PRODUCT DETAILS
PMMA 65NJ (Alcohol Resistant) Material Data
PMMA 65NJ is an alcohol-resistant polymethyl methacrylate with excellent optical clarity, high strength, and reliable durability. It provides stable performance under exposure to alcohol-based environments, making it suitable for medical devices, electronic housings, and consumer product applications.
Key Features
- Alcohol resistance for long-term stability
- High tensile and flexural strength
- Excellent optical clarity and low haze
- Good weatherability and thermal resistance
Typical Properties
| Property | Test Standard | Condition | Unit | 65NJ |
|---|---|---|---|---|
| Specific Gravity | GB/T 1033 | — | g/cm³ | 1.184 |
| Melt Flow Index | GB/T 3682 | 230℃ / 3.8 kg | g/10min | 1.9 |
| Tensile Strength | GB/T 1040 | 10 mm/min | MPa | 82 |
| Elongation at Break | GB/T 6344 | 10 mm/min | % | 12 |
| Flexural Strength | GB/T 9341 | 2 mm/min | MPa | 115.9 |
| Flexural Modulus | GB/T 9341 | 2 mm/min | MPa | 4151 |
| Izod Impact Strength | GB/T 1843 | 1/8 inch | kJ/m² | 4.2 |
| Light Transmittance | GB/T 2410 | 3 mm | % | 93.6 |
| Haze | GB/T 2410 | 3 mm | % | 1.0 |
| Heat Deflection Temp. | GB/T 1634 | 1.8 MPa | ℃ | 83.3 |
| Flammability | GB/T 2048 | 1.5 mm | Class | HB |
| Alcohol Resistance | — | 99% Alcohol | — | Excellent |
Injection Molding Recommendations
- Pre-drying Temperature: 60–80 ℃
- Pre-drying Time: 3–4 hours
- Melting Temperature: 210–240 ℃
- Mold Temperature: 50–70 ℃
Disclaimer
The property data listed are typical values for reference only. They are not guaranteed specifications and should not be used as inspection criteria. Users must evaluate the material under their own processing conditions to confirm suitability for intended applications. Responsibility for end-use performance lies solely with the user.
Source: Su Master New Materials (Guangdong) Co., Ltd. — Technical Data Sheet (65NJ):contentReference[oaicite:0]{index=0}.


