Bulk Material Polymer Lining Systems

Clogged Chute or Bin/Hopper Discharge?  

 Promote Efficient Material Flow With a Smooth Move Polymer Liner.

From bulk material analysis and lining system design, to fabrication and installation; we are with our clients every step of the way. Read further to learn more about our production boosting systems.

TIVAR Liner Hoppers

What is a Bulk Material Handling Liner?

A bulk material lining system is a series of TIVAR88® or other specialty high wear polymers that are chosen based on bin and environmental conditions and mechanically fastened to the steel or concrete substrate using specially designed hidden fastener systems.  These sheets are complimented by profiles that allow for the thermal expansion of the panels and still allow for smooth mass flow through the bulk material handling system. Bulk Material Handling Liners will extend the life of your equipment, prevent downtime, speed up material flow and ultimately save you money! Still want to know more? Continue reading or contact our experienced sales team today!

Why Invest in a Bulk Material Liner?

Bulk materials are difficult to handle, hence why there is an entire engineering field to promote the flow rate of bulk material handling. Flowing bulk materials/solids are abrasive, noisy, dusty and difficult to keep contained in the proper flow channel. We design bulk material handling liners to assist and prolong the life of the equipment across the many different industries. From screw conveyors to large coal and ore holding bins, we engineer and fabricate the liner to promote and maximize the throughput at your plant.  Steel is widely used to build the hoppers/bins and chutes of the bulk material handling equipment due to it’s structural integrity, but when it comes to the surface of steel is where a TIVAR88 liner will set itself apart.

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Steel vs Tivar 88

What many cannot see is that bulk material, especially the small particles (fines), have a natural attraction to ferrous and non-ferrous metals. This phenomenon occurs even to highly polished stainless steel or wear plate. Over time, with the deterioration of metals, this attraction is increased, especially in the lower velocity corner areas.  TIVAR 88 or 88-2 sheets don’t see this deterioration in the same way so materials will remain to flow the same way.  In addition to this TIVAR 88 sheets have a coefficient of friction less than a quarter of steel.  The following table is based on Dry steel for values.

Coefficient of Friction of TIVAR 88 vs Steel

Material (on Dry Steel)

Coefficient of Friction





TIVAR 88-2


How is this tested: To calculate the coefficient of friction, divide the downward force of the object being moved by the force it takes to move it across the surface. The surface, in this case, is steel. 
Before TIVAR Liner
After TIVAR Liner

Issues with Bulk Material Flow?

Flow issues can slow production to a standstill and result in dangerous working conditions, wasted material and cost overruns. In today’s competitive environment, losing time and money to erratic or no flow is frustrating and expensive if you need to replace or repair equipment due to premature wear.

Unlined bins tend to suffer from all sorts of issues that result in reduced flow and production issues.  The two main causes of erratic flow that arise when managing bulk materials are: rat-holing and bridging. 

Rat-holing is caused by material and the steel of the hopper absorbing moisture and sticking to each other.  This causes the material to stick on the side of the bin causing a large material buildup around the perimeter of the bin and reducing material flow (isolated flow) to slender channels in the middle of the bin.

Bridging is material sticking to itself and creating a bridge or arch-like structure over the opening of the bin. This is due to moisture and the irregularities on the surface of the bulk materials interlocking and building a solid bridge.  When this occurs, it reduces the flow to almost nothing. 

 Polymer Bulk Material Liners For Any Environment

With a wide range of materials designed to maximize flow rates in even the harshest environments, we have a liner for you! Read more or Call our team today to discuss how we can improve material flow in your specific application.


TIVAR 88 Roll

Fastening Options:

Services Provided:

  • Consultations and Recommendations
  • Engineering and Design
  • Fabrication
  • Installation

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