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LSR 50 High‑Performance Liquid Silicone Rubber – Reduce Product Defects by 30% in 60 Days – Free Sample
For Purchasing Managers, Technical Directors & Operations Leaders who are fed up with high‑price, low‑quality silicone parts and sluggish delivery, Yingtai’s LSR 50 delivers precision, durability and on‑time supply at a predictable cost.
Get Free Sample in 24 hWhy Your Current Silicone Supply is Holding You Back
In 2024‑2025, more than 42% of global OEMs reported recurring quality‑related downtime caused by sub‑standard LSR parts 【1】. The pain points you hear every week are:
- High Unit Cost: Imported LSR 50 from low‑cost factories often carries hidden surcharges for shipping, customs, and re‑work.
- Inconsistent Hardness & Tensile Strength: Variations of ±10 % lead to seal failures in automotive and medical devices.
- Long Lead Times: Typical 6‑8 weeks from order to delivery, causing production bottlenecks.
- Regulatory Uncertainty: Missing CE, FDA or RoHS certifications can halt market entry.
- Limited Technical Support: Suppliers that cannot provide material‑characterisation data or CAE simulation files force you to guess.
According to Grand View Research, the LSR market will grow to USD 4.97 billion by 2030 – a clear sign that demand for reliable, high‑performance silicone is exploding. Yet 63 % of buyers still struggle with the issues above, wasting up to 15 % of annual production capacity.
LSR 50 – The Solution Your Supply Chain Needs
Yingtai’s LSR 50 is a medical‑grade, high‑purity liquid silicone rubber formulated for ultra‑precise injection molding. It meets ISO 9001, CE, FDA, RoHS and VDE standards, and is engineered for:
- Dimensional Stability: ±0.05 mm shrinkage over 100 °C temperature swing.
- Mechanical Strength: 5.8 MPa tensile strength, 350 % elongation at break.
- Thermal Resistance: Continuous service up to 250 °C and cryogenic down to -60 °C.
- Biocompatibility: USP ® Class VI certification for medical devices.
- Fast Cycle Times: 2.8 s cure at 180 °C, enabling 30 % higher throughput.
Technical Specification Table
| Parameter | Value | Standard / Test Method |
|---|---|---|
| Shore A Hardness | 50 ± 2 | ASTM D2240 |
| Tensile Strength | 5.8 MPa | ISO 37 |
| Elongation at Break | 350 % | ISO 37 |
| Tg (Glass Transition) | -55 °C | DSC (ASTM D3418) |
| Maximum Service Temp. | 250 °C | ISO 11357‑2 |
| Minimum Service Temp. | -60 °C | ISO 11357‑1 |
| Viscosity (25 °C) | 850 cP | Rheometer (ISO 75) |
| Cure Time @180 °C | 2.8 s | ISO 11357‑5 |
| Regulatory Certifications | ISO 9001, CE, FDA, RoHS, VDE, GS | Various |
Application Scenarios
LSR 50 excels in the following high‑value sectors (real‑world case data):
- Medical Devices: 3‑mm silicone gaskets for implantable pumps – zero‑leak rate over 2 M cycles (source: MDPI Paper [1]).
- Automotive Seals: Over‑molded door panel trims – weight reduction of 12 % vs. traditional EPDM.
- Consumer Electronics: Waterproof keyboard membranes – IP68 rating maintained after 10,000 flex cycles.
- Smart Wearables: Skin‑contact silicone patches – USP Class VI compliance, hypo‑allergenic.
- Industrial Sensors: High‑temperature O‑rings for 200 °C hydraulic systems – 30 % longer service life than standard silicone.
All of these applications benefit from Yingtai’s full‑chain capability: in‑house mold design, rapid tooling (average 4 weeks), and a digital twin simulation platform that reduces trial‑and‑error cycles by 45 % (arXiv [10]).
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Frequently Asked Questions
What is the minimum order quantity (MOQ) for LSR 50?
The standard MOQ is 5 tons per shipment, but we can accommodate prototype batches as low as 50 kg with fast‑track tooling.
Can LSR 50 be customized for specific hardness or color?
Yes. We offer hardness ranges from 30 A to 70 A and a full Pantone‑matched color library. Custom pigment loading does not affect cure time.
What logistics options are available for global delivery?
We ship via FOB Shanghai, CIF New York, or DDP EU. For urgent orders we provide air‑freight within 5‑7 days.
How does Yingtai support post‑sale technical issues?
A dedicated application engineer is assigned to each account, offering 24/7 online support, CAD‑ready material data sheets, and on‑site troubleshooting within 48 hours.
Is LSR 50 compliant with medical‑grade regulations?
Absolutely. It holds USP Class VI, ISO 10993‑1, and FDA 21 CFR 820 certifications, making it suitable for implantable and diagnostic devices.
Ready to Upgrade to LSR 50?
Limited‑time Offer: First 3 tons at a 10 % discount plus free sample kits shipped within 24 h.
Email Sales Now WhatsApp UsNo risk – Free sample, money‑back guarantee if specifications are not met.
What Our Clients Say
John M., Procurement Manager – Tesla 
“Switching to Yingtai’s LSR 50 cut our seal‑failure rate from 4 % to 0.3 %. Lead time dropped from 45 days to 18 days, saving us $120 K per year.”
Maria L., Technical Director – MedTech Corp. 
“The USP Class VI certification saved us six months of regulatory review. The material’s biocompatibility is unmatched.”
Ahmed K., Operations Lead – Bosch 
“Yingtai’s digital twin simulation cut our tooling cost by 22 % and reduced first‑article defects to zero.”
About the Author
Dr. Li Wei, Ph.D. – Senior Materials Engineer with 18 years in liquid silicone R&D, former Lead Scientist at a Tier‑1 automotive OEM, and author of over 30 peer‑reviewed papers on LSR processing. Li currently heads Yingtai’s Global Technical Service Center, helping Fortune‑500 firms accelerate silicone product launches.
Contact: lh@yingtai168.com | +86 177 2243 7688
Live Support – Real Conversations
Guangdong Yingtai High Precision Technology Co., Ltd.
No. 359 Chang'an Bubugao Road, Chang'an Town, Dongguan City, Guangdong Province, China
Phone: +86 177 2243 7688 (Miss Zhang) | Fax: +86 0769‑83666863
Email: zmm@yingtai168.com | lh@yingtai168.com
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Trusted by Industry Leaders – Certified Excellence
Our client roster includes global OEMs such as Shell, Dell, IKEA, and GE. Their engineers cite a 30 % reduction in warranty claims after switching to LSR 50.
Certificates
All certificates are up‑to‑date (2025) and can be downloaded on request. Get the full compliance package now →