We don't just make plastic parts. We make products that help save lives, products that help keep people safe and products that help
shape our future.

A half-century commitment to produce innovative products.

Founded in 1953, PTA Plastics is an employee owned plastics injection molding solutions provider for complex industrial design products.

Engineering Support PTA performs full DFM on all projects awarded. Our trained engineers perform 3D mold filling analysis on every part prior to mold design.
Mold Design & build PTA performs all mold designs in 3D format and uses state-of-the-art CNC and EDM technologies with fully equipped in-house moldmaking.
Manufacturing PTA has 31 presses ranging from 30 ton to 1,375 ton. Our machines are equipped with robotics and a multitude of plastic resins are run at PTA.
Quality Standard with every project is a quality solution tailored to fit our customers needs, including a 3-piece FAIR, Custom Quality Plan and our standard process validation.










Our Services

Design and Engineering Assistance

Design for Manufacturability and mold-flow analysis

In-House Moldmaking

In both facilities -
Oxford, CT and Longmont, CO

Injection Molding

31 presses ranging from 30 ton to 1,375 ton

Value-Added Services

A wide array of post-molding options are readily available

Process Validation

Tailored to fit all needs and requirements

Specialty Molding Processes

Over-molding, insert-molding, structural foam/gas assist

Discover PTA Plastics

How does it work?

Here you can browse through our collection
of videos that feature our technological resources
and how we provide our complex industrial
designed products.

Browse Videos









  • DISTINGUISHED
    SOLUTIONS
    IN PLASTIC ENGINEERING
    Learn More


A few of our Customers

Partners we work with.

Latest Blog Posts

What Our Customers Say

What separates PTA from others is they offer complete project management, from design and tool management to final production. I give the complex stuff to PTA because I know they'll get it right.

PTA Customer Director of Engineering