How to Design a Rotomolded Cooler

As a rotational molder with 80 years of plastic manufacturing experience, Gregstrom routinely receives inquiries from cooler designers. They’re interested…

Corner Angle Limits in Rotational Molding

Are you designing a part for rotational molding? Then remember to consider corner angle limits. They directly affect part quality,…

Rotational Molding vs. Blow Molding: What’s Right for Your Plastic Part?

Manufacturers who need hollow plastic parts often compare rotational molding and blow molding. Both processes can produce durable, functional components;…

Flat Surfaces in Rotational Molding: What Designers Need to Know

Flat surfaces seem simple, but they can present design challenges in rotational molding. That’s because rotomolded parts are made inside…

Rotomolded Parts: Tips for Design Engineers

Rotational molding offers design engineers geometric freedom, low tooling costs, and the ability to produce large, stress‑free, hollow structures. Rotomolding,…

Made in USA Rotomolded Coolers

Gregstrom Corporation is a Made in USA manufacturer of rotomolded coolers that keep food and drinks cold for extended periods…

Rotomolded Cases: Superior Protection and Durability

Rotomolded cases are durable, protective containers for securing fragile or high-value items during transit or storage. Whether they’re used with…

Plastic Pallet Manufacturer: Made in USA

Are you looking for a plastic pallet manufacturer? Would you like a Made in USA manufacturing partner? Gregstrom Corporation of…

Santa’s Rotomolded Boat Supports Multimodal Transportation Strategy

North Pole – December 18, 2025 – Santa’s Workshop has confirmed reports that this year’s Christmas logistics will use a…

Who Makes Plastic Manifolds?

Plastic manifolds are rotomolded components used in fluid distribution systems. They distribute fluids such as air, water or industrial gases…