Reliance PPCP Repol MI3530

Reliance Repol MI3530 is a polypropylene impact copolymer (PPCP) designed for injection molding where medium impact strength, high stiffness, and dimensional stability are required. With a low melt flow index of 3 g/10 min, MI3530 is ideal for crates, furniture, textile components, automotive trims, and general industrial molding. Its medium-impact, medium-flow profile makes it a workhorse for thick-section, load-bearing parts where toughness and rigidity are both critical.

Technical specifications

Physical & mechanical properties

• Melt Flow Rate (230°C/2.16 kg): 3 g/10 min
• Density:90 g/cc
• Tensile strength at yield: 26 MPa
• Elongation at yield: 10–12%
• Flexural modulus (1% secant): 1100 MPa
• Notched Izod impact (23°C): ≈115 J/m
• Shore D Hardness: 69

Thermal properties

• Heat Deflection Temperature (0.455 MPa): ≈95°C

Regulatory & food contact

• Complies with IS 10910, IS 16738:2018, FDA 177.1520, EU 10/2011 and other global standards for food, pharma, and drinking water contact.

Deep technical insights

• Low-MFI advantage: MI3530’s 3 g/10 min MFI is engineered for moderate wall thickness parts, maximizing impact and rigidity while minimizing warpage and flow marks.
• Mechanical synergy: Flexural modulus of 1100 MPa and ≈115 J/m impact make MI3530 ideal for crates, bins, and furniture that must survive drops, stacking, and heavy loads.
• Thermal reliability: HDT ≈95°C ensures structural integrity in warm environments, such as logistics, automotive interiors, and industrial settings.
• Dimensional consistency: Reactor-grade dispersion and process stability deliver repeatable, batch-to-batch performance for OEM and high-volume production.

Applications

Crates & industrial packaging

MI3530 is the preferred grade for industrial crates, beverage crates, logistics bins, pallets, and boxes. Its stiffness and impact balance provide reliable stacking, drop resistance, and long-term durability in logistics and warehousing.

Furniture

For chair shells, backs, arms, legs, bases, drawers, and fittings, MI3530 delivers the load-bearing stiffness and toughness needed for institutional and consumer furniture.

Textile & textile support components

MI3530 is used for bobbins, cones, spools, and textile machine components, where dimensional stability and moderate impact are essential.

Automotive components

Well-suited for interior and non-critical exterior trims, panels, and under-seat structures, MI3530 offers medium impact and high rigidity for automotive applications.

General industrial molded parts

MI3530’s mechanical profile supports housings, covers, machine guards, and appliance sub-components, delivering ruggedness and dimensional stability.

Processing guidelines

• Melt temperature: 190–240°C
• Mold temperature: 20–50°C
• Injection speed: Medium (prevents flow marks in thicker sections)
• Packing pressure: Standard for PP; ensure adequate holding time for ribs and bosses in crates and furniture
• Cooling time: Adjust vs wall thickness for best dimensional stability
• Design tip: MI3530’s low-MFI is best for thicker, high-strength parts. For thin-wall or ultra-short cycles, consider B220MN or high-MFI alternatives.

Performance advantages vs alternatives

• MI3530 vs higher-MFI grades: Superior for thick-walled crates, furniture, and textile components; better dimensional stability and lower risk of flow marks.
• MI3530 vs B030MG/B120MA/B220MN: MI3530 is the robust, medium-impact workhorse for crates/furniture; B220MN is optimized for thin-wall, high-cavity, and very short cycles.
• MI3530 vs competitors: Consistent mechanicals, regulatory compliance, and global RIL supply chain set MI3530 apart from generic trader-supplied PPCP.