Can this be used on the insde of a motorcycles gas tank?

No, I think. There are other special coatings made for that specific application.

can it be used on bare metal or does the metal need to be etch primed first?

It is recommended that it be applied directly on bare metal. I used a wire brush attachment on a drill to remove as much of the rust off as possible, then painted directly on the metal.

I can remove the rust, from my table saw. I want prevent it from rusting again.

If you can remove all the rust. Then I would remove all of it clean it good and use a self etch primer and oil base paint. I wasn’t happy with Smaphy’s product. I followed their half as directions and it never cured.

Is this heat resistant and can it be used on engine components?

The heat resistance of this product is about 400 degrees.

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2 in 1 Rust Converter & Metal Primer, Rust Reformer Paint for Metal, Heat-Resistant Rust Encapsulator & Inhibitor with Long-Term Protection, Semi-Gloss Black

Product ID: 552832766

Details

Brand
Smaphy
Colour
No.02 Black
Finish Type
Semi-Gloss
Size
35 oz
Item Volume
32 Fluid

💧Waterproof & UV resistant

🔥Heat resistant up to 350°F

🛡️2-in-1 rust converter & primer

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¥38804

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Description

🛠️ Stop Rust in Its Tracks — Protect Like a Pro!

ULTIMATE RUST DEFENSE - Transforms stubborn rust into a tough, moisture-sealing barrier for permanent protection.
EFFORTLESS APPLICATION - Simple brush-on formula works on cars, tools, marine gear, and more—no professional skills needed.
HEAT RESISTANT DURABILITY - Withstands extreme temperatures up to 350°F, ideal for engine bays and brake areas.
TRUSTED QUALITY SUPPORT - Made in the USA with dedicated customer service ensuring satisfaction and peace of mind.
SEAMLESS SEMI GLOSS FINISH - Provides a sleek black primer coat that blends flawlessly with original metal surfaces.

SMAPHY 2-in-1 Rust Converter & Metal Primer is a 35 oz semi-gloss black specialty paint that permanently stops rust by converting it into a protective coating. It doubles as a primer, offering seamless coverage and heat resistance up to 350°F. Waterproof and UV resistant, this product is perfect for both indoor and outdoor metal surfaces, delivering professional-grade rust protection with easy brush application.

Specifications

Brand	Smaphy
Colour	No.02 Semi-Gloss Black
Finish Type	Semi-Gloss
Size	35 oz
Item Volume	32 Fluid Ounces
Special Feature	UV Resistant
Net Quantity	946.35 Milliliters
Paint Type	Specialty
Specific Uses For Product	Interior/Exterior
Surface Recommendation	Metal
Indoor/Outdoor Usage	Outdoor
Item Form	Liquid
Included Components	Rust Preventive Coating
Age Range (Description)	Adult
Is Waterproof	True
Model Name	SMAPHY Semi-Gloss Black 2-in-1 Rust Converter & Metal Primer
Package Information	Tin
Colour Code	#2F4F4F
Full Cure Time	24 Hours
Coverage	rust and corrosion protection
Water Resistance Level	Water Resistant
Manufacturer	SMAPHY
Dry Time In Hours	24
Color	No.02 Semi-Gloss Black
Shipping Weight	1.25 Kilograms
Item Model Number	AAZ-003
Item Part Number	AAZ-003
Is Assembly Required	No
Capacity	35 oz
Weight	32 Ounces
Country of Origin	USA

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¥38804

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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