Liquid Silicone Rubber (LSR) • High-Consistency Rubber (HCR) • Compression & Transfer Molding
We love the smell of fresh silicone in the morning.
There’s something uniquely satisfying about watching liquid silicone or solid rubber transform under heat and pressure into soft-touch keypads, airtight medical seals, baby bottle nipples, or vibration-dampening automotive mounts. For over 20 years we’ve been that quiet, reliable partner who turns your rubber ideas into parts that feel perfect in the hand and last for decades.
What is vulcanization molding?
Vulcanization is the process of converting raw rubber or liquid silicone into a strong, elastic, temperature-resistant material through heat and pressure (usually 160–200 °C ) in a closed mold.
We run three main methods every day:
- **Liquid Silicone Rubber (LSR) injection** – 2-component platinum-cure silicone, baby-safe, medical-grade, crystal-clear or colored
- **High-Consistency Rubber (HCR) compression & transfer** – EPDM, NBR, Viton, natural rubber, solid silicone for gaskets, mounts, O-rings
- **Rubber-to-plastic or rubber-to-metal overmolding** – perfect bonding in one shot
Why our clients choose vulcanization molding with us
| Why it matters to you | What we actually deliver every week |
|-----------------------------------------------------|---------------------------------------------------------------------|
| Baby products & medical devices need FDA / ISO 10993 | Full cleanroom ISO 8, platinum-cure LSR, USP Class VI certified |
| Automotive & EV need extreme temperature & weather | EPDM, FKM (Viton), and silicone that survive –40 °C to +220 °C |
| You need soft-touch + plastic in one part | True rubber-to-plastic overmolding on the same press (no secondary bonding) |
| Tight tolerances on seals & gaskets | ±0.02 mm on LSR parts, zero flash, automatic demolding |
| Food-contact seals & kitchenware | FDA & LFGB silicone, dishwasher-safe, odorless |
Our vulcanization capabilities
- Materials we run daily: platinum LSR, medical silicone, food-grade silicone, EPDM, NBR, HNBR, FKM, ACM, natural rubber
- Cleanroom ISO 8 (100,000 class) for medical & baby products
- Automatic dosing + color pumping for LSR (no manual mixing)
- Cryogenic deflashing + optical inspection for zero flash
- In-house hardness testing (Shore A 5–90), compression set, tear strength
How to start a rubber / LSR project with us
1. Send us your 3D file, 2D drawing, or physical sample
2. We quote mold + unit price within 2–5 days
3. You pay 50 % mold deposit → mold built in 20–45 days
4. T1 samples → you approve → pay remaining 50 % mold + first batch
5. 50% production deposit→Production starts immediately (typical lead time 7–20 days) →pay remaining 50% production→shippment