Liquid Injection Molding

Tips to Save You up to 80% of the Cost for Your LIM Project

  • Wall and Rib Thicknesses
  • Maximum Part Size
  • Mass Reduction & Uniform Wall Thickness
  • Parting Lines
  • Expected Tolerances
  • Wall and Rib Thicknesses

    LSR has the capability to fill a thin wall section with fewer challenges. Parts can have a wall as thin as 0.010 in (0.25 mm), depending on the size of the wall and the location of contiguous thicker sections. Rib thickness should be approximately 0.5 to 1.0 times the thickness of the adjacent walls.

  • Maximum Part Size

    The following are approximate part sizes:

    · 5 inches by 5 inches by 2 inches (127 mm by 127 mm by 50 mm)

    · No deeper than 2 inches (50 mm) from any parting line

    · Maximum projected mold area of 17.6 square inches (113.55 sq cm)

    · The maximum part volume of 4 cubic inches (65.55 ccs)

  • Mass Reduction & Uniform Wall Thickness

    The LSR is applied for a uniform wall thickness because of its superior ability to stick well with wall section deviations.

    It reduces the mass of the product, and the design is improved.

    Generally, a LSR product with less mass and uniform wall thickness would be less in cost.

  • Parting Lines

    Determining the location of the parting lines is one of the initial steps in the tooling process. To make the process easier, minimize parting lines to produce cleaner parts and save time.

  • Expected Tolerances

    Well-designed parts usually have a linear tolerance of 0.025 in/in (0.025 mm/mm). You will also need to consider flash allowance.

Details of DX Liquid Injection Molding

Advantages & Benefits of DX Liquid Injection Molding

  • High Production Rates & Shorter Production Cycles
  • Precision Manufacturing Method
  • High-Quality Stability
  • More Feasible for High or Very High Volume Production
  • Full Automation Is Possible
  • Cleanroom Production Available

How DX Liquid Injection Molding Benefits You


Liquid injection molding is a process where silicone rubber is vulcanized with a LIM machine. Different from compression, the raw material is liquid silicone rubber (LSR). LSR is a low-viscosity material and can be injected into a LIM mold. The heat from the LIM mold will then be transferred to LSR and after optimal cure time, the product is formed and will be ejected automatically or manually.

Recommended Application
  • High/very high volume products;
  • Precision parts; high-end products;
  • Medical products; baby products;
  • Overmold products;
  • Products require high level of hygiene condition.

With More than 30 Years' Experience

DX provides you with all-around silicone product customization services for valued customers like you.