Can this be used fir a base coat for an automotive lacquer paint?

It can on a prepped painted surface. But if your dealing with bare metal I would suggest a self etching primer for better results

Will this work underneath a one part polyurethane boat paint? I want to use it on my aluminum StarCraft boat to fill some bare spots prior to painti

Your bigger issue will be any over spray on any painted area(s). The primer will "bite" the bear metal. but will likely peel off any painted surface causing blisters. You may want to consider stripping the original finish off first.

is this enamel paint?

I don't know, but I got it for priming galvanized steel in preparation for enamel top coat.

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Automotive Universal Bonding Primer Spray, Flat White | Firmly Bonds Topcoats to Difficult Surfaces | Rust Resistant| Fast Dry | Multi Surface | Comfort Tip | Any-Angle Spray

Product ID: 212611348

Details

Brand
Rust-Oleum
Color
Flat White
Finish Type
Matte
Item Volume
12 fluid
Paint Type
paint_type
Size
12 Ounce (Pack

📏Covers 10-12 sq. ft. per can

⏱️Dries in 30 minutes

🛠️Bonds to multiple tough surfaces

€ 30.72

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Prime like a pro, bond like a boss.

FAST DRY FORMULA - Touch dry in just 30 minutes to keep your project moving at millennial speed.
EFFICIENT COVERAGE - Covers up to 12 sq. ft. per can, cutting down on time and cans—because efficiency is the new luxury.
SMOOTH MATTE FINISH - Flat white spray delivers a sleek, ready-to-coat surface for superior paint adhesion and a flawless look.
BROAD SURFACE COMPATIBILITY - Seamlessly bonds to bumpers, plastics, fiberglass, aluminum, and galvanized steel—no surface left behind.
PROFESSIONAL GRADE ADHESION - Creates a durable, lasting bond that ensures your top coat stays flawless and fresh.

Rust-Oleum Automotive Universal Bonding Primer Spray in Flat White is a professional-grade aerosol primer designed for automotive surfaces. It dries to the touch in 30 minutes, covers up to 12 square feet per can, and bonds effectively to challenging materials like plastics, fiberglass, and metals. Its flat matte finish creates an ideal base for top coats, ensuring superior adhesion and long-lasting protection against rust and surface imperfections.

Specifications

ASIN	B086BQW6BB
Age Range Description	Adult
Best Sellers Rank	#67,680 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #232 in Spray Paint
Brand Name	Rust-Oleum
Color	Flat White
Color Code	000000
Container Type	container
Coverage	Up to 10-12 sq. ft.
Customer Reviews	4.6 4.6 out of 5 stars (572)
Finish Type	Matte
Global Trade Identification Number	00020066293833
Included Components	Spray Primer
Indoor Outdoor Usage	Indoor
Is Waterproof	False
Item Form	Aerosol
Item Type Name	Spray Primer
Item Volume	12 fluid ounces
Item Weight	0.31 kg
Manufacturer	Rust-Oleum
Model Name	Automotive
Model Number	286793
Paint Type	paint_type
Part Number	286793
Size	12 Ounce (Pack of 1)
Special Features	special_feature
Specific Uses For Product	Interior
Surface Recommendation	Aluminum
UPC	020066293833
Unit Count	12 Ounce
Water Resistance Level	Water Resistant

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