Multi-Material
Silicone Molding
Seamlessly integrate silicone with plastic, metal, and engineered substrates. From insert molding to overmolding, we deliver complex multi-material assemblies with industrial precision.
Composite Structures
Silicone + Plastic Integration
Combine the softness and sealing properties of silicone with the structural rigidity of engineering plastics. Ideal for pet product bodies, housings, and ergonomic grips.
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PP, PC, ABS, Nylon Compatibility Chemical bonding and mechanical interlock with major engineering plastics.
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Seamless Interface No visible seams, no delamination, bonded through primer or self-adhesive silicone.
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Food-Grade Certified All plastic substrates comply with FDA, LFGB, and BPA-free requirements.
Hybrid Engineering
Silicone + Metal Structures
Integrate silicone with stainless steel, aluminum, zinc alloy, and brass components. Perfect for grooming tools, feeder clips, collar hardware, and leash connectors.
Stainless Steel
304/316 grade, food-safe surfaces
Aluminum
Lightweight CNC & die-cast parts
Zinc Alloy
Decorative hardware components
Brass & Copper
Corrosion-resistant fittings
Process 01
Insert Molding
Pre-formed metal or plastic inserts are precisely positioned in the mold cavity before silicone injection, creating a permanent molecular bond.
Insert Preparation
Precision cleaning, surface treatment, and primer application on substrates.
Mold Placement
Automated or manual positioning with fixturing tolerance under 0.05mm.
Silicone Injection
Liquid or solid silicone injected under precision temperature and pressure.
Curing & QC
High-temperature vulcanization followed by pull-test and visual inspection.
Process 02
Overmolding
A soft silicone layer is molded over a rigid substrate to enhance grip, cushioning, waterproofing, or aesthetic appeal. Perfect for pet grooming handles, water bottle sleeves, and toy coatings.
Enhanced Ergonomics
Soft-touch surfaces for comfortable extended handling
Impact Protection
Shock absorption for drops and daily wear
Waterproof Sealing
IP67+ sealing for outdoor pet products
Common Overmolding Applications
Process 03
Mechanical Joining & Assembly
When chemical bonding is not required, we offer precision mechanical joining methods for modular designs.
Snap-Fit Joints
Designed with silicone's elasticity for repeatable assembly and disassembly without fasteners.
Interlock Grooves
Precision-engineered grooves with undercuts for leak-proof mechanical sealing.
Threaded Inserts
Brass or stainless threaded inserts for durable, reusable screw-connected assemblies.
Press-Fit Assembly
Interference-fit components for permanent, tool-free assembly on high-volume lines.
Ultrasonic Welding
Join plastic sub-components with silicone-compatible ultrasonic bonding techniques.
Adhesive Bonding
Food-safe silicone adhesives for permanent bonding on dissimilar material pairs.
Engineering Analysis
Material Compatibility Assessment
Not every substrate bonds equally with silicone. Our engineering team evaluates thermal, chemical, and mechanical compatibility at the design stage.
| Substrate Material | Bonding Method | Compatibility | Typical Use |
|---|---|---|---|
| PP (Polypropylene) | Primer + Overmold | Excellent | Pet bowls, feeders |
| PC (Polycarbonate) | Self-adhesive LSR | Excellent | Water bottles, lenses |
| ABS | Mechanical + Primer | Good | Toy housings |
| Nylon (PA66) | Chemical bonding | Excellent | High-stress parts |
| Stainless Steel | Primer + Vulcanization | Excellent | Grooming tools |
| Aluminum | Anodize + Primer | Good | Travel accessories |
| TPE / TPR | Mechanical only | Limited | Soft-grip components |
Tooling Excellence
Multi-Material Mold Design
Designing molds for multi-material parts requires advanced thermal management, precise cavity alignment, and venting strategies. Our in-house tooling team handles every detail.
Rotating platen and index molds for single-cycle multi-material production.
Precision locators and ejector-free cavities for consistent insert positioning.
For LSR with reduced material waste and precise injection control.
Design-for-Manufacturing review with mold flow simulation.
Finishing & Assembly
Assembly & Post-Processing
Comprehensive secondary operations under one roof--every finishing detail completed before packaging.
Silk Screen Printing
Durable multi-color logos
UV Treatment
Scratch-resistant coatings
Pad Printing
Precision on curved surfaces
Trimming & Deflashing
Clean edges, no burrs
Component Assembly
Multi-part integration
Laser Marking
Permanent serialization
Spray Coating
Matte, soft-touch finishes
Final Packaging
Retail-ready presentation
Quality Assurance
Quality & Bond Strength Verification
Multi-material parts face unique stress conditions--thermal cycling, mechanical pull, and chemical exposure. Every batch is validated through rigorous standardized testing before shipment.
Peel & Pull Test
ASTM D429Verifies silicone-to-substrate bond strength under tensile load until failure.
Thermal Cycling
-40°C to 200°C500+ cycles to confirm bond durability across extreme temperature swings.
Tear Resistance
ASTM D624Measures resistance of bonded silicone regions to tearing propagation.
Aging & UV
1000+ hrsAccelerated aging and UV exposure to validate long-term integrity.
Impact & Drop Test
Multi-axisSimulates real-world drops and impacts on finished multi-material assemblies.
Project Showcase
Multi-Material Product Cases
Real projects we've engineered and manufactured for global pet brands and private labels.
Ergonomic Grooming Brush
Overmolded silicone grip on rigid ABS frame with insert-molded stainless pins. 2M+ units shipped globally.
Pet Travel Water Bottle
PC bottle body with silicone drinking tray and stainless steel locking mechanism. IP67 waterproof.
Smart Slow-Feeder Base
Chemically bonded silicone pattern on reinforced nylon base. Chew-resistant and dishwasher safe.
Premium Pet Collar
Insert-molded zinc alloy D-ring and buckle on waterproof silicone band. 50kg+ pull strength.
Treat Dispensing Toy
Rigid PP core with soft silicone outer shell for safe chewing. Food-grade and dishwasher safe.
Portable Paw Washer
Three-material assembly: PC body, silicone bristles, TPE grip. Watertight twist-lock design.
Have a multi-material project in mind?
Share your drawings, 3D files, or concept sketches. Our engineering team will review feasibility, suggest material combinations, and provide a detailed quote within 48 hours.