Jamak’s silicone molding and overmolding services provide customers with precision-engineered parts that combine durability, reliability, and regulatory compliance. With onshore manufacturing in the United States, we help customers reduce tariff exposure and ensure secure supply chains for high-performance silicone components. Our facilities include over 100,000 square feet of ISO 14644-1 Class 8 cleanroom space, making them ideally suited for sensitive industries such as medical, aerospace, and defense where contamination control and repeatable quality are critical.

We offer multiple molding processes, including liquid silicone rubber (LSR) injection molding, high-consistency rubber (HCR) compression molding, and transfer molding, giving customers flexibility to match part geometry, volume, and performance requirements. Overmolding capabilities further extend design options by allowing silicone to be bonded directly to metals, plastics, or electronic assemblies, creating integrated parts that simplify installation, reduce overall weight, and improve long-term reliability. This combination of materials expertise, cleanroom manufacturing, and process versatility enables us to deliver silicone parts that consistently perform in extreme environments such as high heat, vibration, and chemical exposure.

• Made in the USA: Domestic sourcing and manufacturing reduces supply chain risk and mitigate tariff impact
• Cleanroom molding: ISO Class 8 facilities ensure contamination control for medical and aerospace programs
• Process flexibility: Liquid silicone rubber (LSR), high-consistency rubber (HCR), transfer molding, and compression molding available
• Overmolding capability: Bonds silicone to plastics, metals, and electronics for integrated assemblies
• Medical-grade readiness: FDA, USP Class VI, ISO 10993 compliant materials processed in FDA-registered facilities
• Aerospace and defense focus: Engineered compounds and tolerances for high-temperature, vibration, and extreme conditions
• Secondary operations: Automated trimming, bonding, assembly, and cleanroom packaging for production-ready parts
• Regulatory compliance: RoHS/REACH compliant materials with full documentation support

• Medical & Life Sciences: Seals and housings for diagnostic devices, wearable components, surgical instrument grips, implantable-grade overmolds
• Aerospace & Defense: Vibration isolation pads, environmental seals, high-temperature gaskets, EMI/RFI shielding overmolds
• Automotive & Industrial: Grommets, thermal barriers, vibration dampers, high-wear seals
• Electronics & Telecom: Keypad overmolds, connector seals, protective housings, waterproof assemblies