Your Needs – Our Drive.
SEKISUI SPI is setting a new standard of excellence in thermoplastics.
Designed With You In Mind
Innovation and collaboration is important for your success, so it’s our top priority.
Sekisui SPI.  Bring Imagination To Life In Our Labs. designLab FSTLab
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Designers Engineers Fabricators

Welcome To SEKISUI SPI

The New Name For Excellence In Thermoplastics.

SEKISUI SPI represents an ability to think, design and create in a highly complex and demanding industry. By bringing innovators in thermoplastics – KYDEX, LLC and ALLEN EXTRUDERS – together we are able to understand the needs of our customers better and are positioned to deliver to them the best solution for their specific needs.  Learn More

Better Solutions for All

Spotlight Video
Introducing SEKISUI SPI: By bringing KYDEX, LLC and ALLEN EXTRUDERS together as part of SEKISUI SPI, we are setting a new standard of excellence for the plastics industry to think, design and create.

Recent News

SEKISUI SPI opens third manufacturing facility

SEKISUI SPI opens third manufacturing facility

SEKISUI Polymer Innovations, LLC hosted the official opening ceremony for their third manufacturing facility on Thursday, August 18th.  Read More

SEKISUI SPI Wins Coveted Crystal Cabin Award

SEKISUI SPI Wins Coveted Crystal Cabin Award

Infused Imaging™ technology won a 2016 Crystal Cabin Award in Material and Components category  Read More

Science for Silence: The Quest for a Quiet Cabin

Science for Silence: The Quest for a Quiet Cabin

APEX provides insight to material choice for noise control in the cabin  Read More