Mainland Products, Inc.

Custom Molds for the Plastic Industry

Full-service custom mold maker from concept through foundry to end use.

Quality materials and workmanship.

Largest west coast manufacturer of rotational molds.


Mainland Products, Inc.
2161 Maple Privado
Ontario, CA 91761
(909) 923-4353

Mainland Products Custom Mold Maker

Welcome to Mainland Products, Inc.

Our specialty is manufacturing high-quality, custom, rotational tools and molds. We draw on three decades of molding experience to provide our customers with the best possible product and service available. Our full-service facility is equipped to take initial concepts and turn them into custom-created molds that will satisfy any request. From prototype to foundry to end use, Mainland is the mold maker to help your company reach its goals. » read more



• Consulting & Design
• Pattern Production
• In-House Foundry
• Complete Mold Shop

• Custom Spider & Frame Fabricating
• Surface Texturing
• Mold Repair & Refurbishing
• Engraving