Table of Contents
- Customized Liquid Silicone Encapsulation Parts – OEM Factory Direct Supply
- Why Global Buyers Choose Yingtai for LSR Encapsulation Parts
- 3 Critical Pain Points in Sourcing LSR Encapsulation Parts
- Yingtai’s One-Stop LSR Encapsulation Solution
- Competitive Comparison: Yingtai vs. Traditional Suppliers
- Technical Specifications & Capabilities
- Industry Applications & Case Studies
- Social Proof: Certifications, Clients & Testimonials
- FAQs About Customized LSR Encapsulation Parts
- Real Customer Reviews
- Ready to Start Your LSR Encapsulation Project?
- Meet the Expert Behind This Guide
Customized Liquid Silicone Encapsulation Parts – OEM Factory Direct Supply
Reduce procurement costs by 30%+ with Guangdong Yingtai’s 20+ years of LSR molding expertise. Get medical-grade, IP68 waterproof encapsulation parts in 15-30 days with free DFM analysis.
Trusted by 500+ global brands in new energy, electronics, and medical devices. ISO 13485, FDA, RoHS, REACH compliant.
Why Global Buyers Choose Yingtai for LSR Encapsulation Parts
As a top 3 LSR molding factory in China, Yingtai combines German engineering precision with Dongguan’s cost efficiency. Our 35,000 m² smart factory houses:
- 55+ LSR injection machines (50T-200T, with ±0.01mm tolerance)
- 80+ plastic injection machines for overmolding (ABS+LSR, PC+LSR)
- 20+ hydraulic presses for solid silicone compression molding
- Class 10,000 cleanroom for medical-grade parts (ISO 13485)
- In-house mold shop with 30+ CNC/EDM machines (mold lifespan: 1M+ shots)
💡 Pro Tip: Our AI-powered molding simulation (Moldex3D) reduces trial runs by 60%, cutting development time from months to weeks.
3 Critical Pain Points in Sourcing LSR Encapsulation Parts
❌ Pain Point #1: High Tooling Costs ($10K–$50K+)
Problem: Traditional suppliers quote $15K–$30K for LSR molds, with 8–12 week lead times. For startups, this is prohibitive.
Yingtai’s Fix: We offer:
- Modular mold designs (reusable cores/cavities) – 40% cost savings
- Aluminum molds for prototyping ($3K–$8K, 3-week delivery)
- Mold financing (pay over 12 months for qualified projects)
❌ Pain Point #2: Quality Inconsistency (Scrap Rates >5%)
Problem: Poor mold ventilation, improper curing, or subpar LSR material causes flash, bubbles, or delamination. Industry average scrap rate: 3–7%.
Yingtai’s Fix:
- Vacuum-assisted molding (eliminates 99% of bubbles)
- 100% automated optical inspection (Keyence IV-Series)
- Dow Corning/Momentive LSR (medical/food-grade, 0.5% scrap rate)
📌 Data Source: Grand View Research (2023) – LSR market demands 99.9% defect-free rates for medical/electronics.
❌ Pain Point #3: Slow Delivery (12–16 Weeks from RFQ to Mass Production)
Problem: Most suppliers take 4–6 weeks for mold making + 8–10 weeks for production.
Yingtai’s Fix:
- 24h DFM feedback (Autodesk Moldflow + SolidsWorks)
- Mold production in 10–15 days (50+ mold technicians)
- Mass production in 3–5 days (24/7 operation, 1M parts/month capacity)
- DHL/FedEx partnership for 3–5 day shipping to US/EU
Yingtai’s One-Stop LSR Encapsulation Solution
From concept to delivery, we handle everything in-house:
📐 Step 1: Design & DFM
Free mold flow analysis to optimize part design for LSR.
🏭 Step 2: Mold Making
Precision CNC/EDM molds with ±0.005mm tolerance.
🔥 Step 3: LSR Molding
Automated injection with 99.5% yield rate.
🧪 Step 4: Testing
IP68, UL94, biocompatibility (ISO 10993) testing.
🚚 Step 5: Shipping
DHL/FedEx for urgent orders; sea freight for bulk.
Yingtai’s 35,000 m² smart factory in Dongguan, equipped with 55 LSR injection machines.
Competitive Comparison: Yingtai vs. Traditional Suppliers
| Criteria | Yingtai (China) | US/EU Suppliers | Other China Factories |
|---|---|---|---|
| LSR Material Grade | Dow Corning/Momentive (Medical/Food) | Dow Corning (Premium) | Local Brands (Mixed Quality) |
| Mold Lifespan | 1M–5M shots | 1M–3M shots | 300K–500K shots |
| Lead Time (Mold + Production) | 3–4 weeks | 8–12 weeks | 6–8 weeks |
| Unit Price (10K+ MOQ) | $0.10–$5.00 | $2.00–$15.00 | $0.08–$3.00 |
| Scrap Rate | 0.5% | 1–3% | 5–10% |
| Certifications | ISO 9001, ISO 13485, FDA, RoHS, REACH, UL | ISO 9001, FDA, UL | ISO 9001 (Basic) |
💡 Why Yingtai? We deliver US/EU quality at China prices with 3x faster lead times.
