Liquid silicone rubber (LSR) has become a material of strategic importance for components that must withstand heat, high voltage, moisture, and repeated mechanical stress. Dongguan Times Silicon Industry Co., Ltd. is a China-based silicone material manufacturer — founded on December 27, 2021, and operating since July 1, 2022 — that specializes in the R&D, production, and sales of new silicone materials, including platinum catalysts, silicone foam, and silicone treatment agents. The company operates a 15,000 m² production base, exports 55% of its output, and serves markets including China, South Korea, the United States, Japan, and Africa. This article outlines the company's OEM/ODM capabilities, quality systems, and product portfolio for procurement and engineering teams evaluating LSR supply partners.

ISO9001 certification supports the documented quality management system behind the company's LSR production and testing.

The Procurement Challenge: Matching LSR Performance to Application

Procurement teams evaluating LSR for new energy vehicles, photovoltaic modules, or precision electronics rarely find that a standard off-the-shelf grade satisfies the full requirement set. Hardness, tear strength, temperature resistance, odor, transparency, and certification compliance often must be balanced within a single formulation. For buyers moving from evaluation to execution, the key questions are operational: Can the supplier customize hardness and viscosity? What are the minimum order quantities and lead times? Which certifications apply? How is batch consistency guaranteed?

The market context explains why these questions matter. According to data referenced by Precedence Research and the IEA, approximately 63% of battery pack sealing systems utilize silicone elastomers for flexibility and durability. Global market estimates compiled by Grand View Research, Global Market Insights, and Market Research Future place the liquid silicone rubber market at roughly USD 2.8 billion to 3.8 billion in 2024, with expectations of reaching USD 5.0 billion to 7.55 billion by 2030–2035. Source definitions vary, but the direction is consistent: LSR demand is expanding in applications where reliability and safety requirements are strict.

For an original equipment manufacturer or component processor, the practical implication is that supplier selection now hinges on verifiable manufacturing capability rather than price alone.

Brand Solution: A Silicone Manufacturer Built for Customization

Against this backdrop, Dongguan Times Silicon Industry Co., Ltd. positions itself as an OEM/ODM production partner for silicone raw materials and custom formulations. The manufacturer provides OEM and ODM production services, with a monthly production capacity of 80 tons, scalable to 110 tons during peak seasons.

The product portfolio covers the full range of silicone raw materials: liquid silicone for adult products and lifelike dolls, overmolding and casting liquid silicone, pad printing liquid silicone, liquid silicone base gums, base gums for foaming, vinyl silicone oil, hydrogen-containing silicone oil, silicone resin, platinum catalysts, inhibitors, silicone treatment agents, silicone adhesives, addition-curing mold silicone, and silicone resin for wire and cable sleeves. These materials are applied in new energy, home appliances, precision electronics, auto parts, medical care, adult products, mechanical equipment, and silicone ink.

Custom LSR formulations are prepared in the AB agent preparation area, supporting OEM/ODM programs with batch consistency.

Customization is a core capability. Customers can specify Shore hardness from 7±1 to 38±1 A, viscosity, color (transparent, translucent, or opaque), odor level (low or odorless), formulation grade (food or medical), curing method (room or heat cure), packaging specifications, and custom skin feel such as soft flesh-like texture or high resilience.

The company backs this with a documented quality system. Quality control includes raw material incoming testing for purity, heavy metals, and harmful substances; in-process monitoring of viscosity, hardness, and mixing ratio; finished product full testing of curing performance, odor, and biocompatibility; and third-party sampling for FDA/RoHS compliance.

Capacity and quality are complemented by commercial flexibility. The minimum order quantity is 1 kg for standard products and 5 kg for custom formulations, with lead times of 7–10 working days for stock products and 15–25 working days for custom formulations or bulk orders.

On the compliance side, the company has passed ISO9001 International Quality Management System Certification (certificate no. 25025Q12678R0S). Its products have obtained RoHS, REACH, FDA, LFGB, and halogen-free certifications. The company also holds a High-tech Enterprise Certificate (GR202444010636) issued jointly by China's Ministry of Science and Technology, Ministry of Finance, and State Taxation Administration, and a utility model patent (ZL202323622488.5) for a silicone rubber treatment agent bonding device.

For the new energy segment specifically, the company established a wholly-owned subsidiary, Guangdong Times Energy Storage New Material Technology Co., Ltd., in 2023. The subsidiary focuses exclusively on special silicone rubber new materials for the new energy industry, including foamed liquid silicone, ceramicized liquid silicone, silicone foam, solid silicone, composite silicone, adhesive silicone, and special silicone treatment agents for new energy vehicles, rail transit, network communication, consumer electronics, electromechanical equipment, military industry, and aerospace.

