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White 5 Ounce Tube With A Black Cap, White and Blue Lettering, and a Blue Color with an Airplane LogoWhite Tube With A White Cap, Blue Color Graphics, and an Airplane and Cloud Logo


Cor-Ban® 27L has been formulated to function as a non-drying, wide temperature range, corrosion inhibiting compound for static joint applications on a multitude of substrates.

A thixotropic, buffcolored film that can be achieved on any metal surface and will maintain a flexible protective coating that will withstand high ultra violet exposure in highly corrosive environments.

Cor-Ban® 27L is a chromate free paste that has been approved as a replacement for chromate containing noncuring pastes.

For inservice applications, please contact the appropriate manufacturer's service engineering for details.

Application of Product

Cor-Ban® 27L can be applied with spatula or brush at reasonable ambient temperatures. Pre-heating the product to 100-120°F will aid its spreading properties.

Cor-Ban® 27L is available in a Semco cartridge that fits into a standard pneumatic or ratchet sealant gun that is common in the industry.

Cor-Ban® 27L can be applied at room temperature or at elevated temperature depending on the desired type of coverage.

Removal of the coating is achieved by wiping off all excess material and flushing part or wiping part with a rag soaked with Zip-Chem® Sur-Prep® 3160, the D-5640NS Degreaser, Sur-Prep® 3167, or mineral spirits.

MEK and other ketones will not remove Cor-Ban® 27L from the substrate.


Cor-Ban® 27L exhibits an extremely smooth and uniform paste like consistency without any lumps or grit. It will yield a smooth, non-drying, and even film that will yield excellent corrosion resistance.

The product contains no chromates, asbestos, MoS2, or graphite.

The working temperature range for Cor-Ban® 27L is typically -65°F to 180°F, but it has been successfully used in gearbox applications where temperatures can reach as high as 280°F. It can also withstand brief exposure to temperatures as high as 500°F with little impact on it's corrosion protective properties.

  • Coats Intricate Parts
  • Excellent Corrosion Inhibiting Compound
  • Low Odor
  • Non Drying
  • Non-Toxic
  • User Safe
  • Wide Temperature Applications


Physical Properties

  • Color: Amber/Tan
  • Corrosion Resistance (ASTM B-117 Steel): >4000 hrs
  • Density: 7.41 lbs/gal
  • Drying Resistance: 7 days @ 160°F: pass
  • Flow Point: No flow @ 160°F: pass
  • Fungal Growth per Fed-STD-810 Method 508.7: 0 (No Microbial Growth)
  • Low Temp Adhesion: <1/32" @ -65°F: pass
  • Non Volatiles Minimum: 90%
  • Recommended Dry Film Thickness: 2 mils


5 oz Tube (009402)

6 oz Semco Cartridge (009403)

Gallon (009406)

14 oz Grease Cartridge (009873)

Pint (009404)

Quart (009405)

5 Gallon Pail (002099)

Special packaging upon request

Download technical data sheet of Cor-Ban® 27L by clicking on the TDS button below

Contact Zip-Chem® Products

Contact Zip-Chem® Products to request Cor-Ban® 27L packaging and the Cor-Ban® 27L SDS.

Submit An Image, Video, Or Document

Click here to submit an image, video, or document of a Cor-Ban® 27L inquiry or corrosion challenge that you are facing.

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