描述
PLEXIMID TT50 High Heat Optical Grade PMMI AMECA Listed
Material: PMMI
Vicat: 150°C
HDT (0.45 MPa): 146°C
Refractive Index: 1.53
Packing: 25kg bag
PLEXIMID TT50 is a highly heat distortion-resistant poly(n-methyl methacrylamide) (PMMI) molding compound designed for demanding optical applications requiring exceptional thermal stability. With a Vicat softening temperature of 150°C (B/50) and heat deflection temperature of 146°C at 0.45 MPa, this material outperforms standard PMMA grades by a wide margin. It offers high rigidity with a tensile modulus of 4000 MPa, excellent optical clarity with 91% light transmission, and a high refractive index of 1.53. AMECA listed, PLEXIMID TT50 is approved for automotive optical applications requiring regulatory compliance.
PLEXIMID TT50 combines the familiar properties of PLEXIMID molding compounds — high heat deflection temperature, excellent transmission and clarity, very high strength and rigidity, and good weather resistance — with AMECA listing for automotive applications. It is processable on injection molding machines with PMMA-suited 3-zone general purpose screws at melt temperature 250-280°C and mold temperature approximately 110°C. Typical applications include automotive lighting, light guides, lenses, fiber optics, luminaire covers, sight glasses, and cover lenses where high heat resistance and optical precision are essential.
Genuine Röhm PLEXIMID Imported Stock and Technical Support
We supply stable spot inventory of genuine PLEXIMID TT50 high heat PMMI. Official TDS, batch COA, and AMECA documentation are available for automotive lighting, optics, and high-temperature injection molding applications.
Request PLEXIMID TT50 Quotation, TDS, and Sample
Complete TDS, COA, and technical documentation available
Core Advantages of PLEXIMID TT50
- Highest heat resistance: Vicat 150°C — exceptional thermal stability for demanding applications
- High HDT: 146°C (0.45 MPa) — superior dimensional stability under load at elevated temperatures
- High rigidity: 4000 MPa — excellent mechanical strength and stiffness
- High refractive index: 1.53 — superior optical performance for precision optics
- High light transmission: 91% — excellent optical clarity
- AMECA listed — certified for automotive optical applications
- Low CTE: 5.3 × 10⁻⁵ /K — excellent dimensional stability over temperature
- Good weather resistance — UV stable for outdoor and long-term use
Main Applications
- Automotive lighting — headlamp lenses, reflex reflectors, interior lighting components
- Light guides — precision light transmission components
- Optical lenses — precision optics for high-temperature environments
- Fiber optics — optical fiber components
- Luminaire covers — lighting fixtures exposed to high temperatures
- Sight glasses and cover lenses — protective optical components
Full Technical Parameters
| Property | Typical Value | Test Method |
| Material Type | PMMI | — |
| Density | 1.21 g/cm³ | ISO 1183 |
| Tensile Modulus (1mm/min) | 4000 MPa | ISO 527 |
| Stress at Break (5mm/min) | 80 MPa | ISO 527 |
| Strain at Break (5mm/min) | 3% | ISO 527 |
| Charpy Impact Strength (23°C) | 20 kJ/m² | ISO 179/1eU |
| Vicat Softening Temperature (B/50) | 150°C | ISO 306 |
| HDT (0.45 MPa) | 146°C | ISO 75 |
| HDT (1.8 MPa) | 142°C | ISO 75 |
| CTE (0-50°C) | 5.3 × 10⁻⁵ /K | ISO 11359 |
| MVR (260°C/10kg) | 5 cm³/10min | ISO 1133 |
| Luminous Transmittance (d=3mm) | 91% | ISO 13468-2 |
| Refractive Index (589nm/23°C) | 1.53 | ISO 489 |
| Flammability (UL 94, 1.5mm) | HB | IEC 60695-11-10 |
| Fire Class | E | DIN EN 13501-1 |
| AMECA Listing | Yes | — |
Note: All listed figures are typical values and may vary by production batch. Complete independent qualification testing is required before mass production deployment.
