Fortron 1140L4 PPS Offers High Strength, Resistance for Molded Parts
When designing a part for injection molding, it might be daunting to navigate the hundreds of plastic materials available. Our Materials Science blog series aims to make the decision making process a little easier by highlighting some key materials available in each of our manufacturing processes.
In narrowing down material selection, materials properties, manufacturability characteristics, cosmetic appearance, and cost will help guide your choice. Depending on the application, some of these considerations will be more important than others. When material properties and performance are key, the Polyphenylene Sulfide Fortron 1140L4’s strength, resistance, and durability make it a great option.
Fortron 1140L4 Properties and Applications
Fortron 1140L4 is a 40% glass-reinforced plastic grade that is the strongest and toughest material in its category. The Polyphenylene Sulfide (PPS) plastic provides excellent heat and chemical resistance, good electrical properties, and is flame-retardant. It offers high hardness and rigidity at elevated temperatures, allowing good load bearing performance as well. The modest filler level provides good weldability properties.
Because of its strong chemical and heat resistance, ultra-high toughness, and good electrical properties outlined above, ideal applications for this grade plastic include automotive and electrical or electronic parts. In the auto industry, Fortron is a great for components requiring high strength and resistance to aggressive chemicals, such as heaters, pumps, valves, and fuel rails. Other common applications include bobbins, lamp housings, brush holders, microwave oven rings, and distillation column packings.
Fortron 1140L4 Specifications
If you are designing a part intended for Fortron injection molding, you will likely be looking for some more specifics on the material such as shrinkage rate, tensile strength, and impact resistance. We’ve outlined some of these properties in the tables below, and you can find more detailed information on Fortron 1140L4 in the material data sheet from the Celanese Corporation published by UL Prospector.
| Mechanical | Nominal Value (English) | Nominal Value (SI) | Test Method |
|---|---|---|---|
|
Tensile Strength-Break 73F/23C Tensile Strength-Break |
29000 psi 28300 psi |
200 MPa 195 MPa |
ASTM D638 ISO 527-2/1A/5 |
| Tensile Strength-Break 73F/23C
Tensile Strength-Break |
1.7% 1.9% |
1.7% 1.9% |
ASTM D638 ISO 527-2/1A/5 |
| Flextural Modulus 73F/23C | 2.10E+6 psi | 14500 MPa | ISO 178 |
| Flextural Stress | 41300 psi |
285 MPa |
ISO 178 |
| Impact | Nominal Value (English) | Nominal Value (SI) | Test Method |
|---|---|---|---|
|
Charpy Notched Impact Strength -22F, -30C; 73F, 23C |
4.8 ft lb/in² |
10 kJ/m² |
ISO 179/1eA |
|
Charpy Unnotched Impact Strength -22F, -30C; 73F, 23C |
25 ft lb/in² |
53 kJ/m² |
ISO 179/1eA |
|
Notched Izod Impact Strength -22F, -30C; 73F, 23C |
4.8 ft lb/in² | 10 kJ/m² | ISO 180/1A |
|
Unnotched Izod Impact Strength 73F, 23C |
16 ft lb/in² | 34 kJ/m² | ISO 180/1U |
Fortron 1140L4 has a hardness rating of 100 on the Rockwell Hardness M-Scale, a melting temperature of 536F or 280C, and shrinkage of 0.13 in. or 3.18mm. Its electrical surface resistivity is >1.0E + 15 ohms, and its electrical strength is 710V/mil or 38kV/mm. The material has a flame rating of V-0 at 0.015in (0.38mm) and 0.06 in. (1.5mm) and a rating of 5VA at 0.12in (3.0mm).
For more information on our manufacturing materials, visit our material comparison guide, and check out our alternative materials guide, a great resource in times of supply shortages.