StockCapSinclair & Rush Companies

With over 70 years of experience, Sinclair & Rush has grown to become the worldwide leader in product protection solutions. We attribute this success to our family of companies all representing the common ideal of supplying high-quality protective coverings for a wide range of industries and markets.

Additionally, all Sinclair & Rush companies are committed to providing the best in customer service through assistance with product selection, ease of ordering, and post-sale attention. We will partner with you to select the best product protection solution for your application. Online ordering is an option or our Account Coordinators can assist in processing orders. Post-sale documentation is provided, and we are happy to help with any questions.

With manufacturing plants on four continents, we are a true global supplier to over 20,000 customers worldwide. In addition to StockCap, the Sinclair & Rush family of companies includes GripWorks, VisiPak and Indepak. Learn more about these other brands and let us become your trusted partner for all your product protection needs.


The largest manufacturer of custom and stock hand grips utilizing a wide range of materials, finishes, sizes and colors.


Manufacturer and supplier of an extensive line of clear plastic packaging products including plastic tubes and containers, clamshell packages, blister packs and plastic boxes.


Specialists in design and precision thermoforming of high-quality, tight-tolerance trays, containers, clamshells and blisters.

Quote / Samples

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Request Quote
and/or Samples

Contact StockCap for volume pricing and samples for testing and color matching.

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Contact a Product
Protection Specialist

For help finding the best product protection solutions to meet your specific application.

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Shop Our
Online Store

For immediate access to our comprehensive line of stock caps, plugs, tapes, discs and more.

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