About ARM

The Association of Rotational Molders (ARM) is the global network for companies working in rotational molding, with members in 58 countries including molders, suppliers, designers, and educators.

We’re more than a trade association—we help rotomolders train their teams, improve their process, and connect with the right people.

What ARM Delivers

Hands-on training that works

• The ARM Training Academy includes certificates in Operator Training, Health & Safety (English and Spanish), and Wall Thickness Control—with an XLPE series launching in May 2025. These self-paced video courses help you reduce scrap, build confidence, and raise the standard of your operation. Members consistently call it one of the most impactful tools they use.

A focus on process improvement

• From our classic training video library to on-demand webinars and moderated troubleshooting calls, ARM helps you sharpen your skills and solve real-world problems with practical insight from peers and industry experts.

Stronger connections, better business

• ARM brings molders, suppliers, and educators together through live events, online forums, and committees focused on the industry’s top priorities. Whether it’s a conversation at our Annual Meeting or a phone call with a fellow molder, these connections often lead to breakthrough ideas and lasting value.

Promotion of the process

• We invest in educational materials, trade show presence, and outreach to help the world better understand the value and versatility of rotational molding.

Want to see everything ARM membership includes?
👉 Explore all ARM Membership Benefits