Choosing the right type of spill containment: Polyethylene or Steel?

Ensuring safe liquid storage in your facility begins with having the right containment products in place. With over 25 years of experience, New Pig can help you make the best choice when selecting spill containment solutions to store liquids safely and prevent spillages. It’s your choice based on what fits your application, but with a little advice from the leak and spill experts at New Pig, you can be sure to get it right.

New Pig provides secondary containment solutions in Polyethylene and Steel versions. The version you choose will depend on the type of liquids you are planning to store and the level of chemical resistance needed, which is often the main factor to consider when choosing between Poly and Steel containment solutions.

Polyethylene Spill Containment

Polyethylene spill containment solutions are chemically resistant so they are an effective solution when you need to store corrosive or reactive chemicals, and non-flammable liquids. They are ideal for storing chemicals in areas of high humidity as poly won’t rust or corrode when moisture forms. Poly is the best option for areas where temperature extremes are not a factor, as it is likely to soften or melt in high temperature areas. Additionally, if cost is a primary concern when choosing spill containment solutions, poly can be more cost effective.  It is also more light weight than Steel, making transport easier.

Steel Spill Containment

Steel containment provides the best storage solution when you need to store solvents, fuels and other flammable liquids, plus chemicals that would degrade polyethylene upon contact.  Steel units can be safely grounded to remove any potential for static discharge, removing a possible source of ignition when storing highly flammable liquids. When storing liquids in areas where temperature extremes are involved steel is the best choice as it is less prone to cracking in cold conditions or softening in high temperature atmospheres. However, Steel may not be the best option when liquids are stored in high humidity environments, as rust and corrosion may occur.

Safe liquid storage will help to prevent dangerous liquid spills from reaching your floors and keep your employees safe. Considering the differences between Poly and Steel spill containment will ensure you make the best choice for your facility.

Has our advice helped you choose the right type of containment solution? Let us know by commenting on our blog or posting on our wall at We would love to hear from you!


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