Storage Tank Roof Protection

The Problem

Storage tanks containing sulfur-rich oils face aggressive internal corrosion, especially in the vapor space. This leads to:

Severe damage to internal surfaces and roof support structures.
Dangerous operating conditions due to pitting and crevice corrosion that create holes in tank tops.
Failure of internal coatings to protect hidden areas between roofs and support structures.
Costly operational downtime and frequent roof replacements, resulting in capital loss and safety risks.

The Solution

ZERUST^® ReCAST-R^™ offers an advanced solution to combat internal corrosion in aggressive operational environments. Roof-mounted dispensers release VCIs into the vapor space, creating a protective barrier that shields metal surfaces. Proven to handle diverse conditions, including product variations, temperature fluctuations, and tank designs, it integrates seamlessly with existing systems like scrubbers and nitrogen blankets.

How it Works:

VCIs are automatically dispersed into the vapor space
A protective barrier isolates metal surfaces from corrosive vapors
Effective across a wide range of tank designs, product types, and operating conditions
Compatible with nitrogen blankets, scrubbers, and vent systems

Product APPLICATIONS

ZERUST^® ReCAST-R^™ protects:
All metallic surfaces exposed to the vapor space
Sidewall sections above the product level and roof support structures
Both new and existing tanks - even if corrosion is already present
Operational tanks - without contaminating the stored product

Solution Effectiveness

Operating Environment Inside the ASTs

Tank Roof Operating Environment Inside ASTs Table

ReCAST-R Benefits

Protects vapor-exposed surfaces, including sidewalls and supports.
Stops ongoing corrosion in affected tanks.
Prevents contamination of stored crude oil in operational tanks.
Extends tank service life while reducing maintenance costs.
Reduces the rate of corrosion by 4 to 5 times.
Increases roof life expectancy from 5-7 years to over 25 years.

Duration of Protection

ZERUST^® ReCAST-R^™ significantly slows the corrosion rate - by up to 4 to 5 times compared to untreated conditions.
This extends typical tank roof life from 5-7 years to 25 years or more, offering long-term reliability and reduced replacement needs.

Product Properties

Dispenser type: Steel cylinder
Inhibitor form: VCI liquid
Deployment: Installed on tank roof

AVAILABILITY

Contact a ZERUST^® representative for ordering information.

Download Brochure