Technical Specifications & Capabilities
📋 Material Options
| Material Type | Hardness (Shore A) | Temperature Range | Certifications | Typical Applications |
|---|---|---|---|---|
| LSR-60 | 60 ±5 | -60°C to 200°C | FDA, RoHS, REACH | Baby products, medical devices |
| LSR-70 (General) | 70 ±5 | -50°C to 220°C | UL94 HB, RoHS | Electronics encapsulation, seals |
| LSR-80 (High Strength) | 80 ±5 | -40°C to 250°C | UL94 V-0, ISO 10993 | Automotive connectors, industrial parts |
| LSR-50 (Soft) | 50 ±5 | -70°C to 180°C | FDA, LFGB | Wearable devices, flexible seals |
| Fluorosilicone LSR | 60–70 | -60°C to 230°C | UL, REACH | Fuel-resistant seals, aerospace |
📐 Molding Capabilities
| Parameter | LSR Injection | Overmolding (Plastic + LSR) | Compression Molding |
|---|---|---|---|
| Part Size | 0.1g–1000g | 0.5g–500g | 1g–2000g |
| Tolerance | ±0.01mm | ±0.02mm | ±0.05mm |
| Surface Finish | RA 0.05–0.8μm | RA 0.1–1.0μm | RA 0.2–1.6μm |
| Color Options | Pantone matched, transparent, glow-in-dark | Two-tone (LSR + Plastic) | Solid colors, translucent |
| Production Volume | 1K–1M+/month | 5K–500K+/month | 100–100K+/month |
🔬 Testing & Compliance
- Electrical: Dielectric strength (15 kV/mm), insulation resistance (>10¹² Ω)
- Mechanical: Tensile strength (6–12 MPa), elongation (200–800%)
- Environmental: UV resistance, ozone resistance, salt spray (500h+)
- Biocompatibility: ISO 10993-5 (cytotoxicity), USP Class VI
- Flammability: UL94 HB/V-0
Industry Applications & Case Studies
🚗 Automotive & New Energy
Use Case: EV battery pack seals, charging port gaskets, sensor encapsulation
Client Example: Supplied 2M+ LSR seals/year for a top-5 EV battery manufacturer (confidential).
- Material: LSR-70 (UL94 V-0, -40°C to 150°C)
- Key Feature: IP68 waterproof, oil-resistant
- Cost Savings: 25% vs. traditional rubber
📱 Consumer Electronics
Use Case: Smartphone camera seals, wearable device encapsulation, waterproof connectors
Client Example: Xiaomi supplier for 5M+ LSR parts/year (2020–2024).
- Material: Transparent LSR-60 (90% light transmittance)
- Key Feature: 0.05mm ultra-thin walls, high clarity
- Certification: RoHS, REACH, Halogen-free
⚕️ Medical & Healthcare
Use Case: Surgical tool handles, drug delivery device seals, wearable health monitors
Client Example: US medical device OEM (NDA-protected) – 100K+ Class II medical parts/month.
- Material: Medical-grade LSR (USP Class VI, ISO 10993)
- Key Feature: Biocompatible, autoclavable (121°C)
- Cleanroom: ISO 8 (Class 10,000)
🏠 Industrial & Appliances
Use Case: Home appliance seals (washing machines, dishwashers), industrial sensor protection
Client Example: Haier supplier for 3M+ LSR gaskets/year.
- Material: LSR-80 (high tear strength)
- Key Feature: 10-year lifespan, UV-resistant
- Certification: FDA (food-safe), UL
📌 Market Insight: The global LSR market is projected to grow at a CAGR of 8.5% (2023–2030), driven by demand in automotive, electronics, and medical sectors. Source: Grand View Research
FAQs About Customized LSR Encapsulation Parts
❓ Q: What’s the minimum order quantity (MOQ) for LSR encapsulation parts?
✅ A: No MOQ for prototyping (aluminum molds). For mass production (steel molds), MOQ starts at 1,000–5,000 units, depending on part size.
❓ Q: How do you ensure IP protection for custom designs?
✅ A: All designs are covered under NDA + China Patent Law. We assign a dedicated project manager and restrict access to your files. 0 IP leaks in 20+ years.
❓ Q: Can you handle multi-material overmolding (e.g., PC + LSR)?
✅ A: Yes! We specialize in 2K/3K overmolding with:
- Plastic substrates: ABS, PC, PA66, PPS
- Metal inserts: Aluminum, stainless steel
- Bonding strength: >15 N/mm² (tested per ASTM D429)
❓ Q: What’s your pricing model?
✅ A: Our pricing is transparent and competitive:
| Service | Pricing | Lead Time |
|---|---|---|
| Prototyping (Aluminum Mold) | $3K–$8K (mold) + $0.5–$5/part | 3–4 weeks |
| Mass Production (Steel Mold) | $8K–$30K (mold) + $0.1–$3/part | 4–6 weeks (mold) + 3–5 days (production) |
| DFM Analysis | Free | 24–48 hours |
💡 Note: Prices vary based on part complexity, material, and volume. Contact us for a tailored quote.
❓ Q: Do you offer sample parts before mass production?
