flat	Clean-up Method	Mineral spirits
Base Material	Oil-based	Actual Net Contents (oz.)	12

Dimensions
Maximum Coverage Area (Sq. Feet)	15

Features
Combustible	Yes	Minimum Working Temperature (Fahrenheit)	50
Dry to Recoat (Minutes)	30	Moisture Resistant	Yes
Dry to Touch	30-60 minutes	Paint and Primer in One	No
Fade Resistant	No	Primer Required	No
Flammable	Yes	Rust Preventative	Yes
High Heat	No	UV Resistant	No
Inverted Spray Ability	Yes	Water Resistant	No
Low Odor	No	Professional Artist Spray Paint	No
Mildew Resistant	No	Interchangeable Spray Cap	No

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -

Warranty
Warranty	None

Compatibility
For Use on Plastic	No	For Use on Vinyl	No
For Use on Stone	No	For Use on Automotive	Yes
For Use on Metal	Yes	For Use on Fabric	No
For Use on Wood	No	For Use on Appliances	No
For Use on Concrete	No	For Use on Styrofoam	No
For Use on Glass	No	For Use on Farm Equipment	No

Miscellaneous
UNSPSC	31211500

Check out the Best Selling Spray Paint on Lowes.com

Review

4.6 out of 5

164 Reviews

95% Recommend this product

Ratings may include incentivized customer reviews.

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+ 3

What Customers Are Saying

Customers overwhelmingly praise this self-etching primer for exceptional adhesion to bare metal, aluminum, steel, and galvanized surfaces without peeling or flaking. Many highlight its smooth spray pattern, quick drying time, and ability to work on rusted or previously painted metal without extensive prep. The upside-down spray capability and clear nozzle design earn frequent commendation for reaching difficult areas. Reviewers consistently describe application as effortless, with reliable performance across automotive, plumbing, and marine projects. A few report isolated nozzle defects, but most consider this an outstanding, must-have base coat.

Customer review summary generated by AI, including incentivized reviews.

164 Customer Reviews

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aluminum base coat

Would Recommend

used it to primer an aluminum outdrive. it worked well and the top coat adheared well.

rt rtOctober 10, 2026
Verified Purchaser

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Excellent for outdoor metal furniture

Excellent to use on outdoor metal furniture. Protects from rust and bonds well.

mtr34October 7, 2026
Verified Purchaser

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Great

Wonderful paint

ChiefOctober 2, 2026
Verified Purchaser

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Great self etching paint

Would Recommend

Been renovating an old Coleman crawdad boat. Aluminum poles were pretty scuffed. This paint adhered and filled spots then used a silver paint over top. Worked great.

KingJimOctober 1, 2026
Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/4571354f-4a66-59a4-8b68-ee9591ce39df

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This primer helps the final coat especially for wrought iron projects so much!

Gmitch17September 30, 2026
Verified Purchaser

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Works as described.

Would Recommend

Bought primer for a project. It works. Time will tell.

TtttSeptember 19, 2026
Verified Purchaser

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Great coverage works well

Would Recommend

Great product I used it several times on my aluminum boat

LipsSeptember 18, 2026
Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/e7b0d038-6670-5eb6-a693-40a6e3277b90

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Worked great

SpatlessSeptember 13, 2026
Verified Purchaser

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Spray paint outdoors

Would Recommend

Adhered great on my aluminum boat. Looks sleek too!

DerekSeptember 9, 2026
Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item Rust-OleumAutomotive Self Etching Flat Gray Oil-based Spray primer ( NET WT. 12.0-oz )
		Ratings	164
		Sheen	Flat
		For Use on Metal
		Type	Spray primer
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5	2031	2175	362	2034	67	18	2031	41
Flat	Flat	Flat	Flat	Gloss	Flat	Flat	Semi-gloss	Gloss

Spray paint	Spray paint	Spray primer	Spray primer	Spray paint	Spray primer	Spray paint	Spray paint	Spray paint and primer in one

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