Custom Silicone Parts Manufacturer Guide: Types, Process & Advantages [2026]
Author: Site Editor Publish Time: 2026-05-25 Origin:
Site
Custom silicone parts are in demand across automotive, medical, food, and electronics industries. This guide covers everything you need to know before sourcing from a Chinese manufacturer.
Types of Silicone Rubber
| Type | Code | Key Properties | Applications |
|---|
| VMQ | Polydimethylsiloxane | General purpose, -60°C to +230°C | Seals, gaskets, general molding |
| PVMQ | Phenyl-containing | Low temp to −115°C | Aerospace, cold climate |
| FVMQ | Fluorosilicone | Oil + fuel resistance | Aerospace fuel systems |
| LSR | Liquid Silicone Rubber | High precision, clean production | Medical, baby products, optics |
Silicone Molding Processes Compared
- Compression Molding: Low tooling cost, good for large parts, longer cycle time
- Injection Molding: High precision, fast cycle, higher tooling cost
- LSR Injection: Cleanest process, ideal for medical/food, tight tolerances
- Transfer Molding: Good for parts with metal inserts
How to Choose a Silicone Parts Supplier in China
- Verify FDA / LFGB food-grade certification for food and medical applications
- Check ISO 13485 for medical-grade silicone parts
- Request material data sheets and RoHS/REACH compliance reports
- Review their experience with your specific industry (automotive, medical, etc.)
- Confirm their quality inspection process (visual, dimensional, material testing)
- Evaluate communication responsiveness — a quality supplier responds within 24 hours
Common Silicone Grades Available
- Food Grade (FDA/LFGB): Kitchenware, baby products, beverage dispensing
- Medical Grade (USP Class VI / ISO 10993): Implants, catheters, respiratory masks
- Industrial Grade: Seals, gaskets, vibration dampening
- High Tear Strength: Requiring durability (watch bands, protective covers)
- Conductive/Semi-conductive: Electronics shielding and contacts
Anlintech is a professional custom silicone parts manufacturer in China with FDA and ISO 13485 compatible materials. Request a quote for your custom silicone parts today.