Technical Foundation: Platinum-Cured Addition-Curing Chemistry

Addition-curing liquid silicone rubber is a two-component system. The base polymer is vinyl-terminated polydimethylsiloxane — supplied by Dongguan Times Silicon as vinyl silicone oil (TVF series) — which cross-links with hydrogen-containing polysiloxane in a hydrosilylation reaction catalyzed by platinum. This chemistry delivers low odor, low by-product formation, and precise control of final hardness, which is why the company's product data sheets consistently list appearance, viscosity, hardness, tensile strength, elongation, and tear strength as core control parameters.

Dongguan Times Silicon supplies several building blocks of this chemistry:

• Vinyl silicone oil (TVF-L-50 through TVF-H-35W): clear, viscosity 35–50W, volatile content below 0.5%, vinyl content 0.037–1.497. Applicable in electronic and electrical appliances, photovoltaic systems, automotive, and new energy batteries.
• Platinum catalysts (TPL-1000 through TPL-5000, PTR-3000/5000): transparent, viscosity 320–1000, platinum content 1000–5000 ppm, based on platinum plus siloxane/alcohol solvent. They catalyze hydrosilylation reactions, enabling fast room- or heat-temperature curing.
• Special base adhesive for liquid foaming (BAS-1716, BAS-1812, BAS-80931): translucent, viscosity 15W–350W, hardness 17–51, tensile strength 5–7, elongation 300–500, tear strength 15–17. Used for formed liquid foamed silicone rubber in electrical appliances, photovoltaic, and automotive applications.
• Fiber glass sleeve with silicone resin (TS3034B, TS3039B, TS3045-01B, TS3045B, TS3049B, TS6123A/B, TS6125A/B): resin content 100, viscosity 10,000–55,000, hardness 20–35, heat resistance to 200°C, hardening temperature -55°C, brittleness temperature -73°C. Applied in new energy vehicles, photovoltaic and energy storage, and aerospace and defense.
• Adult products LSR for overmolding (TS6807A/B through TS6838A/B): clear, viscosity 4000–25,000, hardness 7±1 to 38±1 Shore A, based on vinyl polydimethylsiloxane and hydrogen-containing polysiloxane.

A utility model patent for a silicone rubber treatment agent bonding device reflects the company's in-house process development capability.

The customization parameters map directly to performance attributes. Low-hardness grades (7–38 Shore A) serve soft-touch and cushioning applications; high tear strength and elasticity are controlled through base gum and crosslinker selection; transparent and translucent appearances are achieved through formulation cleanliness; low-odor and odorless grades suit enclosed consumer and medical environments; and food/medical formulation grades support compliance-driven applications.

Application Scenarios: From EV Wire Harnesses to Precision Electronics

New energy vehicle battery packs and high-voltage wiring

One documented use case involves silicone resin (product 4727) for impregnation and coating of fiberglass insulation sleeves. A wire harness factory in the Yangtze River Delta uses the resin to form a dense, flexible insulating coating after curing. The coating protects automotive, home appliance, and new energy equipment wire harnesses, motor windings, and transformer coils against temperatures from -60°C to 200°C, high voltage, moisture, and corrosion. Over three years of continuous stable supply — with annual purchases of 300 tons in regular batches of 13 tons — the customer reduced coating defect rate from 2.8% to 0.5% and increased production yield to 99.5%. The customer's sleeve products have a service life of 10 years or more under normal use.

Photovoltaic and energy storage systems

The subsidiary's portfolio — foamed liquid silicone, ceramicized liquid silicone, silicone foam, and composite silicone — targets high-end precision fields including photovoltaic and energy storage. The special base adhesive for liquid foaming is specified for electrical appliances, photovoltaic, and automotive applications, and vinyl silicone oil is listed as applicable to new energy batteries.

Motor and transformer insulation

The same fiber glass sleeve silicone resin family is applied for motor windings and transformer coils, where heat resistance and high-voltage breakdown performance are decisive. Cold resistance data — hardening temperature -55°C and brittleness temperature -73°C — supports outdoor and extreme-climate installations.

Precision electronics and food/medical-grade components

A platinum catalyst case study shows how formulation adaptability supports demanding end uses. A large liquid silicone manufacturer in the Pearl River Delta and a top organosilicon group used the catalyst for addition-cure liquid silicones in adult realistic flesh-like silicone, food-grade silicone, electronic keypads, and seals. The catalyst is adaptable to low-odor and medical/food-grade silicone systems with no residual odor and no impact on biocompatibility. With annual purchases of 80 kg to 500 kg over three years of stable supply, the project achieved a 30% increase in curing efficiency, a 25% increase in per-batch capacity, a defect rate reduction from 2.5% to 0.6%, and a product yield of 99.4%.

Low-hardness, biocompatible overmolded products

For realistic body molds and adult toys, the TS6800 series LSR offers customizable hardness from 7 to 38 Shore A with adjustable viscosity and curing method. The material is biocompatibility tested, non-bleeding, and non-irritating, meeting human contact safety standards. In a three-year cooperation with Chinese brand clients — 80 tons annually in standard 5-ton batches, with the largest client ordering 150 tons per year — defect rate dropped from 3% to 0.8% and production yield reached 98%.

