Key Questions to Ask When Ordering GFS Tanks

10 Mar.,2025

 

Glass Fused To Steel Bolted Storage Tanks Manufacturer - CST

Glass Fused To Steel Bolted Storage Tanks  ' Never Need Painting

Glass-fused-to-steel (porcelain enamel) is a single source strong, integrated porcelain enamel and steel material fused together at over ° F, creating a hard inert, inorganic coating that NEVER needs painting.  CST's glass-fused-to-steel is the premium technology in the tank market.  The interior of all glass-fused-to-steel tanks feature VITRIUM' coating technology enhanced with titanium dioxide (Ti02) for the toughest glass available. 

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CST's VITRIUM coating is the world's leading glass-fused-to-steel process for bolted storage tanks and has been field proven for more than 69 years.  Along with VITRIUM coating, CST now offers EDGECOAT® II, the continuous innovative EDGECOAT technology and the ONLY process in the world that provides optimum glass encapsulation on all (4) sides of the sheet edges.  VITRIUM coating features and benefits include:

  • Tough Ti02 glass formulations provides longer life
  • White interior is easier to inspect than darker coatings
  • Factory certified holiday-free sheets
  • Designed for use in both cold and hot climates
  • Designed, fabricated, shipped and supported within the USA

EDGECOAT II is a result of CST's commitment to an ongoing product development and improvement program.  This continuous innovative EDGECOAT technology is the ONLY process in the world that provides optimum glass encapsulation on all (4) four sides of the sheet edges.  CST took the best EDGECOAT technology in the world and made it better with EDGECOAT II.

Following Porcelain Enameling Institute guidelines (PEI-101), EDGECOAT II sheets are mechanically rounded to specific radii that provides maximum glass adhesion to steel.  The combination delivers the maximum corrosion resistance of VITRIUM glass coating with the greatest protection on every sheet.

  • Highest quality finish
  • Glass is applied on all (4) sides of the sheet offering the greatest protection
  • No sharp edges on tank sheets, eliminating safety hazards
  • Edges are engineered to ensure optimum radii for each individual gauge of steel providing the maximum and consistent glass edge
  • 5 mils of glass encapsulation on every sheet edge

Download Edgecoat II Technical Data Sheet

VITRIUM is our proprietary titanium Dioxide (TiO2) glassing process applied in a 3-coat, 1-fire (3c1f) process procedure. VITRIUM coating is also produced in a 3-coat, 2-fire (3c2f) process primarily when special colors are requested or thicker layers of glass are required.

The CST proprietary VITRIUM glass-fused-to-steel process provides:

  • Longer tank life
  • Base coat of glass frit containing nickel oxide ensures consistent quality
  • Maximum coating effectiveness without requiring excess coating thickness in order to provide the needed durability at competitive pricing
  • Unique process technologies and voltage testing on all interior side wall sheets provide a factory certified 100% holiday free surface.

The combination of glass quality and glass thickness provide the assurance that over 69 years of experience and over 100,000 structures successfully installed around the world will continue with each and every new structure installed.

Titanium Dioxide (TiO2)

In CST, formerly Engineered Storage Products, launched an R&D project to develop a process for the direct application of our proprietary Titanium Dioxide (TiO2) Glass.  The result is a totally new, patented '3-coat, 1-fire' (3c1f) process for applying TiO2 Glass.

TiO2 is a very common ingredient used by many coating manufacturers for various reasons:

    • It is considered inert and at high level in porcelain enamel, gives unique properties.
    • In the case of the interior VITRIUM coating, with its higher percentage of TiO2 in the final white layer, allows CST to provide an exceptional enamel surface.
    • During firing, the white layer's higher viscosity has the effect of controlling bubble structure in addition to making the top TiO2 rich layer harder, more chemical resistant and the bubble structure finer.  This high TiO2 content is unique to AQUASTORE® and provides exceptional properties to fit colder conditions common to the North American market.

As a result of using higher amounts of TiO2 in the final white layer, a unique visual marker on the glass known as 'VITRIUM threading' becomes apparent.  This is caused by thicker areas of the top white layer interspersed with thinner areas allowing the underlying bluecoat to show through opaquely.  This immediately identifies the coating as VITRIUM.

Manufacturing Excellence

CST's DeKalb facility is ISO : quality system certified.  Engineers design tanks for a wide range of standards including AWWA D103 Standard for Bolted Steel Water Storage Tanks, AISC, FM codes and NFPA Standard 22.  Additionally, glass coatings meet ANSI/NSF Standard 61 requirements for indirect additives, making AQUASTORE®, HARVESTORE® and SLURRYSTORE® tanks ideal for liquid, feed, manure storage and digesters processes.  Most importantly, extreme pride is taken in craftsmanship for a tank that endures the test of time.

From the automated manufacturing processes through the stage-by-stage inspection and even down to careful inspection of the glass. Our glass-fused-to-steel quality is the best in the industry.  The best proof of the precision of CST's manufacturing procedures can be seen in the thousands of tank installations around the world.

Glass-Fused-To-Steel Process

Glass-fused-to-steel is the premium technology in the tank market.  The factory-applied silica glass coating on AQUASTORE, HARVESTORE, SLURRYSTORE and NUTRISTORE tanks forms a hard, inert barrier for both the interior and exterior tank surfaces to guard against weather and corrosion.  Glass-fused-to-steel is impermeable to liquids and vapors, controls undercutting caused by corrosion and offers excellent impact and abrasion resistance.  The color won't fade or chalk and most graffiti can easily be removed.  It NEVER needs painting!

