Engineering Polyolefin Compounds.

Compounding Innovation that's driven by your challenges.

Our Solutions

We love solving problems. Our product development team is ready to collaborate with you to create new custom polypropylene and polyethylene solutions designed specifically for your applications.

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Our Products

When it comes to our products, think versatility. We modify polypropylene and polyethylene with a variety of property-enhancing reinforcements. Perfect for meeting specific material requirements.

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Build Your Own Product

We know every application or project is different. With Build Your Own Product, you'll be able to work closely with our team to help achieve your vision. Fill out the form today!

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Our Sustainability Commitment

Helping consumers live healthier, happier lives by making positive and even transformational contributions to products they use everyday is at the heart of our commitment to sustainability.

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Shape What's


Washington Penn offers a wide range of resources to help you get started. Start formulating today.

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Primary Industries Served


With locations across the globe, we're ready to collaborate on your compounding needs, wherever you are.

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Looking for your next move? Find a rewarding career and come innovate with us.

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Access our comprehensive library of resources to get started.

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