THE ORIGINAL MALTBY RUST PENETRANT
Industrial-grade rust dissolving spray, made with our exclusive R-90 formula, engineered to restore seized hardware in minutes and protect equipment for over a century.
HALF AS MUCH GOES TWICE AS FAR
Engineered for rapid rust breakdown and deep capillary action, Maltby seamlessly draws into the tightest invisible crevices to free seized mechanical assemblies, outperforming standard penetrating oils where tolerances are finest.
Maltby Company
Industrial Rust-Dissolving Chemical Penetrant Spray
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4
GENERATIONS
107+
YEARS IN BUSINESS
100%
AMERICAN MADE
1919
SINCE
TESTIMONIALS
From True "Maltbelievers" From True "Maltbelievers" From True "Maltbelievers"
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Woody | Las Vegas, NV
“I have used Maltby for years. There is no other rust busting penetrant on the market that can even come close to the same strength.”
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Chuck | Portland, OR
“I rebuild WWII tanks, and nothing works like Maltby.”
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Dave | Pacifica, CA
“Maltby is the best in the business. There is nothing that works faster or better.”
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Lenny | Mt. Arlington, NJ
“Man, this stuff works!”
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Legend | Paso Robles, CA
“Dude, Maltby is sick. Nothing like it.”
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Jonathan | Seattle, WA
“When the rust seems to make disassembly impossible, Maltby to the rescue!”
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Amber | San Clemente, CA
“When the squeak drives you crazy, get out the Maltby, spray a little on, and hear the relief.”
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Frank | Austin, TX
“I have always said: if you can’t loosen it with Maltby, then you have to take a blowtorch to it.”
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Ted | Gold Beach, OR
“It's like finding an old friend or a long-lost favorite tool... This product will always have a place on the job.”
GET IN TOUCH
📍 MAILING ADDRESS
957 Laureate Lane
San Luis Obispo, CA 93405
📞 CONTACT US
Phone: +1 (510) 339-1932
Email: maltbycompany@yahoo.com
🕒 OUR HOURS
MON–FRI 9:00am – 5:00pm PT