Other Engineering Plastics Supplier China —LCP / PEI / PAR
Specialty engineering plastics for high-end electronics / 5G / SMT / LED applications. Direct sourcing from China tier-1 manufacturers.
Grades in This Category
| Grade | Full Name | Top Applications |
|---|
| [LCP](/products/lcp/) | Liquid Crystal Polymer | Electronic connector main grade (5G, SMT, LED) |
|---|---|---|
| [PEI](/products/pei/) | Polyetherimide (Ultem-grade) | High-temp medical / aerospace |
| [PAR](/products/par/) | Polyarylate | High-transparency / high-temp |
WhyLCP / PEI / PAR?
LCP (Liquid Crystal Polymer) is the mainstream choice for SMT electronic connectors in 5G / LED / USB-C / automotive electronics. PEI (Ultem-grade) is the top alternative to PEEK for medical / aerospace high-temp applications. PAR offers best transparency + high-temp.
| Property | LCP | LCPEI | PEI (Ultem) | PAR |
|---|
| **Continuous service temp** | 220°C | 220°C | 170°C | 175°C |
|---|---|---|---|---|
| **Tensile strength** | 200 MPa (glass-filled) | 200 MPa | 100 MPa | 70 MPa |
| **Dimensional stability** | Excellent | Excellent | Good | Good |
| **Flame rating (UL94**) | V-0 | V-0 | V-0 | V-2 |
| **Transparency** | Opaque | Opaque | Amber | Excellent (clear) |
| **Main use** | Connectors | High-end electronic | Medical / Aerospace | Optical / Beverage |
Applications by Industry
| Industry | Recommended Grades |
|---|
| **5G electronic connectors (SMT**) | LCP (glass-filled 30%) |
|---|---|
| **LED sockets** | LCP |
| **USB-C connectors** | LCP |
| **Automotive SMT sensors** | LCP / PEI |
| **Medical device housing** | PEI (Ultem-grade) |
| **Aerospace interior parts** | PEI / LCP |
| **High-temp optical components** | (set) |
| **LED lenses (high-temp**) | PAR |
Top Sellers (sub-group 1.4 OtherSpecialty)
LCP — Liquid Crystal Polymer
- Mainstream SMT connector grade
- High flow / thin wall / high dimensional stability
- Top choice for USB-C / 5G / automotive SMT sensors
- Available: Glass-filled 30% / 50% (most popular), Carbon-filled, Unfilled
PEI — Polyetherimide (Ultem-grade)
- High heat resistance (170°C continuous)
- Top alternative to PEEK for medical / aerospace
- Available: Natural (amber transparent), Glass-filled
PAR — Polyarylate
- Best transparency + high-temp (175°C)
- High-clarity optical components
- Available: Natural, Filled variants
Contact — 24h Quote
Daishuming Lingli (代书命) — Founder & Sales Director
📱 +86-13922534393 |📧 [email protected]
*© 2025-2026 Huizhou Lingli Trading Co., Ltd. —Specialty Engineering Plastics International Trading from China*
Grades in Other Engineering Plastics
LCP
**LCP** (Liquid Crystal Polymer) is the **mainstream SMT electronic connector ma...
PEI
**PEI** (Polyetherimide, Ultem-grade equivalent) is a **high-temp amorphous ther...
PAR
**PAR** (Polyarylate, 聚芳酯) is a **high-temp transparent thermoplastic** used in ...
Need Other Engineering Plastics quote? 24h response.
Send: grade + quantity + application + destination. Free TDS / MSDS / RoHS / REACH.
Request Quote