What Are Drop-In Liners?

Drop-in liners are very similar to our Plating Tank Liners, but used in applications not related to surface finishing. We shop fabricate ourselves all of our drop-in liners we provide and install for our clients. From basic chemical holding tanks, to massive potable water tanks, we make liners for all types of containment application that are a simple drop-in liner.

If you have a project needing a drop-in liner, feel free to contact FLSI today to further discuss your projects scope and needs. We’ve had many drop-in tank liners in service for many decades now throughout the United States from home owners to Major Municipalities.

Where Are Drop-In Liners Used?

  • Agricultural
  • Aquaculture
  • Chemical Storage
  • Electroplating Plating Tanks
  • Electroless Plating Tanks
  • Energy
  • Hatcheries
  • Industrial
  • Infrastructure
  • Oil & Gas
  • Plating Tanks
  • Reservoirs
  • Surface Finishing
  • Wastewater
  • Water Management

Drop-In Liner Benefits


Superior Chemical Resistance


Great Flexibility


Easily Repaired


Lessens Downtime


Easy To Install


Utilizes Existing Structure


Non-Stick


Easily Fabricated

Drop-In Liner Properties

A lip/flange is the upper part of the tank on the top, outside portion that typically all tanks have.

Another portion on the outside of the tank, that turns downward past the lip. A turn-down is typically an anchoring method using liner clips, c-clamps, and or bolts.

Added or really doubled-up material near the air and liquid interaction zone. Protective skirts offer longer life in applications where temperatures and violent reactions occur. Skirts typically are  made of the same tank liner material, however in applications with extreme conditions, other more exotic plastics can be utilized such as PVDF, PFA, and TEFLON.

Made from Stainless Steel, our grommets are also manufactured in America. Grommets are used for securing the drop-in liner to the support structure it is made for, with polypropylene rope ran through them to cinch the drop-in liner.

Compression strips are another form of securing the drop-in liner to the support structure. They are typically used when the tank has a flange or studs to attach to. The liner is hole-punched when fully installed and the compression strip is placed over and secured with a nut, this is done for the entire tanks upper perimeter to secure the drop-in liner.

Double bottoms are utilized when the customer has common occurrences of high heat at the bottom of the tank, or more commonly, something falls out. Double bottoms are utilized to absorb the initial impact the material may face.

Lifting tabs are added loops to the drop-in liner for ease of install when a spreader bar is utilized, or even to help just support the liner during installation.

V-Bottom or even chambered tank liners are the irregularly configured tanks with multiple “units” or “zones” but all interconnected. While uncommon, it is an occurrence for FLSI and we would be more than happy to assess the scope of your project.

Drop-In Liner Gallery

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