what is temperature range black star can be app.

Q: What is the optimal temperature at which a Rust Converter should be applied A: Rust Converter should be applied when the air and surface temperature is between 50 and 100 degrees F. Do not apply in direct sunlight or in very damp conditions.

Does this product have to be rinsed after applying before painted?

Good Question! Black Star converts all your rust into an inert black polymer resin(kinda like a hard plastic) that can be used as a primer for painting. Overspray that does not come into contact with rust will dry to a waxy film that should be washed off before top coating. However, if you're not repainting surface then you can leave the unconverted overspray on and the environment(rain, snow, wind) will cause it to degrade away. Thank you for your interest in Black Star !

Is it effective on radiators?

If its made of steel and its rust it should work, most automotive radiators are not made of steel as far as I know, probably made of brass, copper or aluminum, (that's "corrosion" most likely not rust) I don't know about a "in the home type" old fashioned cast iron heat radiator though, but if its truly rust that you have I feel it should work just fine.

Can this be top coated with oil based enamel paint?

Absolutely. Black Star acts as an excellent primer for any oil based top coat. Great question & thank you for your interest in our products!

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Black Star Gallon

Product ID: 19735235

Details

Brand
BLACK STAR
Finish Type
Semi-Gloss
Indoor/Outdoor Usage
Indoor Outdoor
Item Volume
1 gallons
Paint Type
Rust Converter
Size
1 Gallon

🎨Effective paint primer & finish

⚙️Advanced rust conversion tech

🛡️Permanent corrosion-resistant coating

€ 268.37

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Description

🛠️ Stop rust dead in its tracks—convert, protect, and prime like a pro!

BUILT IN RUST IMMUNITY - Seals out moisture with a hard, black resin that stops rust from ever coming back.
EFFORTLESS APPLICATION - Spray, brush, or roll on for instant rust treatment—no grinding or blasting required.
PAINT READY PERFECTION - Acts as a flawless primer for vivid, long-lasting paint finishes.
UNIVERSAL METAL SAVIOR - Works on everything steel—vehicles, fences, roofs, tools, and industrial gear.
RUST CONVERSION REVOLUTION - Transforms rust into a sleek, protective polymer—no sanding or scraping needed.

BLACK STAR MRO Chem Rust Converter is a 1-gallon advanced rust treatment that chemically transforms rust on any steel surface into a durable, black polymer resin. This waterproof coating permanently halts corrosion, acts as a superior paint primer, and covers up to 500 sq ft per gallon. Ideal for industrial, automotive, and home use, it eliminates the need for sanding or scraping, making rust protection effortless and long-lasting.

Specifications

ASIN	B01283DMGA
Best Sellers Rank	#23,487 in Automotive ( See Top 100 in Automotive ) #104 in Care Corrosion & Rust Inhibitors
Brand	BLACK STAR
Brand Name	BLACK STAR
Customer Reviews	4.4 out of 5 stars 566 Reviews
Finish Type	Semi-Gloss
Indoor Outdoor Usage	Indoor, Outdoor
Is Waterproof	True
Item Volume	1 gallons
Item Weight	8 pounds
Manufacturer	MRO Chem
Model Number	5823898652
Paint Type	Rust Converter
Part Number	BlackStarRustConverter/1gallon
Size	1 Gallon
Special Feature	Acts as a Primer after conversion, Chemical Formula to seal out moisture, No Sanding, No Wire Wheeling, No Scraping Special Feature Acts as a Primer after conversion, Chemical Formula to seal out moisture, No Sanding, No Wire Wheeling, No Scraping See more
Special Features	Acts as a Primer after conversion, Chemical Formula to seal out moisture, No Sanding, No Wire Wheeling, No Scraping
Specific Uses For Product	Rust Converter
Surface Recommendation	Steel
UPC	193802256024
Unit Count	128 Fluid Ounces
Water Resistance Level	Waterproof

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€ 268.37

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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