Quick Specs
Temperature Range
-20°C to +80°C
Available Sizes
Sheets: 20-150mm thick | Rods: 20-300mm dia
Available in
Sheet | Rod
NPP (Neat Polypropylene)
Neat Polypropylene (NPP) is the pure, unmodified version of the polypropylene polymer.
Key Features
- Lightweight
- High Heat Resistance
- Excellent Chemical Stability
- Superior Impact Resistance
- Easy Welding & Machining
Available Grades & Variants
Food Grade NPP
Food-grade NPP is pure, FDA-approved polypropylene designed for safe, non-toxic, and microwave-safe food contact.
Technical Specifications
Mechanical properties
Density | ASTM D792 | g/cm3 | 0.9 |
Tensile yield strength | ASTM D638 | Mpa | 29 |
Breaking elongation | ASTM D638 | % | 300 |
Bending strength | ASTM D790 | Mpa | 35 |
Flexural modulus | ASTM D790 | Mpa | 1030 |
Shore hardness | ASTM D2240 | D | 83 |
Impact strength | ASTM D256 | J/M | 35 |
Thermal Properties
Melting point | DSC | °C | 170 |
Heat distortion temperature | ASTM D648 | °C | 83 |
Operating temperature | – | °C | 95 |
Maximum operating temperature | – | °C | 120 |
Coefficient of linear themal | – | °C | 15 |
Electrical Properties
Dielectric strength | ASTM D150 | KV-mm | 40 |
| Volume resistivit | ASTM D257 | Ω.cm | 1014 |
Surface resistivity | ASTM D257 | Ω | 1016 |
Dielectric constant | ASTM D149 | – | 2.3 |
Chemical Properties
| Water absorption | 23°C 60%RH | % | 0.05 |
Acid resistance | 23°C 60%RH | + | |
Alkali resistance | + | ||
Acid and alkali resistance | + | ||
Resistance to sodium chlorate | + | ||
Resistance to aromatic compounds | – | ||
Resistance to ketone | 23°C 60%RH | + | |
Resistance to hot water | 23°C 60%RH | + |
Others
Flammability | UL 94 | HB | |
Viscosity | – | + | |
Non toxic | EEC 90/128 FDA | + | |
Coefficient of friction | DIN 53375 | 0.3 | |
Anti-ultraviolet | – | 0 |