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

Welcome To SEKISUI SPI

KYDEX® Thermoplastics 30th Anniversary

Kydex Thermoplastics, 30 years, 1987 to 2017.August 29, 2017 marks the 30th Anniversary of our ownership of KYDEX® Thermoplastics. We could not have reached this milestone without our partners. You are essential to our success, and we look forward to many more years of collaboration as we continue to push the limits of what’s possible, together. View our timeline of innovation and learn more about our vision for the future.  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 on the Road, Fall 2017

SEKISUI SPI on the Road, Fall 2017

Each year, SEKISUI SPI participates in exhibitions and conferences across the globe. Check out where we'll be this fall and if you're attending, please visit us.  Read More

Profile extrusion parts for mass transit

Profile extrusion parts for mass transit

SEKISUI SPI and Plastifab, a Montreal profile extruder, partner to bring KYDEX® sheet profile extrusion parts to the mass transit interiors market.  Read More

Plastivan™ Promotes Workforce Development

Plastivan™ Promotes Workforce Development

In February 2017, SEKISUI SPI sponsored and participated in a week-long PlastiVan™ educational event for elementary and high school students to promote workforce development for the plastics industry.  Read More