Custom Silicone & Rubber Parts Manufacturing

TONGDA LINK excels in producing high-quality silicone and rubber components, with expertise in LSR (Liquid Silicone Rubber) molding, traditional rubber injection molding, and precision tool making. Our advanced capabilities enable us to serve a diverse range of industries, including:

  • Automotive & Transportation: Seals, gaskets, and vibration-damping parts.
  • Catering & Food Industry: FDA-compliant silicone products like baking molds and utensils.
  • Toys & Childcare Products: Safe, non-toxic silicone components for toys and baby products.
  • Electronics & Electrical: Heat-resistant and insulating silicone parts for durable performance.
  • Medical & Healthcare: Biocompatible LSR components for medical devices and wearables.
  • Petrochemical & Machinery: High-performance rubber seals and custom parts.
  • Sports Equipment: Shock-absorbing and durable silicone solutions.
  • Lighting & Audio Systems: Transparent, high-temperature silicone components.
  • Clothing & Textiles: Flexible and durable silicone applications.

Our LSR molding technology supports precision manufacturing of complex geometries, ensuring superior durability, flexibility, and heat resistance. With a focus on meeting industry-specific standards and offering tailored solutions, we are your reliable partner for all silicone and rubber manufacturing needs.

TONGDA LINK is a professional tool making factory, we make plastic injection molds for plastic products, also do custome silicone & rubber parts tool making and production.

The silicone products we have made include baby pacifiers, glasses nose pads, swimming goggles, medical catheters, etc. These products can reach food grade, medical grade, and no harm to the body.

Consumer use like phone holder & cover, phone case, tablet PC cover, overmolding USB disk cover & case, ladle cover, cup & cup cap, foldable bowl, pet bowl, portable bottle accessory, keypad, shovel handle, spade handle, scoop & spatula gasket, silicone coasters, brush & plug, automotive key case, ice cream & chocolate mold, bottle sleeve, facial cleansing brush, electric face cleansing brush device, beauty silicone massager, face brush silicone and etc.

In addition to these, TONGDA LINK has also made many rubber products for industrial purposes, including auto parts, mechanical parts, gaskets, sealing structural parts, overmolding, two-color injection molding and so on.

MAKE RUBBER & SILICONE INNOVATIVE PRODUCTS POSSIBLE

Creative silicone products are essential in everyday life, especially in maternal and child products, beauty tools, and household essentials. In industrial applications, rubber and silicone seals—whether standalone gaskets, overmolded plastic parts, or high-performance components—play a crucial role in ensuring reliability and functionality.

TONGDA LINK combines expertise in plastic mold manufacturing with advanced capabilities in custom silicone rubber injection molding and LSR (Liquid Silicone Rubber) molding. Our cutting-edge technologies enable the production of complex, high-precision components, offering superior flexibility, heat resistance, and durability.

From biocompatible LSR parts for medical and healthcare applications to industrial-grade rubber seals and custom-designed silicone products, we help customers bring their ideas to life. With a focus on innovation and quality, TONGDA LINK transforms concepts into tangible solutions tailored to your unique requirements.

Traditional Rubber vs. Injection Molding Materials

Modern Injection Molding Materials

  • Thermoplastic Elastomers (TPEs):
    • A class of materials combining rubber-like flexibility and plastic-like processability.
    • Can be melted, shaped, and remolded without vulcanization.
    • Commonly used in products requiring soft touch, such as overmolded grips or seals.
  • Liquid Silicone Rubber (LSR):
    • A two-part silicone material that is injection molded.
    • Features include high-temperature resistance, flexibility, biocompatibility, and precision molding for intricate designs.
    • Widely used in medical devices, baby products, automotive seals, and kitchenware.

Traditional Rubber

  • Requires vulcanization (a process of adding sulfur or other curing agents to strengthen the material).
  • Cannot be injection molded in its conventional form.
LSR is ideal for medical and healthcare products
capabilities in custom silicone rubber injection molding and LSR (Liquid Silicone Rubber) molding

Key Benefits of Injection Molding with TPEs and LSR

  • High production efficiency for complex and precise parts.
  • Reduced material waste compared to traditional processes.
  • Ability to create soft, flexible, and durable components.
  • Wide range of applications across industries like medical, automotive, consumer goods, and more.

Applications of TPEs and LSR in Injection Molding

  • TPEs are favored for:
    • Automotive seals and gaskets.
    • Overmolded grips for tools and electronics.
    • Flexible connectors and soft-touch parts.
  • LSR is ideal for:
    • Medical and healthcare products (e.g., catheters, seals).
    • Baby and child products (e.g., pacifiers, bottle nipples).
    • High-precision industrial parts and seals.
    • Food-grade kitchenware (e.g., baking mats, spatulas).

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TONGDA LINK one-stop service makes the production of rubber and silicone products more efficient. We help customers rapid prototypes, tool making and injection molding production.

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What rubber & silicone can be injection molded?

Rubber and silicone products made through injection molding often use thermoplastic elastomers (TPEs) or liquid silicone rubber (LSR), both of which are advanced materials designed for injection molding processes.

Rubber for Injection Molding

  • TPE used as adult products, sports equipment, etc.
  • TPR used as CVJ dust cover, steering gear cover, muffler gear, disposable syringe rubber stoppers, etc.
  • TPU used as underwater sports equipment, fitness equipment.
  • TPV used as dust covers, air intake pipes, ventilation, etc.
  • TPO used as bumpers, radiators, chassis, protective strips, etc.
  • Silicon Rubber used as anti-noise earplugs, artificial blood vessels, etc.

Rubber can`t be injection molding

  • NR used as automobile tires and some shock-absorbing, etc.
  • SBR used as tires, rubber shoes, vacuum cleaner seals, etc.
  • BR used as wear-resistant products, cold-resistant products.
  • FKM used as oil-resistant and high-temperature-resistant products.
  • NBR used as oil-resistant hoses, conveyor belts, rollers, etc.
  • IIR used as underground cables, shock-proof rubber products, etc.

Rubber & Silicone application

Silicone is mainly used in the maternal and child industry, medical industry, beauty industry, daily household industry and so on. Rubber is mainly used in the automotive industry, the machinery industry and the construction industry. From functional prototypes to full production runs, rubber & silicone injection molding’s key industrial applications include:

Mother and baby products

Including silicone spoons, silicone bowls, silicone dinner plates, silicone teethers, silicone pacifiers, silicone food supplement bottles, silicone bibs, etc.

baby silicone products

Outdoor sports series products

Including folding water cups, telescopic water bottles, sports bracelets, sports watches, silicone shoe covers, folding stools, fishing utensils, etc.

Water Bottle Sports Cups with Carabiner

Beauty series products

Including face wash brush, facial cleansing instrument, makeup brush cleaning pad, nail pad, cosmetic mirror, silicone powder puff, silicone massage instrument, etc.

facial brush silicone cleansing

Industrial products

Including seals for automotive, medical, construction, machinery and etc. Car wipers, buffers, medical care equipment, mechanical seals, etc.

Explore plastic injection molding news and industry updates

Find industry news, resources, insight into the silicone & rubber injection molding process, and more, on the TONGDA LINK blog:

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TONGDA LINK Manufacturing Capabilities

At TONGDA LINK, we are your premier partner for comprehensive plastic injection mold engineering, design, and manufacturing solutions. With a commitment to excellence and innovation, we specialize in delivering high-quality molds tailored to meet the unique demands of various industries.