The Leader in Thermoformed Packaging

Clear Plastic Clamshell Packaging

Popular for packaging everything from fishing lures to thumb tacks, these plastic boxes are great for merchandising items that can be seen by your customers.

Clear Plastic Clamshell Packaging

Clear Plastic Blister Packaging

Blister packaging is an inexpensive option for creating sturdy packaging solutions. VisiPak can also assist with blister card design.

Clear Plastic Blister Packaging

Packaging Trays

Our packaging trays are carefully manufactured and stack packed to insure quality and ease of use at your plant.

Packaging Trays

Custom Thermoformed Packaging

The majority of thermoformed packaging can be classified as either clamshells, blisters or trays, but many of the products we produce are actually custom designed.

Custom Thermoformed Packaging

Stockclam Logo

Over 170 Clamshell Sizes,
In-Stock & Ready for Shipment

Same-Day Shipments and Low Minimum Quantities

View Stock Clamshells

Stockclam Cutout

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Central & Western
Manufacturing Locations

Central & Western
Manufacturing Locations

As part of the Sinclair & Rush family of companies, we have thermoforming operations centrally located in St. Louis, Missouri and on the west coast in Portland, Oregon. Our primary line of stock clamshell packaging is manufactured and warehoused in our St. Louis facility. The Indepak operation in Portland operates more as manufacturers of precision clamshell packaging and thermoformed trays.

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Call us at 1-800-949-1141.

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