About MRP Solutions

Shared purpose inspires unexpected ideas.

MRP Solutions, a plastic cap manufacturer is a leading provider of high-quality, injection molded plastic closures, jars and  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.  MRP Solutions combines extensive packaging expertise with a consultative approach to reliably uncover customer needs. By understanding your business goals, we can tailor smarter, safer, and more flexible packaging solutions that reduce cost and increase speed to market, helping your businesses capitalize on opportunity.

 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. Together, we deliver packaging with purpose.

Our Story

Mold-Rite Plastics

Plattsburgh, NY:  Founded in 1976 with six full-time employees and five used injection-molding machines, Mold-Rite Plastics evolved into a full-scale, environmentally responsible manufacturing operation with plastic molding, lining and decorating capabilities. With the acquisitions of Weatherchem Corporation and Stull Technologies in 2012, MRP has a broadened footprint that further enhances the company's ability to lead the market as a trusted partner delivering responsive packaging solutions.


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

Stull Technologies

Since 1947, Stull Technologies has delivered unique and inventive packaging solutions. With products like the award winning Ultra Light® hinged liquid dispensing closure, along with trusted offerings including disc tops, twist caps, strap caps, open spout closures, the new flip lite and Flip-N-Squeeze® closures, 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:

Packaging with purpose.


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