About MRP Solutions

More than Plastic Closures, Caps and Lids

MRP Solutions is a leading provider of high-quality, rigid-plastic packaging components used every day by millions of consumers around the globe. But we offer more than just plastic caps and lids – we deliver fast, flexible and reliable packaging solutions. We are the only plastic closure and jar manufacturer that provides the unique combination of innovative design solutions and quality products at industry-leading customer-experience levels. From fast-order shipping of a wide range of stock components to developing custom product solutions with our in-house innovation team, MRP is a trusted supplier. We are passionate about partnering with distributors and manufacturers who understand that plastic caps and lids are a small but important part of how people experience their brands.

Our Story

Mold-Rite Plastics

What started with six full-time employees and five used injection-molding machines has grown into a full-scale, environmentally responsible manufacturing operation with plastic molding, lining and decorating capabilities. With the acquisitions of Weatherchem Corporation and Stull Technologies, MRP Solutions  has a broadened footprint that further enhances our ability to deliver.


Founded in 1971, Weatherchem Corporation established itself in the packaging industry with its creative line of plastic dispensing closures for containers and bottles. Creators of the original Flapper® dispensing closure, Weatherchem offers one of the industry's most well-regarded lines of closure product. Other brands in the Weatherchem family include LiquiFlapper®, NutraFlapper®, NutraGen II®, FlapMate® and MegaFlap®.

Stull Technologies

Since 1947, Stull Technologies has been committed to unique and inventive packaging solutions for our customer’s products. With innovative products like the Ultra Light® hinged liquid dispensing closure, we have a solution for your personal care, household chemicals and pharmaceutical packaging.

MRP Solutions has the most complete collection of child resistant closures on the market, as well as a broad array of jars, continuous thread closures, dispensing closures and specialty caps. And, our in-house design and tooling capabilities allow us to quickly customize solutions. Since 1976, MRP has served a diverse range of markets including:

Innovative. Reliable. Responsive. It’s all part of our package. 

Our promise

MRP Solutions promises an unmatched experience in delivery performance, order flexibility and lead times. And, we deliver. It is our daily commitment to provide exceptional products and services that help our customers and distribution partners realize their value potential. We are dedicated to making you more competitive and more profitable.

To learn more about how plastic caps and lids can enhance your total package, view our products.