Cortec MCI®-309 Corrosion Inhibiting MCI Powder for Ferrous Metals, Patented

Product Description

MCI®-309 is a powder-based Migrating Corrosion Inhibitor™ for protection of ferrous and aluminum metals located in recessed areas, interior cavities, and structural voids.

MCI®-309 provides an extremely efficient dry method of protecting metals within an enclosed space. Upon application, it vaporizes and forms a molecular layer of corrosion inhibitors on the metal surface. If this layer is ever compromised (for example, by moisture or by opening the enclosed space), it will be automatically replenished by new vapor being continuously released from the powder carrier. 

UFI: 8SF0-W0CG-Y00U-EK3A

Packaging and Storage

Available in 5 lb (2.3 kg) pails and 50 lb (23 kg) and 100 lb (45 kg) lined drums.

To ensure best product performance, store in original packaging, indoors, and out of direct sunlight at 40-100 °F (4-38 °C). 

Shelf life: 2 years

How it Works

MCI®-309 is a powder-based, organic corrosion inhibitor. The corrosion inhibiting molecules in MCI®-309 vaporize into the air, travel through it, and adsorb onto metal surfaces to form a protective layer for corrosion protection. MCI®-309 is considered ambiodic (mixed), meaning it protects both anodic and cathodic corrosion sites of the metal. MCI®-309 vapor is capable of reaching all exposed metal surfaces, including recessed sections, interior cavities, and voids, thus providing autonomous corrosion protection of metals in any hard-to-reach space within a structure.

Where to Use

• Prestressed tendons  
• Segmental concrete bridge tendons  
• Post-tensioned box-girder bridges  
• Tubular structures, pipes, and vessels 
• Parts, components, and completed assemblies during shipping and storage

Advantages

• Does not affect physical properties of concrete and grout (set time, strengths, etc.)  
• Does not contain phosphates, nitrites, or heavy metals  
• Provides up to 24 months of continuous protection  
• Protects inaccessible and recessed surfaces by the deposition of vapor-phase inhibitors onto metals  
• Requires little or no surface preparation  
• Protected surfaces do not have to be cleaned prior to concrete or grout placement  
• Prevents further corrosion of pre-coated and painted metal surfaces  
• Easy to apply by dusting, fogging, or sprinkling  
• Easy to remove by air gun or water