Custom liquid silicone rubber (LSR) injection molded products for medical, dental, and consumer health applications. Three product categories: (1) Transparent food-grade silicone face masks for respiratory or aesthetic use; (2) Silicone nose pads for eyeglasses and CPAP masks; (3) Dental guards / mouthguards for bruxism, sports, and whitening trays.
| Product types | Face mask / Nose pad / Dental guard / Mouthguard |
| Material | Food-grade transparent liquid silicone rubber (LSR) |
| Hardness range | Shore A 20–80 (specify per application) |
| Color | Clear / translucent / custom tint |
| Process | LSR injection molding (2-shot or overmolding available) |
| Food-grade standard | FDA 21 CFR / EU 10/2011 / LFGB |
| Biocompatibility | ISO 10993 (medical contact) |
| Tooling lead time | 20–30 days (new mold) |
| Production MOQ | 500 pcs (after mold approval) |
| Custom shapes | From client drawing / 3D file / sample |
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LSR Injection Molding — Why EKINSUN
Liquid silicone rubber (LSR) injection molding requires specialized equipment and process expertise distinct from conventional thermoplastic molding. EKINSUN's facility runs dedicated LSR molding cells with 2-component injection systems, temperature-controlled molds, and controlled-environment assembly.
Custom silicone parts buyers — dental product brands, CPAP accessory companies, medical device OEMs — need a partner who can work from a concept sketch or 3D file, build tooling to tight dimensional tolerances, and maintain consistent Shore hardness batch-to-batch. We sign NDAs before reviewing designs.
- Food-grade LSR: FDA 21 CFR 177.2600 compliant — safe for oral/nasal contact
- Shore A 20 (ultra-soft) to Shore A 80 (firm guard) in same facility
- Overmolding onto PP/ABS substrates for mask frames and CPAP components
- 2D drawing, 3D file (STEP/STL), or physical sample all accepted as design input
FAQ
Food-grade (FDA 21 CFR / EU 10/2011) certifies safety for oral/nasal contact with food or drink. Medical-grade adds ISO 10993 biocompatibility testing for prolonged tissue contact. We can supply either — specify application at inquiry.
Yes. Night guards for bruxism typically use Shore A 40–60. Sports mouthguards use Shore A 50–70. Whitening trays use Shore A 25–35. We match hardness to your application.
STEP, IGES, STL, or 2D drawing (PDF/DXF). We can also reverse-engineer from a physical sample with CMM measurement.
Typically 20–30 days for a standard single-cavity silicone mold. Multi-cavity tools for high-volume production: 35–45 days. First article samples provided for approval before production run.
Yes. We sign NDA before receiving any design files or proprietary information. Contact us via WhatsApp or email to start.