Corrosion Resistance

Who has proven performance for critical reliability?

We do.

With worldwide resources, including dedicated Ashland corrosion teams across the globe, we continue to provide innovative corrosion-resistant solutions and application guidance for your chemical environments.

When it comes to corrosion-resistant fiber reinforced plastic (FRP) tanks, pipes, ducting, pultruded profiles, and custom components, Ashland’s Derakane™ resins have defined efficacy, usability and integrity of FRP materials designed for the toughest environments.  Derakane™ resins are often used for chemical containment & transport in a variety of applications including chemical processing, air pollution control, mineral processing, pulp & paper and wastewater treatment.

Derakane epoxy vinyl ester resins deliver exceptional durability, superior heat resistance, low maintenance and high performance.  By leveraging our long history and proven performance, Ashland can determine the right processing and performance characteristics for nearly any corrosion resistant application.

 

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  • Air Pollution Control

    Breathe easy

    Regulatory agencies continually update standards, raising the bar ever higher for air pollution control. This creates a challenging situation for plant managers and owners to install and maintain sophisticated scrubbing equipment for flue gases emitted by energy generating boiler systems.  These emissions create a highly corrosive environment for both stainless steel and nickel alloys that are often used in air pollution control processes.

    Derakane™ and Hetron™ fiber-reinforced plastic (FRP) composites made with epoxy vinyl ester resins have become the preferred material of construction in many facets of air pollution control systems.  The combination of low maintenance and durability extend service life in corrosion prone environments allows you to breathe easy.

    Ashland Derakane™ and Hetron™ epoxy vinyl ester resins are commonly found in:

    • Coal-fired power plants, where their superior abrasion and corrosion resistance, protect scrubbers, piping and ducting
    • Highly corrosive environments with hot, wet, acidic gases
    • Water processing tanks and piping with extremely hot processing water
    • Cooling towers and pultruded structural profiles and fan shrouds

    Contact derakane@ashland.com for a resin recommendation.

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  • Chemical Processing

    The industry standard

    Hetron™ and Derakane™ vinyl ester resins were first invented by leading chemical companies searching for corrosion resistant materials for their aggressive manufacturing processes.  Hetron™ chlorendic polyester resins can replace the high nickel alloys often used in the piping and headers found in chlor alkali production units. Derakane™ epoxy vinyl ester resins displace metal alloys in an array of chemical processing plants including those that manufacture chlorine and caustic. 

    FRP made with Ashland Derakane resins not only outperforms most alloys, but offers significant cost savings as well.   Even in harsh environments that have traditionally used Hastelloy or titanium, FRP resins are a more economical choice. The engineering team at Ashland conducted research to determine the relative cost of a variety of common storage vessels and the results showed that FRP is often significantly less expensive than traditional materials.

    Chemical processing facilities around the world are replacing corrosion prone and high maintenance materials such as carbon steel, stainless steel and masonry with high performance, low maintenance and long lasting FRP materials.

    Utilizing Ashland composite materials to reduce corrosion help increase the lifecycle of equipment, thereby reducing maintenance and replacement costs. We strongly believe in this technology and even use it in our own facilities around the globe.

    Contact derakane@ashland.com for a resin recommendation.

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  • Mineral Processing

    Mining for solutions

    With the ability to withstand extremely high temperatures (90°C) as well as the harsh acids and acid chlorides used in mineral extraction, fiber-reinforced plastic (FRP) materials are rapidly replacing conventional materials such as alloys and concrete.

    The resins used in FRP materials protect tanks, scrubbers, pipes and more to extend the service life of your equipment and keep your hydromet process moving. 

    Cost-effective Derakane™ epoxy vinyl esters offer unsurpassed durability for mineral extraction equipment including:

    • electrowinning cells
    • storage and processing vessels
    • acid & abrasion resistant piping
    • ducting and scrubbers
    • acid plants

    Contact derakane@ashland.com for a resin recommendation.

