About Us

As a fourth-generation, family-owned and managed automotive supplier for more than 80 years, CPAC has a compelling history deeply rooted in customer dedication, diverse product offerings and operational excellence.

A global innovator servicing the diverse needs of today’s ever-evolving automotive industry, Cadillac Products provides a vast array of protective plastic, exterior and interior acoustical parts and door watershields, to satisfy consumer demands with superior excellence and quality performance.

With approximately 225 employees between our locations, our team consistently focuses on adhering to the highest level of safety, quality and productivity.

Our Vision Statement:

  • We are customer focused and the supplier of choice in the markets that we serve.
  • We bring cost effective solutions and value to an expanding customer base via an expanding line of niche products utilizing our plastic processing technology.
  • We are proactive to market trends and effectively surface, select and swiftly bring new products to market.
  • We maintain safe working environments and respect the dignity of our workforce.

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Our History

As a fourth-generation, family-owned automotive supplier for almost 80 years, CPAC has a compelling history deeply rooted in customer dedication, diverse product offerings and operational excellence.

Since 1942, when Cadillac Products was formed to meet the urgent needs of World War II, we have been putting our talent, energy and dedication to work for our customers. From materials and processing options, to design and development, we can create a cost-effective solution for your needs.

Please view our detailed timeline below, as we are overjoyed to share the heart and soul of our family history with you and yours.

Cadillac Bag Company, was founded during WWII when M.P. Williams, partner of Cadillac Bookbinding Company met with Chrysler to discuss a new Defense Packaging Program.

Sterling Heights, MI Plant opened (moved from Ferndale, MI) to consolidate all company operations under one roof. Product: Automotive Water Shields & Seat Covers.

Cadillac purchased a used polyethylene cast film extruder from Fabricon with hopes of using it to extrude film for Chrysler Water Shields.

GMC Truck & Coach Division awards first contract to Cadillac for thermoformed parts

Cadillac’s Automotive Trim Parts Plant adds transit coach air duct panels for GMC Truck & Coach Division & GM Diesel of Canada to our product line.

To better manage future growth a massive management reorganization split the company into three business units: 1. Film & Flex, 2. Thermoforming, & 3. Automotive

Chrysler Corporation recognized the excellent performance by CPI Sterling employees through the presentation of their Pentastar Award. The Sterling Plant had shipped 10 million parts to Chrysler with zero defects

General Motors recognizes our Trim Plant Operations with Supplier of the Year Award.

Product: hand wrapped parts, sequenced to GM.

Roseville, MI Plant opens – automotive operations transferred from Sterling Heights Plant.

Product: Watershields

Schertz, Texas Plant opens. Product: Water Shields and acoustic pads for GM, Nissan & ProMaster.

Injection molding operation added to Rogers City Plant to produce new energy absorption technology for front & rear bumper systems. Customer is GM & Magna

Developed brake and wheel covers to protect wheel brake systems during shipment to dealerships

Developed SOUNDLOC-SEAL and earned first dash mat program for FCA to be produced in new Troy, MI Plant (TRP).

Developed FIBERSORB and earned Transmission Shield program for Ford.

2019: General Motors recognizes CPAC as a 2018 Supplier of the Year Award Winner. This is the 2nd time our overall performance has been recognized with GM’s Supplier of the Year Award.



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CPAC Corporate

5800 Crooks, Suite 100
Troy, MI 48098
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Phone: (248) 813-8200
Fax: (248) 813-8282

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CPAC Roseville

29784 Little Mack
Roseville, MI 48066
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Phone: (586) 774-1700
Fax: (586) 774-7822

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CPAC Rogers City

4858 Williams Road
Rogers City, MI
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Phone: (989) 340-6800
Fax: (989) 766-8260
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CPAC Schertz

6389 FM 3009, Suite B203
Schertz, TX 78154
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Phone: (210) 651-9099
Fax: (210) 651-0020
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1750 Stephenson Hwy
Troy, MI 48083-2147
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Phone: (248) 781-8250
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