Skip to content

CitriSurf

Clean and passivate stainless steel with citric acid-based CitriSurf®. Safely and effectively passivate, remove contaminants, rust and free iron from the surface of stainless steel.

Citrisurf Stainless Passivation and Rust Removal Comparison
  Citrisurf 77 Citrisurf 77 Plus Citrisurf 2210 Citrisurf 2310
Passivates Stainless Steel Yes Yes Yes Yes
Removes Rust No Yes No Yes
Liquid/Gel Liquid Liquid Gel Gel
Sizes Available


Filters

$
$
We're here to help

CitriSurf 77 - 22 oz. Bottle

CitriSurf
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99
In stock

Trigger spray bottle provides a convenient application method CitriSurf® 77 is a high quality blend of chemicals formulated for the cleaning and ...

View full details
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99

CitriSurf 77 Liquid - Gallon

CitriSurf
$55.99 - $55.99
$55.99
$55.99 - $55.99
$55.99
In stock

CitriSurf® 77 is a high quality blend of chemicals formulated for the cleaning and passivation of stainless steel products. It is provided in a ga...

View full details
$55.99 - $55.99
$55.99
$55.99 - $55.99
$55.99

CitriSurf 77 Liquid - 5 Gallon Carboy

CitriSurf
$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99
In stock

The 5 Gallon Bulk Container is the Most Economical Choice for Large Stainless Passivation Jobs CitriSurf® 77 is a high quality blend of chemicals ...

View full details
$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99

CitriSurf 77 Plus - 22 oz. Bottle

CitriSurf
$25.99 - $25.99
$25.99
$25.99 - $25.99
$25.99
In stock

Removes Rust and Passivates Stainless Steel CitriSurf® 77 Plus is a high quality blend of chemicals formulated for cleaning, rust removal and pass...

View full details
$25.99 - $25.99
$25.99
$25.99 - $25.99
$25.99

CitriSurf 77 Plus Liquid - Gallon

CitriSurf
$63.99 - $63.99
$63.99
$63.99 - $63.99
$63.99
In stock

CitriSurf® 77 Plus is a high quality blend of chemicals formulated for cleaning, rust removal and passivation of stainless steel products. It is p...

View full details
$63.99 - $63.99
$63.99
$63.99 - $63.99
$63.99

CitriSurf 77 Plus Liquid - 5 Gallon Carboy

CitriSurf
$224.99 - $224.99
$224.99
$224.99 - $224.99
$224.99
In stock

The 5 Gallon Bulk Container is the Most Economical Choice for Large Stainless Passivation/Rust Removal Jobs. CitriSurf ®77 Plus is a high quality ...

View full details
$224.99 - $224.99
$224.99
$224.99 - $224.99
$224.99

CitriSurf 2210 Spray Gel

CitriSurf
$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99
In stock

Now available in a spray bottle for smaller jobs. CitriSurf® 2210 is a high quality blend of chemicals formulated for the cleaning and passivation...

View full details
$29.99 - $29.99
$29.99
$29.99 - $29.99
$29.99

CitriSurf 2210 Gel - Gallon

CitriSurf
$72.99 - $72.99
$72.99
$72.99 - $72.99
$72.99
In stock

CitriSurf® 2210 is a high quality blend of chemicals formulated for the cleaning and passivation of stainless steel products. It is provided in a ...

View full details
$72.99 - $72.99
$72.99
$72.99 - $72.99
$72.99

CitriSurf 2210 - 5 Gallon Carboy

CitriSurf
$280.99 - $280.99
$280.99
$280.99 - $280.99
$280.99
In stock

The 5 Gallon Bulk Container is the Most Economical Choice for Large Stainless Passivation Jobs. CitriSurf® 2210 is a high quality blend of chemica...

View full details
$280.99 - $280.99
$280.99
$280.99 - $280.99
$280.99

CitriSurf 2310 Spray Gel

CitriSurf
$32.99 - $32.99
$32.99
$32.99 - $32.99
$32.99
In stock

Now available in a 22 oz. spray bottle for smaller jobs. CitriSurf® 2310 is a high quality blend of chemicals formulated for cleaning, rust remova...

View full details
$32.99 - $32.99
$32.99
$32.99 - $32.99
$32.99

CitriSurf 2310 Gel - Gallon

CitriSurf
$79.99 - $79.99
$79.99
$79.99 - $79.99
$79.99
In stock

CitriSurf 2310® is a high quality blend of chemicals formulated for cleaning, rust removal and passivation of stainless steel products. It is prov...

View full details
$79.99 - $79.99
$79.99
$79.99 - $79.99
$79.99

CitriSurf 2310 - 5 Gallon

CitriSurf
$284.99 - $284.99
$284.99
$284.99 - $284.99
$284.99
In stock

The 5 Gallon Bulk Container is the Most Economical Choice for Large Stainless Passivation/Rust Removal Jobs. CitriSurf® 2310 is a high quality ble...