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  • Pulp and Paper

    Proven solutions for highly aggressive environments

    Processing wood to paper requires the use of highly corrosive chemicals such as acids, alkalies, bleaches and salt. Throughout the mill, this requires specially designed and expensive processing equipment that can withstand a variety of harsh chemical environments. 

    In pulp mills throughout the world, fiber-reinforced plastic (FRP) equipment fabricated from Derakane™ epoxy vinyl ester resins have proven to be an exceptionally cost-effective, corrosion-resistant alternative for process fluid environments where conventional metals and coatings quickly fail. Combined with fiberglass reinforcement, Derakane epoxy vinyl ester resins can be fabricated into corrosion-resistant lightweight piping, ductwork, tanks, hoods, scrubbers, and stacks –- for far less than the cost of stainless steel several times lower cost than exotic alloys.

    Superior Chemical Resistance

    Derakane™ resins can resist a variety of corrosive chemicals encountered in a pulp and paper mill, at both ambient and elevated temperatures. Unlike metals, Derakane™ resins are unaffected by chloride stress or crevice corrosion and are highly resistant to pH extremes. With FRP equipment, there is no need to worry about long-term corrosive effects of continued closing of the recovery loop or about wide variations in pH levels during the bleaching process.

    Contact derakane@ashland.com for a resin recommendation.

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  • Water and Wastewater

    Proven defense

    Fiber-reinforced plastic (FRP) made with Ashland Derakane™ and Hetron™ epoxy vinyl ester resins is heavily used in water and wastewater service. It is particularly well-suited to seawater piping in cooling water systems and desalination plants. Design engineers rely heavily on these resins for the fabrication of sodium hypochlorite (bleach) storage tanks and piping systems.

    Scrubbers, Ducting, Stakes and Fume Handling Equipment
    Derakane™ resins offer a variety of benefits making them ideal for all types of corrosive fume handling equipment.  They are tough when it comes to providing thermal insulation and electrical insulation along with abrasion resistance and flexibility for use in a wide variety of environments. Derakane stands up to corrosive process streams, scrubbing chemical fluids and chemical by-products of scrubbing processes and cleaning solutions.

    Tanks
    Due to their resistance to corrosion, Derakane™ resins provide an economical solution by eliminating the need for linings in both the mixing and neutralization storage tanks and processing vessels.

    FRP tanks using Derakane resins provide:

    • corrosion resistance in virtually all chemically intensive environments
    • cost efficient maintenance
    • easy installation (lightweight)
    • low thermal conductivity properties - little to no insulation necessary
    • no electrolyte attack (cathodic protection not required.)

    Highly corrosive sodium hypochlorite solutions create a unique challenge for water treatment facilities.  FRP made with Derakane resin is rapidly replacing costly and hard-to-find titanium and cost effective but low-performing polyethene in bulk storage tanks and piping in water processing plants.

    Pipe
    Ideal for use in both above and below ground piping, lightweight Derakane™ resins offer both performance and cost effectiveness.  With lighter weight Derakane pipes, lower cost pipe hangers and bridges can be used.

    Benefits of composite pipes made with Derakane resins include:

    • corrosion resistance to a wide range of chemicals
    • abrasion resistance
    • lightweight, lower cost installation
    • assembly without arc welding
    • low thermal conductivity

    Gratings, Ladders & Railings
    With multiple benefits, composites manufactured with Derakane™ are an ideal replacement for more maintenance-intensive metal structures. The need to paint, is eliminated since the color is molded in during the fabrication process, thereby saving time and money.  In addition to their cost effectiveness, Derakane resins provide corrosion resistance, offer electrical insulation properties and have high strength-to-weight ratios.  Pultrusion fabrication techniques provide maximum strength properties at economical levels.

    Protective Linings and Floorings
    Tank life can be extended, saving both time and money, when Derakane resins are used to formulate corrosion resistant tank coatings and linings.  Derakane resins can be used on the exterior & interior of both new and existing tanks and provide:

    • extended service life over metal equipment
    • the advantages of nonolithic flooring versus concrete
    • lower maintenance costs
    • containment of spills

    Contact derakane@ashland.com for a resin recommendation.

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