INJECTION MOLDING | PLASTIC TUBING | PLASTIC SHEET I PLASTIC PROFILES
CUSTOM PLASTIC EXTRUSION TO INJECTION MOLDING AND THICK-GAUGE SHEET - SEILER PLASTICS IS YOUR TRUSTED U.S. PARTNER FOR HIGH-PERFORMANCE PLASTIC SOLUTIONS.
Located In ST. LOUIS, MISSOURI
Expert Manufacturing Service
Trusted by Industry Leaders for Over 50 Years!
Seiler Plastics is a full-service plastic manufacturer specializing in custom plastic extrusion, injection molding, and plastic sheet production. We will help turn your product ideas into scalable, manufacturable solutions.
Custom Plastic Extrusion Solutions
With a wide variety of materials and colors, we produce custom extruded plastic profiles, extruded plastic tubing, and extruded plastic sheet to meet the needs of our customers.
Our Blog
WHAT ARE THE ADVANTAGES OF POLYETHYLENE PLASTIC TUBING?
FROM PELLETS TO PIPING: HOW THE EXTRUSION PROCESS WORKS
WHAT IS PLASTIC THERMOFORMING?
THE WHAT, HOW, AND WHY OF RECYCLING POLYETHYLENE
