Polypropylene (PP) is an essential engineering thermoplastic for corrosive environments and high-fatigue applications. Known for its low density and chemical inertness, SRT Plastics provides precision-cut PP in two specialized grades to ensure long-term industrial reliability.
PPH is the stiffest grade, offering superior thermal stability and strength. It is the industry standard for structural chemical tanks, laboratory furniture, and high-heat industrial ducting where dimensional integrity under stress is critical.
PPC is engineered with ethylene for added ductility and toughness. It is the superior choice for high-vibration environments or sub-zero temperatures, ensuring components remain durable and shatter-proof in cold-storage or high-impact industrial zones.
Polypropylene (PP) is recognized for its extraordinary technical compliance and safety certifications, particularly in chemical and food-processing environments. Information for all Plastic Classifications, Certificates and Standards is available for download in the following tab. Also see our informative page on plastic standards and certifications here.
| Chemical Resistance | Outstanding (Resistant to nearly all acids, alkalis, and organic solvents) |
| Mechanical Strength | High fatigue resistance; ideal for "living hinges" and high-cycle components. |
| Sustainability Certifications | 100% Recyclable Polymer (Compatible with UK Net Zero Goals) |
| Sanitary Safety | FDA & EU Certified for Food Contact and medical applications. |
Selecting the correct grade of Polypropylene is vital for balancing rigidity and impact strength. Homopolymer (PPH): Offers higher stiffness and superior chemical resistance at elevated temperatures, making it the first choice for rigid industrial tanks. Copolymer (PPC): Incorporates ethylene to provide much higher impact strength, especially at low temperatures where PPH may become brittle. Thermal Note: PP has a high Max Service Temp of 100 degrees Celsius, allowing for hot-filling and high-temperature cleaning. For applications requiring optical clarity alongside heat resistance, consider Polycarbonate (PC). See the full product range below for all available grades.
| Application Focus | Optimized for Chemical Tanks, Food Processing, Laboratory equipment, and prosthetic components. |
| Thermal Limits | Continuous service up to 100°C; melting point approximately 160°C. |
| Surface Finish | Satin/Grained (Grey, White, Black, Natural) or smooth for cutting boards. |
| Environmental Stability | Naturally resistant to moisture and bacteria; UV-stabilized grades recommended for outdoor use. |
| Thickness Range | Available from 1.0mm to 30.0mm for fabricated tanks and machined parts. |