View full details
$284.99 - $284.99
$284.99
$284.99 - $284.99
$284.99

CitriSurf Copper Sulfate Passivation Test Kit

CitriSurf
$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99
In stock

Test Stainless Steel to see if iron is present on the surface. This test kit includes everything you'll need to test Stainless Steel (except 400 gr...

View full details
$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99

CitriSurf Copper Sulfate Passivation Test - 1 Liter Bottle Refill

CitriSurf
$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99
Ships in 1 to 2 weeks

1 Liter Bottle Copper Sulfate Passivation Test Bulk Liquid refill. Liquid only. Apply a small amount of Citrisurf® Copper Sulfate solution to your ...

View full details
$209.99 - $209.99
$209.99
$209.99 - $209.99
$209.99
22 oz Sprayer and Bottle for 77/77 Plus Liquids

22 oz Sprayer and Bottle for 77/77 Plus Liquids

CitriSurf
$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99
In stock

Refillable Spray Bottle for CitriSurf 77 and 77 Plus Liquid Formulations Spraying is often the most convenient way to apply CitriSurf to stainles...

View full details
$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99
22 oz Sprayer and Bottle for 2210/2310 Gels

22 oz Sprayer and Bottle for 2210/2310 Gels

CitriSurf
$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99
In stock

Refillable Spray Bottle for CitriSurf 2210 and 2310 Gels Spraying is often the most convenient way to apply CitriSurf to stainless steel. Use thi...

View full details
$5.99 - $5.99
$5.99
$5.99 - $5.99
$5.99

Spigot for 5 Gallon Carboy

CitriSurf
$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99
In stock

For use with 5 gallon carboys of CitriSurf® 77 and CitriSurf 77 Plus. This spigot is exactly the right size to fit the cap on the 5 gallon carboys ...

View full details
$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99
Wrench for 5 Gallon Carboy
Sold out

Wrench for 5 Gallon Carboy

CitriSurf
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99
Out of stock

For easier opening of 5 gallon carboys of CitriSurf® 77 and CitriSurf 77 Plus. This wrench is exactly the right size for opening the cap on the 5 g...

View full details
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99
Sold out

CitriSurf Brass/Bronze Cleaner

CitriSurf
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99
In stock

Remove Tarnish from Brass and Bronze CitriSurf® Brass/Bronze Cleaner is a citric acid based formula that safely and effectively cleans and removes...

View full details
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99

CitriSurf 77 For Boiler/Heat Exchanger

CitriSurf
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99
In stock

Remove Scale from Boilers and Heat Exchangers CitriSurf® 77 is a citric acid based formula that safely and effectively removes limescale deposit...

View full details
$22.99 - $22.99
$22.99
$22.99 - $22.99
$22.99
Save 10% Save %

Stainless Steel Rust Kit - Liquid - Small

CitriSurf
$109.96
$109.96 - $109.96
$109.96
$98.96
$98.96 - $98.96
$98.96
In stock

Everything Needed for Stainless Steel Rust Removal, Passivation and Prevention Kit Contains: 22oz CitriSurf® 77 Plus – Remove Rust and Passivate ...

View full details
$109.96
$109.96 - $109.96
$109.96
$98.96
$98.96 - $98.96
$98.96
Save 10% Save %
Save 10% Save %

Stainless Steel Rust Kit - Gel - Small

CitriSurf
$113.96
$113.96 - $113.96
$113.96
$102.99
$102.99 - $102.99
$102.99
In stock

Everything Needed for Stainless Steel Rust Removal, Passivation and Prevention Kit Contains: 22oz CitriSurf® 2310 – Remove Rust and Passivate 1 Q...

View full details
$113.96
$113.96 - $113.96
$113.96
$102.99
$102.99 - $102.99
$102.99
Save 10% Save %

CitriSurf is a registered trademark of Stellar Solutions, Inc., McHenry, IL US.

Questions & Answers

What is the difference between CitriSurf 77 and CitriSurf 77 Plus?

Both CitriSurf 77 and CitriSurf 77 Plus passivate stainless steel by removing contaminants and free iron from the surface. The key difference is that CitriSurf 77 Plus contains additional rust-removing additives, making it the better choice when visible rust or corrosion is already present on the surface.

What surfaces are CitriSurf products NOT compatible with?

CitriSurf products will cause damage to concrete, carbon steel, zinc, and galvanized steel. If there is an accidental spill onto any of these materials, rinse immediately with water. PVC pipe and fittings made from copper, brass, or bronze are also not recommended for long-term use with CitriSurf. CitriSurf is safe to use on fiberglass and will not cause damage.

Will CitriSurf damage or alter the finish of my stainless steel?

No. Unlike nitric acid-based passivation products, CitriSurf does not etch stainless steel and will not change the surface finish. In fact, CitriSurf will enhance the brightness of stainless steel when used as directed. As a precaution, it is always a good idea to test a small area before full application, particularly on stainless steel grills and home appliances.

Related Articles & Videos

Talk to a Rust Specialist

Our Rust Specialists have hands-on rust removal and rust prevention experience, so you can get advice on selecting the right product for your needs.

1-877-256-9301
productspecialist@theruststore.com
Monday through Friday, 8 a.m. - 4 p.m. CT