Autoparts and Electric Vehicle Parts Solution

Custom Silicone Components and Plastic Housing Solutions for Automotive and Electric Vehicle Parts Accessories

In the rapidly evolving automotive and electric vehicle (EV) sectors, customized silicone parts (such as seals, gaskets, O-rings, thermal pads, hoses, vibration dampers, and soft-touch grips) combined with precision plastic shells/housings (for chargers, battery enclosures, sensor covers, EVSE connectors, power distribution boxes, dashboard accessories, LED light housings, and antenna modules) are critical for performance, safety, reliability, and cost-efficiency. These solutions address unique demands like extreme temperature cycling (-60°C to +230°C+), IP67/IP68 waterproofing, vibration resistance, EMI shielding, flame retardancy (UL94 V-0/V-1), thermal management for batteries, chemical resistance to coolants/electrolytes, and long-term compression set performance under 20+ years of service life.

The Silicone Components and Plastic Housing Solutions Product Case

Silicone Protector for BYD

This is BYD 2025 Seagull screen silicone protector for car displays, safeguarding your screen.

Li Auto L6 2025 Pro Silicone Parts

The Li Auto L6 2025 Pro silicone storage box cover provides better protection for the storage box while driving and when storing items.

New Energy Vehicle Charging Plastic Parts

Customized and diversified plastic components for charging new energy vehicles

Advanced Silicone Parts Solutions (LSR & High-Performance Elastomers)

Liquid Silicone Rubber (LSR) injection molding is the gold standard for high-volume, high-precision automotive/EV parts. Unlike traditional compression molding or peroxide-cured silicone, LSR offers:· Superior flow for thin-wall, complex geometries (wall thickness down to 0.5mm).· Excellent tear strength, elongation (>300-800%), fatigue resistance, and ultra-low compression set (<10% after aging).· Inherent resistance to UV, ozone, weathering, automotive fluids (oil, fuel, glycol), and dielectric strength for high-voltage isolation.· Custom formulations: medical/food-grade, flame-retardant, thermally conductive (1-3 W/m·K for battery TIM pads), electrically conductive (nickel-graphite filled for EMI gaskets), fluorosilicone (FVMQ) for aggressive chemicals, and low-outgassing grades.

Key EV Applications:

Battery pack module-to-module gaskets and enclosure seals (prevent thermal runaway by restricting oxygen/moisture ingress, achieving IP68 + thermal cycling 5000+ cycles).· Thermal interface materials (gap fillers, soft pads) for cell-to-cooling plate heat transfer.· High-voltage connector seals, busbar insulation, and potting compounds.· Charger plug boots, O-rings for EVSE (UL 2202 compliant), and vibration-isolating mounts that reduce NVH.

Overmolding & 2K/Multi-Shot Integration:

Overmolding & 2K/Multi-Shot Integration: LSR is directly bonded to plastic substrates (PC, PC/ABS, PA66, PBT) or metal in one automated cycle. This creates permanent, leak-proof assemblies eliminating secondary gaskets, adhesives, or assembly labor—saving 30-50% on total cost while ensuring seal integrity under shock/vibration. Robotic insert placement + LSR injection delivers tolerances of ±0.05mm and billions of defect-free parts.

Precision Plastic Shell & Housing Solutions

High-volume injection molding (including gas-assisted, thin-wall, and insert molding) for rigid housings:

Materials

Flame-retardant PC/ABS, PC, PA6/PA66 (GF15-45% for stiffness), PBT, PPS for high-temp battery boxes, UV-stabilized ASA for exteriors, conductive compounds for EMI, and recycled/bio-based options.

EV-Specific

Charger station enclosures, portable charger housings, battery management system (BMS) covers, sensor radar housings (radar-transparent), and lightweight powertrain components that improve range by 2-5%.

Features

Snap-fits, living hinges, threaded inserts, textured surfaces (soft-touch, leather-grain), integrated clip features, vents with membranes, and hybrid overmolded LSR gaskets.

Full Turnkey Customization Process

Design & Engineering Support

DFMEA, FEA (thermal, vibration, sealing simulation), CAD (Catia/SolidWorks), material selection, and rapid prototyping (SLA/FDM tools + vacuum-cast LSR in 3-5 days; 3D-printed silicone in 24-48 hrs).

Production

From 100 pcs (bridge tooling) to 10M+ pcs/year on fully automated LSR presses (100-500 ton) and hybrid 2K machines. Cleanroom (Class 8) options available.

Quality & Compliance

IATF 16949:2016, ISO 9001, PPAP, FAI, material certs (UL, RoHS, REACH, SVHC, FMVSS 302), 100% automated vision inspection, and traceability.

Tooling

In-house P20/H13 steel molds (single/multi-cavity, hot runner, 2K rotary), aluminum for prototypes (500-5k shots).

Secondary Operations

Post-curing, plasma treatment for adhesion, laser marking/etching, pad printing, assembly, functional testing (leak, thermal shock, salt spray, EMC).

Competitive Advantages & Trends

Cost & Speed

Conventional enzyme production is mainly produced by hand, hand-sliced, hand-fermentation, the company every step of the process are used self-developed technology and equipment to automate production. Moreover, the conventional enzyme production have adopted a fermentation technology, enzyme often taste discomfort, sour and other issues, I produced using a variety of enzymes, probiotics composite grade fermentation technology, fermentation at different times with different strains, and two or three times through fermentation, enzymes such pure taste, streptozotocin balanced nutrients.
Sustainability

Conventional enzyme production is mainly produced by hand, hand-sliced, hand-fermentation, the company every step of the process are used self-developed technology and equipment to automate production. Moreover, the conventional enzyme production have adopted a fermentation technology, enzyme often taste discomfort, sour and other issues, I produced using a variety of enzymes, probiotics composite grade fermentation technology, fermentation at different times with different strains, and two or three times through fermentation, enzymes such pure taste, streptozotocin balanced nutrients.
Future-Proof

Conventional enzyme production is mainly produced by hand, hand-sliced, hand-fermentation, the company every step of the process are used self-developed technology and equipment to automate production.

Real-World Examples:

· Overmolded LSR gasket on PC/ABS EV charger housing → reduced assembly from 3 steps to 1, passed 10,000 mating cycles + IP68.· Custom thermally conductive silicone pads for 2170/4680 cell modules → improved cooling efficiency by 15-25%.· Flame-retardant silicone sponge enclosures for Level 2 chargers → UL 50E/UL 94 V-0 compliant, outdoor durability 15+ years.This integrated silicone + plastic solution delivers lighter, safer, more reliable accessories that enhance EV range, reduce warranty claims, and accelerate time-to-market. Whether you're an OEM, Tier 1, or aftermarket supplier, we provide end-to-end support from concept to mass production. Contact us today for a free DFM review and quote!