Recommended Processing Conditions
| Parameter | Recommended Value |
| Processing Method | Injection Molding |
| Predrying Temperature | ≤100°C |
| Predrying Time (Desiccant Dryer) | 2-3 hours |
| Melt Temperature | 250-280°C |
| Mold Temperature (Injection Molding) | ~110°C |
| Screw Type | PMMA-suited 3-zone general purpose screw for thermoplastics |
Handling and Storage Recommendations
| Storage Rules | Store in dry, cool conditions away from direct sunlight and heat sources. After partial removal, reseal container to prevent moisture permeation. |
| Packaging | 25kg aluminum-laminated polyethylene bags. |
| Predrying | Dry at ≤100°C for 2-3 hours before processing. Moisture control is critical for optical quality. |
| Operation Protection | Follow standard safety practices for handling thermoplastic pellets. Use appropriate PPE during processing. |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | PLEXIMID TT50 original factory technical data sheet | Request TDS |
| COA | Batch-specific certificate of analysis | Request COA |
Frequently Asked Questions
What is PLEXIMID TT50?
PLEXIMID TT50 is a high heat PMMI molding compound with Vicat softening temperature of 150°C, HDT of 146°C, tensile modulus of 4000 MPa, and refractive index of 1.53, AMECA listed for automotive optical applications.
What is the heat resistance of PLEXIMID TT50?
PLEXIMID TT50 offers Vicat softening temperature of 150°C (B/50) and heat deflection temperature of 146°C at 0.45 MPa, providing exceptional thermal stability for high-temperature environments.
What is the difference between PLEXIMID TT50 and PLEXIGLAS?
PLEXIMID TT50 is a PMMI (poly(n-methyl methacrylamide)) with significantly higher heat resistance (Vicat 150°C vs 108°C for PLEXIGLAS 8N), higher rigidity (4000 MPa vs 3300 MPa), and higher refractive index (1.53 vs 1.49), while maintaining optical clarity.
What applications is PLEXIMID TT50 suitable for?
PLEXIMID TT50 is ideal for automotive lighting, light guides, lenses, fiber optics, luminaire covers, sight glasses, and cover lenses requiring high heat resistance, optical clarity, and AMECA compliance.
Is PLEXIMID TT50 AMECA listed?
Yes. PLEXIMID TT50 is AMECA listed, making it suitable for automotive lighting and optical applications requiring regulatory compliance.
What are the processing conditions for PLEXIMID TT50?
Recommended conditions: predrying at ≤100°C for 2-3 hours, melt temperature 250-280°C, mold temperature approximately 110°C. Use injection molding machines with PMMA-suited 3-zone general purpose screws.
What is the refractive index of PLEXIMID TT50?
PLEXIMID TT50 has a refractive index of 1.53 (589nm/23°C), higher than standard PMMA (1.49), making it ideal for advanced optical applications.
Related PLEXIMID & PLEXIGLAS Products
Compare PLEXIMID and PLEXIGLAS molding compounds for different temperature and optical requirements.
| Product | Material | Vicat B/50 | Refractive Index | AMECA | Core Application |
| PLEXIMID TT50 | PMMI | 150°C | 1.53 | ✅ | Highest heat optical molding |
| PLEXIGLAS 8N | PMMA | 108°C | 1.49 | ✅ | High heat injection molding |
| PLEXIGLAS Heatresist hw55 clear | MMA copolymer | 119°C | 1.51 | ✅ | High heat optical molding |
Get PLEXIMID TT50 Bulk Pricing and Technical Support
We supply genuine PLEXIMID TT50 high heat PMMI for automotive lighting, optics, and high-temperature injection molding applications. Contact us for bulk pricing, sample availability, technical documents, and application support.
Request PLEXIMID TT50 Technical Details
Disclaimer: All technical data on this page are for general guidance only and are not product specifications. Buyers must carry out independent trials and verify suitability before bulk ordering. Actual values may vary between production lots.
