What's New

Which Is Really Better: Cross-linked or Linear Polyethylene Tanks?


While cross-linked polyethylene and linear polyethylene have similar names, there’s a big difference between the two. When you purchase your next chemical storage tank, it’s very important to understand the difference between these materials.

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Topics: Value Added



Updated Installation and Operation Guide Now Available


Poly Processing works diligently to produce each and every chemical storage tank built to spec, but if a tank is not installed correctly it could lead to damage, leaks, safety issues for personnel, and ultimately a shorter tank life. That’s why everyone should take chemical tank installation seriously.

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Topics: Installation and Service, Value Added



How Your Tank Supplier Meets ASTM D 1998 Standards

On the surface, polyethylene storage tanks might look pretty similar. It’s tough to tell a more robust tank that has been well designed and constructed from a cheap, inferior one. Over the years, we've found that many customers are unaware of the standard for polyethylene tank construction based upon resin properties and testing or they simply assume all tank manufacturers follow the ASTM D 1998 standard.

The ASTM D-1998 standard is a voluntary standard that differentiates the manufacturers that meet it vs. the ones that don't. However, as in any standard there is some subjectivity to how each manufacturer interprets the ASTM guidelines. Just meeting the standard isn't everything though; it's not an all inclusive list. The standard should be looked at as one in many items in a checklist when picking the proper tank and manufacturer for your application.

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Topics: Certifications and Standards



[Video] A Behind-the-Scenes Look at Poly Processing’s Quality Tests


How do you know by looking at a chemical storage tank how well it’s constructed? There’s a big difference between a well-designed, properly constructed tank and an inexpensive one that doesn’t meet structural requirements. But it takes more than the naked eye to spot critical flaws.

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Topics: Certifications and Standards



Sodium Hypochlorite Storage - Reviewing Best Practices


The well known and aggressive oxidizer, sodium hypochlorite, is used in numerous applications. Our end-use customers are often using “hypo” in the water treatment business to eliminate bacteria and viruses from water supplies.

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Topics: Chemicals



Crosslinked Polyethylene Pharmaceutical Chemical Storage Tanks Outperform Stainless Steel


The pharmaceutical industry has a history of using stainless steel storage tanks due to the belief that the resins in a polyethylene storage tank would allow leaching and bacterial growth with pharmaceutical products. But stainless steel tanks have drawbacks. Because they can contain chemical attack points, the tanks require expensive coatings and ongoing maintenance and inspection. Seams and welding spots are especially prone to compromise.

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Topics: Applications



Storage Tank Seismic Restraints - We Can Help

Note: Poly Processing's seismic clip names have changed from L designation to A designation. The clip thicknesses have changed as well. Please feel free to contact customer support for any clarification you might need. 

One natural event that could potentially lead to catastrophic risk, resulting in a complete failure of a chemical storage tank system, is an earthquake. Earthquakes can happen in areas not considered earthquake zones, such as the August, 2011 5.8 magnitude tremor that rocked Virginia. 

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Topics: Installation and Service, Fittings and Accessories



An Inside Look at Poly Processing Tank Shipping Procedure


Poly Processing Company manufactures high-density crosslinked polyethylene storage tanks for a wide variety of applications; but manufacturing is just one step in the overall process. A chemical storage tank is an investment, and it’s important to protect any investment. That’s why we take special care and precaution with your chemical storage tank, especially after it is rotationally molded and is ready to be shipped to your plant. Here’s a closer look at our process.

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Topics: Installation and Service



Safe Aluminum Sulfate Storage


Aluminum sulfate, also known as cake alum or papermaker’s alum, is a flocculant chemical, much like ferric.

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Topics: Chemicals



Storing Flocculation Chemicals for Water Treatment


Coagulation is one of the preliminary steps in cleaning water and when chemicals are used, a few design practices regarding the storage tank can bring safety, longevity and operational efficiency. Understanding how coagulants work in water treatment, what to do about the sludge that accumulates, and how to minimize risk will help you configure an effective and efficient coagulation tank system.

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Topics: Chemicals, Applications