ALLEN® Thermoplastics is part of SEKISUI SPI.

As announced last September, ALLEN Extruders, LLC and KYDEX, LLC have come together to form SEKISUI SPI — creating a new standard of excellence for the thermoplastics industry to think, design and create. Our name is new, but our level of commitment to our customers is the same.

Starting May 15, 2015, our legacy site for will be
inactive and you will be redirected to our fully integrated
( As a Designer, Engineer, or Fabricator, you’ll find specialized sections created just for you. Visit our
new site today and discover the updated features, enhanced search
and specific content you need.

Explore our new site visit the legacy allen site