Silicone compression molding is a manufacturing process used to form solid silicone rubber parts by placing pre-measured silicone material into a heated mold cavity.

Our in-house mold workshop is designed to support large-scale silicone compression molding projects with high stability and efficiency.

Precision Machining & Process Control

Custom LSR molding solutions for medical, consumer, and industrial silicone parts, from prototyping to mass production.

Liquid silicone rubber (LSR) injection molding is a high-precision manufacturing process used to produce custom silicone parts with excellent consistency, flexibility, and durability. It is ideal for components that require clean molding, complex geometries, and stable performance in demanding applications.

We focus on custom liquid silicone rubber injection molding with an emphasis on process stability, precision, and scalable production. From early engineering review to stable mass manufacturing, we support projects that require reliable silicone part performance and consistent part quality.

From material verification to process monitoring and final inspection, we maintain a controlled workflow to support reliable LSR molding quality across prototype and production orders.

We manufacture a wide range of custom LSR parts, including seals, gaskets, valves, diaphragms, buttons, medical components, baby care parts, and other precision silicone products based on customer drawings or samples.

Yes. We support prototype development, low-volume production, and mass manufacturing for custom liquid silicone rubber parts, depending on project requirements, mold design, and expected order volume.

LSR injection molded parts are widely used in medical, baby care, consumer, electronics, automotive, and industrial applications because of their flexibility, temperature resistance, biocompatibility, and long-term durability.

We support different LSR material grades based on hardness, transparency, color, and application requirements. Material selection can be matched to medical, baby care, consumer, and industrial silicone part projects.

We can support projects that require additional processing such as overmolding, trimming, inspection, and selected secondary assembly steps, depending on the structure and function of the silicone part.

The right LSR material depends on part geometry, softness, transparency, operating environment, compliance requirements, and production volume. Our engineering team can recommend a suitable grade based on your drawings, samples, or application needs.

For an accurate quotation, it is helpful to provide 2D or 3D drawings, material requirements, part dimensions, tolerance expectations, estimated order quantity, and any special performance or compliance needs.

Yes. After prototype verification, we can continue with mold optimization, process adjustment, and stable mass production for custom LSR parts to support long-term manufacturing programs.

At Wellfine, we specialize in custom silicone printing and decoration, offering multiple techniques such as screen printing, pad printing, UV printing, and IMD. Our expert engineers ensure vivid colors, perfect adhesion, and long-lasting results for every silicone product, providing custom silicone printing solutions for your OEM projects.

Ideal for silicone products with complex 3D shapes or full-wrap decorative patterns.

Ideal for silicone products requiring clear logos or text, especially on curved or irregular surfaces.

Heat transfer printing is suitable for silicone products that require full-color graphics or detailed patterns, making it a practical choice for promotional items and short to medium OEM production.

Silicone digital printing is suitable for OEM projects requiring flexible artwork changes, full-color logos, and fast turnaround without tooling or plates.

IMD integrates pre-printed films directly into the molding process to create seamless, full-color surfaces.

Logos are formed directly in the silicone mold without inks or surface printing.

Selecting the right silicone logo printing method is not based on appearance alone.

Silicone over-molding is a molding process that uniformly coats silicone material onto the surface of plastic or metal inserts through high-temperature vulcanization, firmly bonding two materials into one. It enables sealing, waterproofing, anti-slip shock absorption, insulation, temperature resistance and improved tactile performance.

Physical roughening anchoring + silane primer chemical bonding + plasma surface activation ensure strong adhesion and effectively prevent delamination.

LSR process supports ultra-thin silicone layers down to 0.3mm with controllable dimensional tolerances, meeting strict requirements for precision sealing and waterproofing in electronics.

Stable over-molding on stainless steel, aluminum alloy, PC, PA, ABS, PBT and other substrates, with targeted surface treatment solutions.

Dedicated project engineers follow up from DFM review, prototype validation to mass production, ensuring process stability and on-time delivery.

HCR over-molding with built-in heating element. Food-grade silicone, IP65 waterproof sealing, high temperature resistance and anti-slip surface.

Precision LSR over-molding with flexible LED circuit. Medical-grade skin-friendly silicone, fully sealed insulation, soft ergonomic fit.

We adopt a triple bonding system: physical roughening for mechanical interlocking, silane primer for chemical bonding, and plasma activation for enhanced surface energy. We also recommend mechanical locking structures such as undercuts and through holes, combined with post-curing process to maximize adhesion reliability.

For LSR injection over-molding, the minimum thickness can reach 0.3mm. For HCR compression molding, we recommend a minimum thickness of 0.8mm. The exact value depends on product structure, substrate type and design requirements.