Winsilicone.com is the website of Dongguan Tongsheng Electronic Technology Co., Ltd. (Tongsheng Silicone), a silicone rubber mold and product manufacturer based in Dongguan, Guangdong, China. The factory is ISO 9001 certified and has provided OEM and ODM manufacturing to global brands since 2014.
What LSR injection molding is for
Liquid silicone rubber (LSR) injection molding is used where parts need tight tolerances, consistent repeatability and higher output: precision components, seals and gaskets, consumer goods, electronics accessories, and medical or baby-adjacent products when the specified material grade allows it.
Not every part needs LSR. For simpler solid silicone geometries, thicker sections and moderate volumes, compression molding is often the more economical route. If you are deciding between the two, see compression molding vs liquid silicone injection molding and our LSR injection molding buyer's guide. Need thicker parts or lower tooling cost instead? Compare with our silicone compression molding manufacturer page.
Capabilities
- Food-grade silicone: FDA and LFGB material options
- Medical-grade silicone options
- Hardness range: 20 to 80 Shore A
- Custom mold design and making; mold development typically 15-25 days
- Mass production typically 20-35 days after sample approval
- Quotation within 24 hours
- Export worldwide
MOQ
MOQ depends on product complexity and mold type. For standard items MOQ typically starts at 1,000-3,000 pcs. For prototypes and trial orders, we accept smaller quantities. Contact us for a tailored quote.