Liquid Silicone for
Baby-Safe Precision.
Platinum-cured LSR injection molding delivers ultra-pure, odorless, and bio-compatible components ideal for pacifiers, bottle nipples, and feeding essentials -- produced at scale with sub-millimeter accuracy.
LSR Injection
Molding System
Two-component A/B silicone metered and injected at precision ratios.
mm Tolerance
01 -- Applications
Products & Structures Suited for LSR.
Liquid silicone excels where softness, hygiene, and intricate geometry matter -- the hallmark requirements of baby products.
Pacifiers & Nipples
Soft, thin-wall structures requiring consistent flow curves and medical-grade purity.
Feeding Cups & Bottles
Collapsible bodies, suction bases and spill-proof valves with uniform wall thickness.
Teethers & Soothers
Multi-texture surfaces, undercuts and translucent effects all moldable in one shot.
Bibs & Placemats
Large flexible parts needing even curing and vibrant food-safe coloration.
Thin Wall
0.3 - 0.5 mm
Shore Hardness
20A - 80A
Temperature
-50°C → 220°C
02 -- Workflow
The Liquid Injection Molding Flow.
A closed-loop automated process ensures each shot meets exacting standards from raw material to finished component.
Material Metering
Component A & B dosed 1:1 by pumping system.
Static Mixing
Homogenized through static mixer under cooled condition.
Precision Injection
Cold runner delivers LSR into heated cavity under servo control.
Thermal Vulcanization
Platinum catalyst cures at 170-200°C in seconds.
Robotic Demolding
Automated pickup, inspection, and packaging -- zero human contact.
Cycle Time
30-60 sec
03 -- Automation
Automated. Precise. Repeatable.
Our LSR production cells combine servo-driven injection machines, cold-runner systems, and six-axis robots to guarantee micron-level consistency across millions of shots.
Flashless Molding
Cold-runner tooling eliminates waste gate trimming -- direct-to-package parts.
Closed-Loop Control
Real-time pressure, temperature, and position feedback ensures stability.
Robotic Handling
Non-contact extraction protects soft LSR parts and prevents contamination.
04 -- Tooling
Mold Precision Requirements.
LSR flows like water. Molds must be engineered with far tighter tolerances than conventional silicone or thermoplastic tooling.
±0.01mm
Parting Line Precision
Sealing surfaces polished and matched to prevent flash on low-viscosity LSR.
HRC 52+
Hardened Steel Cavity
Through-hardened S136 / NAK80 steel for 1M+ shot longevity.
Ra 0.1
Mirror Polish Finish
Optical-grade polish for crystal clear or glossy baby components.
Cold Runner System
Independently temperature-controlled gates keep LSR inert until injection.
Micro Venting
0.005 mm vents prevent entrapped air and surface defects.
Balanced Hot Half
Uniform heating ±2°C across all cavities for consistent cure.
05 -- Multi-Material
LSR Overmolding Applications.
Combine LSR with rigid plastics or metals in a single automated cycle -- producing composite parts with chemical bonding and no secondary assembly.
LSR + Rigid Plastic
PP, PA, PC and PBT substrates bonded via self-adhesive LSR grades.
- ✦ Bottle handles with soft grip
- ✦ Hard-shell sippy cups
- ✦ Composite rattles
LSR + Metal Insert
Stainless steel inserts bonded for structural strength or sealing.
- ✦ Food-grade spoons
- ✦ Training chopsticks
- ✦ Reinforced grips
2K & 3K Molding
Single-cycle two-shot molding on rotary platen machines -- no manual transfer required.
06 -- DFM
Design Considerations for LSR.
Early-stage DFM guidance from our engineers prevents costly mold revisions and ensures manufacturability from the first prototype.
Wall Thickness Uniformity
Keep thickness variation within 50% to avoid shrinkage and uneven curing.
Undercuts & Flex
LSR elasticity permits deeper undercuts than hard plastics -- simpler tooling.
Gate Location
Position gates away from visible surfaces and functional sealing zones.
Shrinkage Allowance
Typical 2.5-3% shrink; compensated in CAD before mold cutting.
Surface Texture
Matte, gloss, or anti-slip textures achievable directly via EDM/etching.
Color & Translucency
Pantone-matched food-grade pigments, from transparent to pastel.
07 -- Quality
In-Process Quality Control.
Every LSR production run is governed by ISO 9001 SOPs, with inline inspection stations and periodic lab verification.
FDA
Food contact approved
LFGB
EU food safety
ISO 9001
Quality system
BPA-Free
Non-toxic & odorless
08 -- Capacity
Output & Project Investment.
Dedicated LSR cells deliver stable high-volume output; our engineering team tailors investment plans for every project scale.
32+
LSR Injection Machines
10M+
Annual Capacity (pcs)
24/7
Automated Production
15yr
LSR Experience
Prototype
Rapid Sample
10-20 days to functional samples via soft tooling or 3D-printed cavity.
Tooling
Mold Development
25-40 days for multi-cavity production molds with cold runner.
Mass Production
Scale Delivery
MOQ 5,000 pcs; weekly shipment capability on repeat orders.
09 -- Get Started
Submit Your Liquid Silicone Project.
Share your product idea, 2D/3D files, or reference samples. Our engineers will respond with DFM feedback and a tailored quotation within 24 hours.