Can you put rust-oleum dry erase paint over top of this?

I did, magnets would not attract to the wall. Had to use twice as much of the dry erase paint as it called for.

Some have mentioned the rough texture, or "goopiness", clumps, and/or drips. Can this be sanded to smooth between the many coats, and not affect it?

It does have a texture. I would not say it was rough. I did not have any goopiness, clumps and drips. I am not sure if you can sand it or not.

How long should I wait for the paint to dry(4 coats), so I can paint it over with the chalkboard paint?

One layer could be about 30-45 minutes. It won’t do 4 layers on a large surface. You’ll need more

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Magnetic Coating Black Primer

Product ID: 4100839

Details

Brand
Rust-Oleum
Color
Black
Finish Type
Matte
Item Volume
0.89 liters
Paint Type
Enamel
Size
1 Quarts (Pack

🎨Flat charcoal finish, paint-ready

🧲Real metal particles for strong magnetism

⏱️Dries to touch in 30 minutes

£69.34

Duties & taxes included

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Description

🧲 Turn any wall into a magnetic masterpiece—because your ideas deserve to stick around!

FAST DRY FORMULA - Touch dry in just 30 minutes—perfect for quick project turnarounds and instant creativity.
CUSTOMIZABLE FINISH - Flat charcoal primer that pairs seamlessly with latex or chalkboard paints for a personalized look.
MAGNETIZE YOUR SPACE - Transforms any interior surface into a sleek magnetic board for notes, photos, and more.
PREMIUM MAGNETIC STRENGTH - Contains real metal particles; best results with rare earth magnets for a powerful hold.
VERSATILE SURFACE COMPATIBILITY - Applies smoothly on wood, metal, drywall, plaster, and masonry—no limits to your design.

Rust-Oleum Magnetic Coating Black Primer is an oil-based, charcoal matte primer infused with real metal particles that creates a magnetic surface on various interior materials. It covers up to 16 sq ft per quart, dries to the touch in 30 minutes, and is ideal for transforming walls into functional, stylish magnet boards. Compatible with top coats like latex or chalkboard paint, it’s perfect for organizing and decorating spaces with a modern, interactive twist.

Specifications

ASIN	B003ZW7XL4
Age Range Description	Adult
Best Sellers Rank	#399,683 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #266 in Primer Paint
Brand	Rust-Oleum
Brand Name	Rust-Oleum
Color	Black
Color Code	Black
Container Type	Can
Coverage	16 sq ft
Customer Reviews	3.7 out of 5 stars 676 Reviews
Dry Time In Hours	24
Finish Type	Matte
Full Cure Time	3 days
Global Trade Identification Number	00020066193652
Included Components	30 oz. Charcoal Magnetic Primer Paint
Indoor Outdoor Usage	Indoor
Is Waterproof	False
Item Form	Liquid
Item Type Name	Magnetic Primer
Item Volume	0.89 liters
Item Weight	2.06 kg
Manufacturer	Rust-Oleum
Model Name	Specialty Magnetic Primer
Model Number	247596
Paint Type	Enamel
Part Number	247596
Size	1 Quarts (Pack of 1)
Special Feature	Magnetic
Special Features	Magnetic
Specific Uses For Product	Interior
Surface Recommendation	Masonry,Metal,Wood
UPC	020066193652
Unit Count	1 Count
Warranty Description	Warranty
Water Resistance Level	Not Water Resistant

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