Market Trends Supporting LSR Adoption

Market data assembled by third-party researchers supports the strategic case for LSR sourcing. Grand View Research reports that medical-grade LSR generated approximately USD 458.7 million in revenue in 2024, a dominant and fast-growing segment within the medical silicone rubber market. This aligns with the company's food/medical formulation grades and FDA/LFGB certifications. SNS Insider projects the thermally conductive silicone rubber market to grow at a CAGR of 8.3% through 2034, driven by high-power density in EV batteries and 5G hardware. These figures point to rising demand for silicone materials that combine electrical, thermal, and mechanical performance in a single formulation.

At the same time, the supply base is evolving around buyers' requirements for certified quality and customization. The global LSR field includes major material groups such as Dow Inc., Wacker Chemie AG, Momentive Performance Materials, and Shin-Etsu Chemical Co., Ltd., according to Stratview Research. Specialist manufacturers such as Dongguan Times Silicon differentiate through batch consistency, formulation flexibility, documented quality systems, and responsive technical support for mid-volume and custom programs.

LSR vs. Traditional Elastomers

Compared with conventional elastomers, addition-curing LSR offers several structural advantages. Peroxide-cured high-consistency rubber (HCR) requires more processing steps and can leave curing by-products that affect odor and biocompatibility; injection-molded LSR flows as a liquid, cures rapidly in the mold, and supports automated production of complex geometries. Against thermoset rubbers such as EPDM, LSR generally provides a wider service temperature range, better long-term aging behavior, and cleaner compliance profiles — characteristics valued in high-voltage and human-contact applications.

One honest limitation should be weighed during sourcing. LSR raw material cost per kilogram is generally higher than that of commodity elastomers such as EPDM, and liquid injection molding requires dedicated tooling and equipment. For components with moderate thermal, electrical, or biocompatibility demands, conventional rubbers can deliver sufficient performance at lower cost. LSR is most justified where its temperature resistance, precision molding capability, or compliance attributes are decisive.

Future Outlook

Looking ahead, the direction of LSR demand is toward higher performance per unit of material: greater thermal stability, better electrical insulation, cleaner compliance, and lighter weight. New energy vehicles, photovoltaic systems, energy storage, and hydrogen-related equipment are pushing silicone formulations toward foamed and ceramicized structures that manage heat, vibration, and high voltage simultaneously. Dongguan Times Silicon's dual structure — a full-category parent company and a new-energy-focused subsidiary — reflects this specialization trend. For procurement teams, the practical takeaway is that LSR suppliers with in-house formulation capabilities, certified quality systems, and flexible order terms are better positioned to support product programs through scale-up and series production.

FAQ

Does the manufacturer offer OEM/ODM services?

Yes. Dongguan Times Silicon Industry Co., Ltd. provides OEM and ODM production services for liquid silicone rubber and related silicone materials, with a monthly production capacity of 80 tons, scalable to 110 tons during peak seasons.

What customization options are available for LSR?

Customization covers Shore hardness (7±1 to 38±1 A), viscosity, color (transparent, translucent, or opaque), odor level (low or odorless), formulation grade (food or medical), curing method (room or heat cure), packaging specifications, and custom skin feel (for example, soft flesh-like texture or high resilience).

What is the minimum order quantity?

The MOQ is 1 kg for standard products and 5 kg for custom formulations, negotiable for long-term partners.

What are the lead times?

Standard lead time is 7–10 working days for stock products and 15–25 working days for custom formulations or bulk orders, adjustable based on complexity and quantity.

Which certifications apply to the company and its products?

The company holds ISO9001 certification (certificate no. 25025Q12678R0S). Products have obtained RoHS, REACH, FDA, LFGB, and halogen-free certifications. The company also holds a High-tech Enterprise Certificate (GR202444010636) and a utility model patent (ZL202323622488.5).

What quality control procedures are in place?

Quality control includes raw material incoming testing (purity, heavy metals, harmful substances), in-process monitoring (viscosity, hardness, mixing ratio), finished product full testing (curing performance, odor, biocompatibility), and third-party sampling for FDA/RoHS compliance.

Which applications and industries are supported?

Products are applied in new energy, home appliances, precision electronics, auto parts, medical care, adult products, mechanical equipment, and silicone ink. The subsidiary Guangdong Times Energy Storage New Material Technology Co., Ltd. serves new energy vehicles, rail transit, network communication, consumer electronics, electromechanical equipment, military industry, and aerospace.

Which markets does the company serve?

The company's export ratio is 55%, with main markets including China, South Korea, the United States, Japan, and Africa, and additional export markets in Europe, North America, Southeast Asia, and Australia.