✅ A: Yes! We provide:
- 3D-printed samples (for design validation) – $50–$200, 3–5 days
- T1 Samples (from prototype mold) – 5–10 days, 10–50 pcs
- PPAP Samples (for automotive/medical) – Full documentation included
❓ Q: What shipping options do you offer?
✅ A:
| Method | Lead Time | Cost (Example: 10K Parts, 50kg) | Best For |
|---|---|---|---|
| DHL/FedEx Express | 3–5 days | $800–$1,200 | Urgent orders |
| Air Freight | 7–10 days | $400–$600 | Medium-sized orders |
| Sea Freight (FCL/LCL) | 25–35 days | $200–$400 | Bulk orders (>500kg) |
❓ Q: What after-sales support do you provide?
✅ A:
- 12-month warranty on all parts (excluding misuse)
- Free replacement for defective parts (>0.5% defect rate)
- On-site support (for major clients, travel costs covered)
- Lifetime mold maintenance (re-polishing, repairs)
❓ Q: Which industries do you serve?
✅ A: We specialize in:
- Automotive: EV battery seals, charging ports, sensor encapsulation
- Electronics: Smartphone components, wearables, connectors
- Medical: Surgical tools, drug delivery devices, wearables
- Industrial: Appliance seals, sensor protection, gaskets
- Consumer Goods: Baby products, kitchenware, toys
📌 Note: We do not produce military or aerospace parts (ITAR/EAR restrictions).
Real Customer Reviews
"Yingtai’s LSR encapsulation parts for our EV charging systems have zero leakage in 2+ years of field use. Their vacuum molding eliminated the bubble issues we had with previous suppliers. Delivered 30% under budget."
"As a startup, we needed a supplier who could scale with us. Yingtai’s aluminum mold program let us test our design for $6K, then transition to steel molds seamlessly. Their ISO 13485 certification was crucial for our FDA submission."
"We switched from compression molding to LSR injection for our smartphone camera seals. Yingtai reduced our scrap rate from 8% to 0.2% and cut lead time from 12 to 4 weeks. Their Moldex3D simulation caught design flaws early, saving us $50K in rework."
"Yingtai’s overmolding expertise (PA66 + LSR) solved our bonding issues with competitor parts. Their in-house testing lab provided UL94 V-0 and IP68 certifications in half the time of our previous supplier. Highly recommend for European OEMs."
"We needed food-grade LSR seals for our new line of blenders. Yingtai’s FDA + LFGB certified LSR passed all our tests. Their DHL shipping got samples to us in 4 days. Now they’re our sole supplier for 200K units/year."
Real Conversations with Our Team
Ready to Start Your LSR Encapsulation Project?
✅ Free DFM analysis in 24h
✅ No MOQ for prototyping
✅ ISO 13485, FDA, RoHS compliant
✅ 30-day money-back guarantee on first order
📞 Limited-Time Offer: 10% discount for orders placed in June 2026.
📧 Email: zmm@yingtai168.com | lh@yingtai168.com
📍 Address: No. 359 Chang'an Bubugao Road, Chang'an Town, Dongguan City, Guangdong Province, China
Meet the Expert Behind This Guide
Dr. Li Wei
Senior LSR Molding Engineer | 15+ Years in Silicone Manufacturing
Dr. Li holds a Ph.D. in Polymer Engineering from Tsinghua University and has led 500+ LSR projects for Fortune 500 clients. His expertise includes:
- Precision LSR injection molding (±0.01mm tolerance)
- Medical-grade silicone compliance (ISO 13485, FDA)
- Overmolding (Plastic + LSR, Metal + LSR)
- AI-driven molding optimization (Moldex3D, Moldflow)
📌 Published in: Journal of Applied Polymer Science, MDPI Polymers
💬 Ask Dr. Li a Question: lh@yingtai168.com
"LSR encapsulation isn’t just about molding—it’s about engineering reliability into every part. At Yingtai, we combine German precision with Chinese efficiency to deliver parts that exceed expectations." – Dr. Li Wei
Guangdong Yingtai High Precision Technology Co., Ltd.
© 2026 | All Rights Reserved | www.ytplasticmold.com
Social Proof: Certifications, Clients & Testimonials
🏆 Certifications
🤝 Trusted by Global Brands
💬 Client Testimonials
⭐⭐⭐⭐⭐ | Michael T., Purchasing Manager at US Medical Device Co.
"Yingtai delivered our Class II medical LSR parts with 0.3% defect rate– unheard of in our industry. Their ISO 13485 audit passed with zero non-conformities. Lead time was 4 weeks vs. 12 weeks from our previous supplier."
⭐⭐⭐⭐⭐ | Sarah L., Product Engineer at European Automotive Supplier
"We switched from compression molding to Yingtai’s LSR injection for EV battery seals. Result: 40% cost reduction, 200% improvement in part consistency, and IP68 certification on first try."
⭐⭐⭐⭐⭐ | David K., CEO at Wearable Tech Startup
"As a startup, we couldn’t afford $20K tooling. Yingtai’s aluminum mold program let us validate our design for $5K, then scale to steel molds. Now we’re at 50K units/month."