Why Choose Liquid Silicone Rubber Molding

Liquid silicone rubber has excellent resistance to heat, electricity and chemicals, although it can be attacked by certain solvents such as gasoline or mineral spirits, which is why it can be used in high-temperature applications in the automotive industry, but not in fuel and pipeline. And it has low compression set - little permanent set when force is applied and removed - making it ideal for elastomers. This allows for faster and cheaper tooling compared to traditional steel tools. We offer many additional additional services to support your project.

Advantages of Liquid Silicone Rubber Molding

·       Batches stability (ready-to-use material)

·       Process repeatability

·       Direct injection (no waste)

·       Short cycle time

·       ‘Flashless’ technology (no burrs)

·       Automated process

·       Automated demolding systems

How Does Liquid Silicone Rubber Moulding Work?

Due to the flexibility of the LSR, parts are manually removed from the mold, so ejector pins are not built into the mold design. Like standard aluminum tools, LSR forming tools are manufactured using CNC machining to create tools that can withstand the high temperatures of the LSR forming process. After milling, the tools are hand polished according to customer specifications, resulting in six standard finish options.

The finished mold is loaded into a state-of-the-art dedicated LSR injection molding machine that is fine-tuned to precisely control shot volume to produce the most consistent LSR parts.

Because LSR is a thermoset polymer, its molded state is permanent—once the rubber mold has solidified, it cannot be remelted like thermoplastics. Parts (or first run) are packed and shipped shortly after the run is complete.