Zerust^® Zerion™ C-711 is a versatile new corrosion inhibitor specifically designed to protect soil side bottoms of Aboveground Storage Tanks (ASTs). The product can protect single bottom tanks with soil side liners or double bottom tanks. Its 3-way action provides a new dimension of effectiveness that is best in class in the market today.
Three forms of protection:

1. Fast acting Vapor Corrosion Inhibitors (VCIs) to protect weld joints, etc.
2. Phased release VCIs provide many years of protection
3. Soluble Corrosion Inhibitors (SCI) mitigate corrosion from moisture accumulation

The combination penetrates gaps and interstices under the tank bottom plates to provide comprehensive coverage.

New Tanks and Bottom Plate Replacements: After construction of the tank pad, Zerion C-711 is evenly applied at a rate of 3 kg per 10 m² to the tank bottom sand/soil base and mixed with a hand rake. For concrete pads, Zerion C-711 can be applied directly on top of the concrete. The construction of the steel bottom then proceeds as normal. Caulking is recommended between the tank edges and the concrete base to minimize water penetration.

Existing Tanks: The Zerion C-711 is dissolved in potable water (10% solution by weight) and the solution is pumped between the tank bottom plates and the containment liner/double bottom. Typical application is 35 liters of solution per 10 m² of surface area of tank bottom.

• Appearance: White crystalline powder
• _pH: 8-10 for 1% solution
• Odor: Slightly acidic
• Flash Point: Not applicable
• Flammability: Not applicable
• Sold in 50lb (25kg) bags

• Easy-to-use system that can be replenished while the tank is in operation.
• Can be combined with simple monitoring procedures to ensure effectiveness of the solution and peace-of-mind.
• Corrosion protection for voids and interstices that are impossible to protect with other methods.
• Protection for tank bottom plates and welds with little to no surface preparation.
• May be used in conjunction with cathodic protection or independently.
• VCIs offer non-permanent corrosion protection at the molecular level that is safe and eco-friendly.
• Vapor action ensures uniform distribution within the tank bottom.
• Service life of tank bottom can be increased significantly at minimal cost.

New Tanks and Bottom Plate Replacements:
After construction of the tank pad, Zerion C-711 is evenly applied at a rate of 3 kg per 10 m² to the tank bottom sand/soil base and mixed with a hand rake. For concrete pads, Zerion C-711 can be applied directly on top of the concrete. The construction of the steel bottom then proceeds as normal. Caulking is recommended between the tank edges and the concrete base to minimize water penetration.
Existing Tanks:
The Zerion C-711 is dissolved in potable water (10% solution by weight) and the solution is pumped between the tank bottom plates and the containment liner/double bottom. Typical application is 35 liters of solution per 10 m² of surface area of tank bottom.

Leak detection/telltale pipes, or bore holes drilled horizontally into the tank pad, can be used to inject the solution.

For a new tank, or bottom replacement, typical duration of protection is 5 - 10 years before inhibitor replenishment is required through injection of the liquid solution. For existing tanks with liquid Zerion C-711 injections, replenishment is recommended every 3 - 5 years. The replenishment can be tied into periodic monitoring and maintenance of the effectiveness of the solution.