Granger Plastics Company

09/23/2026

Not all polyethylene is created equal — especially when it comes to rotational molding.

LLDPE vs. HDPE. Melt index. UV stability. Pigments. Reprocessed material. Molded features. Long-term outdoor performance.

Choosing the right resin can have a huge impact on how a rotationally molded product performs, processes and holds up over time.

We put together a detailed guide covering some of the biggest factors that go into polyethylene selection for rotational molding — including the kind of real-world lessons that only come from actually making parts.

If you design, source or manufacture plastic products, this one is worth a look.

👉 https://www.rotationalmolding.com/rotational-molding-polyethylene/

09/22/2026

32 years isn’t something you stumble into.

It comes from solving difficult problems. Designing better parts. Building better tooling. Learning from decades of production experience — and continuing to invest in what comes next.

Since 1994, The Granger Plastics Company has helped turn ideas, engineering challenges and demanding applications into rotationally molded products built for the real world.

We’re proud of 32 years in business.

But what excites us more is the next project.

If your company has a product that’s too large, too complex, too corrosion-prone, too difficult to manufacture — or simply needs a better way to be made — we’d like to hear about it.

Read the story behind 32 years of rotational molding innovation:

https://wkow.marketminute.com/article/marketersmedia-2026-9-22-granger-plastics-company-celebrates-32-years-of-rotational-molding-innovation

Then bring us the problem nobody else wants.

Ohio manufacturer marks more than three decades of engineering, manufacturing and custom rotational molding while continuing to invest in the industry's future.

08/25/2026

How much does rotational molding really cost?

The answer depends on more than just the price of plastic. Tooling, part size, geometry, material selection, production volume, finishing requirements, and secondary operations can all affect the final cost of a rotationally molded product.

We put together a practical guide explaining the major factors that influence rotational molding costs—and what companies should consider when evaluating a new project.

👉 Read the full article:

Understanding the true cost of rotational molding requires more than simply multiplying resin cost by a factor. Learn how tooling, cycle time, labor, machine utilization, part complexity, secondary operations, volume and other manufacturing requirements influence the real cost of a rotomolded produc...

08/17/2026

Pretty cool to see the launch of RotationalMolding.com picked up by USA Today.

We built the site to become a growing resource for companies, engineers, designers and anyone trying to better understand rotational molding — from design and tooling to process considerations, applications, costing and real-world manufacturing.

We’re just getting started, and there’s a lot more coming.

https://www.usatoday.com/press-release/story/39338/granger-plastics-opens-more-than-three-decades-of-rotational-molding-expertise-to-the-industry/

RotationalMolding.com gives engineers, OEMs, manufacturers and product designers access to practical knowledge shaped

08/13/2026

National coverage continues for RotationalMolding.com.

We’re proud to see AP News helping share the story of Granger Plastics opening more than three decades of rotational molding experience, practical manufacturing knowledge and engineering insight to the industry.

RotationalMolding.com was created to be more than a company website. It is being built as an expanding resource for engineers, manufacturers, product developers and anyone looking to better understand rotational molding, product design and real-world manufacturing applications.

It’s exciting to see the launch gaining national visibility.

Read the AP News coverage here:

https://bit.ly/4wrkLqI

RotationalMolding.com gives engineers, OEMs, manufacturers and product designers access to practical knowledge shaped by thousands of custom projects since 1994.

08/06/2026

We are proud to announce the official launch of RotationalMolding.com!

Built from more than three decades of real manufacturing experience, the new website is designed to help engineers, manufacturers, OEMs, product designers, students and entrepreneurs better understand rotational molding and the opportunities it creates.

Since Granger Plastics was founded in 1994, our team has produced thousands of different custom rotomolded products serving an incredibly wide range of industries. RotationalMolding.com gives us a new way to share what we have learned through educational articles, process information, product applications, design guidance and technical resources.

Read the official press release:
https://www.rotationalmolding.com/granger-plastics-opens-more-than-three-decades-of-rotational-molding-expertise-to-the-industry/

Visit the new website: www.rotationalmolding.com

We are excited to share this milestone—and even more excited about what comes next.

07/22/2026

Be Safe Out There!! With Tropical Storm Bertha making landfall, there's a threat of severe weather in different parts of the country!

Stay Safe!!!

05/29/2026

Michigan Safe Room Program Offers Tornado and Storm Shelter Savings for Families!

Michigan usually sees 13 to 16 tornadoes annually, but 2026 has already exceeded that total as Tornado Alley expands farther into the Midwest.

03/12/2026

Seems to be that time of the year again. In-ground Safety Shelter's are in high demand. Learn more about America's leading Underground Tornado Shelter innovation at www.grangeriss.com

02/27/2026

Are seawalls really protecting our beaches or making things worse? Discover the surprising truth and learn how Sandsaver is revolutionizing beach preservation! 🌊 Don't miss out — visit Sandsaver.com for innovative solutions!