Sheet Molding Compounds (SMC)

Molding Products manufactures’ molded-in-color SMC for use in the compression molding of light fixtures, lavatory sinks, shower stalls and bases. The improvement in part quality generated by an SMC makes this a fast-growing market segment.   Molding Products is a recognized sheet molding specialist in a wide range of industries. We have experience with virtually every part specification and molding variable imaginable. From compound formulation, mold and process analysis to test runs, we offer you access to our talented technical teams and give you sheet molding solutions that surpass your expectations. Our mixing operation is one of the largest in the United States, with lot capacity up to 80,000 pounds.


SMC Resins and Low-Profile/Low-Shrink Additives

Molding Products manufactures low-density sheet molding compounds for Tier 1 automotive plants to help make parts lighter. The company also supplies structural high-glass content SMC for very high-heat and impact strength parts. SMC is appropriate for applications including:

  • Bumper beams
  • Class A panels
  • Headlamp housings
  • Heat shields
  • Truck fairings
  • Hoods
  • Marine engine and hatch covers
  • Sanitary ware
  • Satellite dishes
  • Sporting good equipment
  • Step assists
  • Sun shades
  • Valve covers

Let us design and support your next SMC materials system.


Molding Products uses Interplastic Corporation’s Simlar® and CoREZYN® and other resins for sheet molding and bulk molding compound applications for housewares, automotive and construction industries. These sheet molding resin applications, include:

  • Automotive spoilers
  • Cowls
  • Radiator supports
  • Valve covers
  • Lift gates
  • Outlet housings
  • Plumbing fixtures
  • Insulators
  • Molded sinks
  • Microwave dishware
  • Appliance parts
  • And more


Molding Products utilizes C Series polyester-based colorants from Interplastic Corporation’s Gel Coat and Colorant group and other suppliers. Colorants are made with the highest quality pigments formulated for use with polyester resin systems. These smooth pigment pastes quickly blend and distribute when stirred into the liquid resin. Opacity is obtained at various colorant levels, depending on the part’s thickness and color. All CoREZYN® brand standard colorants are formulated without heavy metal pigment for use in SMC applications.