Liquid Silicone Rubber (LSR) molding is a highly specialized manufacturing process widely used in the medical industry due to its superior material performance, biocompatibility, and precision. Unlike standard plastic injection molding, LSR molding involves injecting a two-part, platinum-cured silicone into a heated mold, resulting in parts that are flexible, durable, and resistant to extreme temperatures and chemicals. These qualities make LSR an ideal choice for medical components such as seals, valves, diaphragms, sensor covers, baby care products, wearable devices, and other high-precision, skin-contact or implant-grade parts.

While LSR molding shares similarities with traditional plastic injection molding, it requires a completely different skill set in mold design and production execution. The flow behavior of liquid silicone, its curing characteristics, venting requirements, and the need for precise temperature control mean that only highly experienced engineers and toolmakers can achieve consistent, defect-free results. A poorly designed LSR mold can lead to flash issues, air traps, inconsistent hardness, and dimensional instability—problems that are unacceptable for medical applications.

KANOU works with specialized LSR mold design and production partners who bring deep expertise in handling medical-grade silicone. Our partners have the technical capability to engineer complex molds, manage multi-cavity precision tooling, and maintain rigorous process control throughout each production run. This ensures that every part meets strict regulatory, cosmetic, and functional requirements.

Moreover, we understand that LSR molding can be a challenge for customers who lack in-house capabilities or are transitioning from conventional plastic molding. To reduce risk and accelerate project timelines, KANOU is prepared to co-invest in production, including tooling, machinery, or even shared manufacturing cells. This collaborative model allows customers to scale up with confidence while minimizing upfront burden and operational complexity.

With our strong technical network, commitment to quality, and willingness to invest alongside customers, KANOU delivers a reliable pathway to successful LSR medical component production—efficiently, safely, and at the highest industry standards.