HMEL PP Polysure Y25GR

Polysure Y25GR is a Novolen controlled-rheology polypropylene homopolymer from HMEL, engineered for high-performance fiber applications. With a melt flow index of 25 g/10min and narrow molecular weight distribution, Y25GR delivers outstanding spinnability, gas fading resistance, and UV stability, making it ideal for multifilament yarn, BCF, staple fiber, nonwovens, and extrusion coating. The grade is fully IS 10910 and FDA 21 CFR 177.1520 compliant and trusted by textile, carpet, and hygiene converters for high-speed, high-tenacity fiber output.

Key Technical Insights:

• MFI 25 g/10min
• Density 0.905 g/cc
• Tensile Yield 33 MPa
• Elongation at Yield 10%
• Flexural Modulus 1200 MPa
• Izod Impact @23°C 30 J/m
• Vicat 153°C
• HDT 90°C

Y25GR vs Y25GR1 Differences

Y25GR is Novolen-based, optimized for gas/UV fading resistance and fiber tenacity, while Y25GR1 (Spheripol-II reactor) offers smoother processing and higher flexural modulus for similar fiber and nonwoven applications. Both grades maintain high consistency and are suited for demanding textile and nonwoven lines.

Applications

Multifilament Yarn, BCF Carpets & Nonwovens

Y25GR is purpose-built for multifilament yarns, BCF for carpets, staple fibers for geotextiles, spunbond and meltblown nonwovens for hygiene, and extrusion coating for paper. Its narrow MWD ensures uniform spinning and fewer breaks, while superior gas fading resistance and UV protection safeguard fiber color and strength in end-use. The grade’s high tenacity and elongation post-draw make it the preferred choice for converters seeking reliability in high-speed fiber and nonwoven production.

Processing Guidelines:
Melt temperature 195–240°C (barrel), 240–250°C (die); draw ratio 1:3000+ recommended for fiber lines. Stable melt ensures consistent filament diameter and minimal downtime.

Key Performance Advantages Over Standard PP

Polysure Y25GR stands out for its uniform spinnability, low gel content, and enhanced gas/UV fading resistance. The grade’s narrow molecular weight distribution and positive list additives support high-speed fiber extrusion with fewer filament breaks and higher output. Compared to standard reactor PP, Y25GR provides improved color stability, higher tenacity, and superior process reliability for both continuous and staple fiber applications.

Comparable Fiber Grades in India

Top alternatives include Y25GR1 (Spheripol reactor, higher flexural modulus), Y35GR (higher MFI for extrusion coating/spunbond), OPAL RH25X (Ineos CR technology), and IOCL PPY2501 (cost-competitive reactor grade). Y25GR’s Novolen process and gas/UV stabilization offer a unique advantage for converters targeting demanding fiber and nonwoven markets.

Please note: Y25GR has been superseded by Y25GR1 – superior alternative with improved performance metrics and cost efficiency. Explore full specifications, applications, and advantages to see how it delivers better value for your manufacturing needs.