    • Fabricated sheets are grit blasted to a uniform, near-white surface
    • Proprietary formulations of borosilicate, minerals, water and clays are blended into a sprayable slurry called 'slip'
    • After inspection, the slurry is fused to the steel sheets at temperatures above 1,500° F to produce the distinctive glossy Aquastore finish
    • The molten glass reacts with the profiled steel surface to form an inert, inorganic chemical and mechanical bond

VITRIUM Coating Glass Finish

New process technology has resulted in the development of CST's newest glass innovation ' VITRIUM coating.  This coating combines the outstanding chemical and physical resistant properties of Titanium Dioxide (TiO2) saturated glass with a highly engineered ultra-fine glass structure surface to create a high-performance glass-fused-to-steel technology.  VITRIUM coating features and benefits include:

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  • Tough TiO2 glass formulations provide longer life
  • Electrostatic base coat application ensures consistent quality
  • Maximum coating effectiveness without requiring increased coating thickness
  • Unique process technologies provide factory certified 'holiday free' sheets
  • Process efficiencies lead to competitive pricing
  • Ideal for both cold and hot climates

Color Options

AQUASTORE glass coatings are available in standard cobalt blue or four other premium exterior colors.  Forest green, sky blue, desert tan or white premium colors are available at an additional cost. Inquire for custom colors.

History of Glass-Fused-To-Steel

CST (formerly A.O. Smith) first discovered the methodology of controlling corrosion by fusing glass to steel in the s.  The technology was initially used in the brewing and hot water heater industries.  While other uses for glass-fused-to-steel were explored, the first glass-fused-to-steel tank went into service in as a HARVESTORE silo.  This agricultural use to store feed while retaining quality has been widely used for almost 69 years.

In the s, our Municipal and Industrial Division was formed and we subsequently launched AQUASTORE tanks for water, wastewater and other industrial liquid uses.  Since , more than 100,000 AQUASTORE, HARVESTORE, SLURRYSTORE and NUSTRISTORE glass-fused-to-steel tanks have been installed in over 70 countries around the world.

Answering your questions about supply chain challenges - GFS

The weekend's near, and your restaurant's bottomless bucket special on breaded, fried shrimp is in peril. A temporary product shortage means no delivery until next week'if labor, manufacturing and transportation function smoothly. The supply chain challenge is real.

Product availability is limited by weak links at every level. It happens before vendor production with lack of availability or lead times on ingredients. It happens in packaging and transportation before products even get to vendors. It snowballs from there to vendor production to warehousing to trucking. Labor shortages throughout the industry are affecting everyone in some way.

Add in the pandemic-fueled desire for certain items, and the problem compounds. Short supply. High demand. Increased prices. It's a recipe for headaches.

Everyone is experiencing pain, most visibly foodservice operators struggling to maintain profitability, menu consistency and guest satisfaction. To address restaurant operators' questions, two Gordon Food Service experts'Todd Baker, Executive Vice President, North America Merchandising, and Brad Reynolds, Senior Director, North America Procurement'offered explanations:

Why is the supply chain broken?

First of all, foodservice customers should know Gordon Food Service and all distributors and manufacturers are fighting the same supply chain battles. It plays out differently in different places, but our situations are all similar.

At the apex of the problem is labor. It's a problem in both the U.S. and Canada. Suppliers are in a less-efficient model than before the pandemic. Without labor, they aren't able to get as much throughput. Some suppliers are unable to obtain equipment and make process improvements right now, so they're trying to throw more labor at their manufacturing to get the most out of what they have. There's also labor shortages in shipping of raw materials, warehouse systems, and delivery of finished products.  

Product demand is another factor. With labor troubles of their own, restaurants have changed their menus. Suddenly, there's an increased call for value-added products, like breaded, deep-fried appetizers. When everyone needs them at once, it can be a challenge even for a fully staffed and equipped vendor. 

How else is the pandemic playing into shortages?

Because of safety concerns, many manufacturers have implemented social distancing or limited shift sizes on their production floor. Also, every now and then a covid outbreak will slow or stop production and output for a period of time. It puts a challenge in the supply chain for a couple of weeks, and it's very unpredictable.

The return of school and healthcare foodservice on a larger scale than we've experienced over the past 18 months is adding more demands. Many schools have switched from tray service to packaged containers, and healthcare is using more to-go products, so that has taken a bite out of restaurant takeout materials. 

Which products are affected?

Depending on the week, different items are a challenge. You can see that on a trip to the grocery store. For our restaurant customers, three areas are hurting most:

  • Grab-and-go items. Everything from grab-and-go beverages like Gatorade to individually-wrapped or packaged items. Demand for ketchup packs is unprecedented compared to , and we're reaching out to a lot of suppliers to provide them.
  • Takeout packaging. Orders for plastic cutlery, cutlery kits, drink cups and foam containers are up exponentially. Everyone is calling for more to-go containers.
  • Value-added products. Things like chicken tenders or breaded and deep-fried appetizers. For manufacturers, those are very labor-intensive.

What can restaurants do?

The best solution for finding alternative products is to work closely with your Sales Representative. Our category team is working daily on product availability and substitutions. For some items, it's a demand issue, for other items it's a manufacturing issue, for some it's a transportation issue, so it varies from area to area. 

We're really trying to equip our team with information. The most important thing, from end to end, is the thread of communication. We count on our customers to communicate their needs and be somewhat flexible through all the chaos. Is there a substitute product that will work? You may not want to use an alternate product, but if you can for 60 days, that kind of flexibility will help everyone get through this together.

When will things get better?

We may be at least six months out from seeing decent improvements. There are some lights at the end of the tunnel. Some of our suppliers have been working to add lines and reach capacity. 

The company is the world’s best Epoxy coated tanks supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.