Liquid Compression Molding (LCM) Resins

Liquid Compression Molding (LCM) Solutions – High-Performance Resins

Engineered Composites Incorporated (ECI) offers advanced molding solutions using liquid compression molding (LCM) resins. This family of materials can use a variety of glass reinforcements to produce strong, detailed components.

LCM Liquid Compression Molding at ECI:

  • Integration of preforms, cores, and inserts into the molding process
  • Custom tooling design
  • 3D scanning and quality verification for precise dimensional accuracy
  • Support for fire-retardant, low-smoke, and high-temperature LCM resins
  • Assembly, coating, and finishing services under one roof
  • ISO 9001:2015 certified quality control program

The Material Properties of LCM 

LCM materials create fiber-reinforced parts with numerous advantageous mechanical properties and minimal voids. A low-viscosity thermosetting resin is injected into a mold containing dry fiberglass laminate schedules or preforms. Once cured, the result is a strong, high-fiber-content composite part with excellent repeatability and surface finish.

  • Excellent Fiber Wet-Out – Minimizes voids and maximizes mechanical strength
  • Tight Dimensional Control – Ideal for high-precision, closed-mold applications
  • High Fiber Volume Fraction – Superior strength-to-weight ratios
  • Complex Part Geometry – Easily conforms to intricate shapes and designs
  • Consistent Surface Finish – Smooth, resin-rich finishes suitable for coating or painting
  • Material Versatility – Compatible with various reinforcements and resin chemistries
  • Environmentally Contained Process – Minimal emissions and clean work environment

The Advantages of the LCM Process for your Molded Products:

LCM is particularly well-suited for parts with complex geometries, large surface areas, and/or thick parts that require complex design solutions. Some of the common molded resin product possibilities we produce at ECI include:

  • Construction – Structural panels, custom architectural elements, and composite enclosures
  • Marine – Lightweight hull structures, waterproof hatches, and corrosion-resistant covers
  • HVAC – Molded air-handling components, insulated ducting, and fan housings
  • Aerospace and Defense – Complex sensor housings and equipment panels, lightweight frames, and fairings

Essentially, the LCM process enables the production of high-strength parts and ensures quality. Thus, it is suitable for use in high-demand environments where strength and durability are critical.

Quality LCM Products – Molded in the U.S.A.

Whether you’re producing large composite structures or tight-tolerance technical parts, Liquid Compression Molding offers the performance and flexibility your product demands. Let ECI help you engineer a better solution, with the materials, equipment, and experience to bring your composite concept to life.