Poly Seal Industries

Poly Seal Industries is a leading provider of molded and custom rubber goods with the ability to support projects from the design and engineering phases through final delivery to the customer.


Custom Molded Buna/Chloroprene Conveyor Belt Cleat, Rubber Bonded to Aluminum Extrusion

Custom Molded Buna/Chloroprene Conveyor Belt Cleat, Rubber Bonded to Aluminum Extrusion The project highlighted here involved the engineering, design, custom compounding of rubber, and bonding for a conveyor belt part used in the water and sewage treatment industry. The part was composed of buna and neoprene, bonded to extruded aluminum. This conveyor belt cleat is an example of Poly Seal’s ability to fabricate a custom rubber product that meets difficult requirements. The part was manufactured using a state-of-the-art 300 ton hydraulic compression press, and extruder, to produce a specially formulated rubber part that was bonded to aluminum inserts. It withstands exposure to water and sewage, while having high levels of tear, abrasion, and chemical resistance. The finished product featured dimensions of 28” by 7” by 7”, with a tightest tolerance of ± 0.010".

Quality and integrity was confirmed through bond strength and durometer testing.

To see how the most advanced machines in the industry can help with your next precision manufacturing need, see the table below or contact us.


Molded Buna/Chloroprene Conveyor Belt Cleat Project Highlights

Product Description
This part is attached to conveyor belts that are used in sewage and water treatment plants
Capabilities Applied/Processes
Custom Compounding of Rubber
Engineering and Design
Rubber Bonded to Extruded Aluminum
Equipment Used to Manufacture Part
Extruder, Sandblaster, 300 ton Hydraulic Compression Press
Overall Part Dimensions
28” x 7” x 7”
Tightest Tolerances
± 0.010"
Material Used
Buna, Neoprene, Extruded Aluminum, Chemical Bonding Agents
Additional Facts
The rubber is chemically bonded to the aluminum substrate after the aluminum has been surface treated and sandblasted
In process testing/inspection performed
Bond Strength Test
Durometer Test
Die B Tear
Compression Set
Industry for Use
Water and Sewage Treatment
Delivery/Turnaround Time
4 Weeks
Delivery Location
Berkeley, CA
Standards Met
Customer Specifications
Rubber Manufacturers Association
Product Name
Conveyor Belt Cleat
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