| HS Code | 582021 |
| Density | 1.13 g/cm³ |
| Melt Flow Rate | 4.0 g/10 min at 230°C/2.16 kg |
| Tensile Stress At Yield | 70 MPa |
| Tensile Strain At Yield | 3 % |
| Flexural Modulus | 5200 MPa |
| Charpy Notched Impact Strength 23c | 7.0 kJ/m² |
| Charpy Unnotched Impact Strength 23c | 27 kJ/m² |
| Heat Deflection Temperature 0 45mpa | 165 °C |
| Heat Deflection Temperature 1 8mpa | 140 °C |
| Vicat Softening Temperature | 168 °C |
As an accredited SABIC PPcompound G3240A factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied as 25 kg bags of SABIC PPcompound G3240A, a glass-fiber-reinforced polypropylene compound in granular form. |
| Container Loading (20′ FCL) | 20′ FCL container loaded with palletized SABIC PPcompound G3240A polypropylene compound, securely packed, shipped as full container load. |
| Shipping | SABIC PPcompound G3240A is a polypropylene-based compound supplied as pellets. It is non-hazardous for transport under IMDG, ADR, and IATA regulations. Ship in moisture-resistant bags or bulk containers, protected from direct sunlight and excessive heat. Ensure dry, well-ventilated conditions and avoid prolonged storage above 40°C. |
| Storage | Store SABIC PPcompound G3240A in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and open flames. Keep containers tightly sealed to prevent moisture, dust, and contamination. Avoid temperatures above 50°C. Maintain good housekeeping and follow standard industrial hygiene practices to minimize static buildup and fire risk. |
| Shelf Life | Shelf life is 2 years from manufacture when stored in original packaging, away from heat, moisture, and direct sunlight. |
The underhood air-management sector specifies SABIC® PPcompound G3240A for radiator fan shrouds, intercooler air guides, and fan support frames exposed to sustained engine-compartment temperatures in the 110–135 °C range. The compound’s nominal 40 wt% glass-fiber reinforcement, verified by ash content per ISO 3451-1, produces a tensile modulus class near 10,000 MPa when tested to ISO 527-2/1A and retains dimensional stability under 1.8 MPa load according to ISO 75-2/Af. Compliance for production applications is established through OEM material approval packages that include ISO 179-1/1eA Charpy notched impact at 23 °C and −30 °C, ISO 16750-4 thermal cycling for engine-compartment exposure, and fluid resistance screening against engine coolant, mineral oil, and windshield-washer media under ISO 1817. REACH SVHC declarations and the European End-of-Life Vehicles Directive 2000/53/EC govern documentary compliance in vehicle assembly. The formulation addition ratio is not a let-down operation: the compound is charged as 100 wt% supplied feedstock, and no additional chopped-glass masterbatch or coupling concentrate is introduced because fiber content and interfacial coupling are already controlled at the supply tier. Clean regrind from hot-runner runners and gate vestiges is ordinarily reintroduced at 10–15 wt% in non-load-bearing shroud sections only after verifying that welded melt fronts and notched impact values remain above OEM lower specification limits. Production-scale injection molding uses a reciprocating screw with a low-compression barrier profile and an L/D ratio of 20:1–24:1; melt temperature is held between 230 °C and 270 °C, with the upper limit constrained by polypropylene thermal-oxidative degradation and fiber-matrix debonding. Mold temperature is maintained between 40 °C and 80 °C to balance surface finish against skin-layer solidification. The critical processing conflict lies in injection speed: above 180 mm/s, thick bosses can exhibit jetting and free-fiber orientation, while below 60 mm/s, weld-line strength deteriorates at converging melt fronts. Holding pressure is typically set at 60–80% of peak injection pressure, and gate-seal time is confirmed by shot-weight stabilization because premature gate freeze creates sink marks around mounting bosses. Pre-drying at 80 °C for 2–4 h is required when moisture content exceeds 0.05% to prevent surface splay. Terminal product types include radiator fan shrouds, condenser-fan support rings, intercooler air guides, and cowl-to-core support frames for internal-combustion and hybrid platforms.
In vertical-axis washing machine spin tub flanges and impeller hubs, out-of-roundness after ejection is the dominant failure mode because the 40 wt% glass-fiber orientation creates nonuniform shrinkage among the hub, ribs, and rim. Sector compliance is drawn from IEC 60335-1 and IEC 60335-2-7 for household washing machines, with material declarations governed by RoHS Directive 2011/65/EU and supplier REACH notifications. Flammability classification is normally limited to UL 94 HB; the grade is not supplied as a flame-retardant compound and must not be selected where IEC 60695-11-10 V-0 is required. The addition ratio is fixed at 100 wt% compound. Extension with 10 wt% talc-filled PP or neat PP is not performed for load-bearing tub structures because dilution lowers flexural modulus under ISO 178 and shifts the first natural frequency of the spin tub assembly. Molding is performed on hydraulic injection machines with clamping forces from 12,000 kN to 25,000 kN for large tub formats. Sequential valve-gate systems open from the central hub outward to maintain a planar melt front; this gate sequencing controls glass-fiber orientation and reduces out-of-roundness and rim-to-hub distortion. Melt temperature is set at 235–265 °C, mold temperature at 60–80 °C, and holding pressure is verified by part-weight stability rather than by fixed timer alone. Finished component types include vertical-axis outer tub housings, impeller hubs, spin basket mounting flanges, and balance-ring seats.
In corrosive aqueous transfer and filtration service, glass-filled polypropylene pump components are specified only when the operating envelope excludes strong oxidizers, aromatic hydrocarbons, and chlorinated solvents above 40 °C. SABIC PPcompound G3240A is processed at 100 wt% as supplied for pump impellers, diffuser plates, and strainer housings in non-potable industrial water service, where the 40 wt% glass-fiber reinforcement raises creep resistance under hydraulic pressure and the polypropylene matrix resists dilute inorganic acids and alkalis at ambient temperatures. Sector compliance is frequently based on ISO 15493 for industrial thermoplastic piping systems, with mechanical verification performed under ISO 527-2/1A, ISO 178, and ISO 179-1/1eA; potable-water contact is not assumed, and NSF/ANSI 61 certification must be established separately on the finished component if required. The formulation addition ratio includes the option of a PP-carrier UV stabilizer masterbatch at 1.5–2.5 wt% for outdoor-mounted pump skid shrouds, but no further glass reinforcement or mineral filler is introduced because the as-delivered glass fraction is already fixed at nominal 40 wt%. Processing of pump components uses thick-wall injection molding with mold temperatures between 60 °C and 80 °C; wall sections above 6 mm require extended hold time and controlled cooling to reduce internal voids, and melt residence time above 240 °C is kept below 10 min to limit fiber attrition that reduces impeller burst strength. Terminal product types include horizontal multistage pump diffusers, strainer housings, low-pressure volute casings, and filter bodies for industrial water recirculation systems.
Substitution of cast aluminum in small-frame electric motor end shields is governed less by short-term stiffness than by the fatigue response of the glass-fiber orientation distribution around bearing seats and bolt circles. Compliance for motor end shields is verified under IEC 60034-1 for rotating electrical machines and IEC 60335-1 for appliance-integrated motors, while material data are supplied from ISO 527-2/1A, ISO 178, and ISO 75-2/Af. Fatigue verification of molded end shields is commonly performed according to ASTM D7791 under uniaxial cyclic loading. The formulation addition ratio is 100 wt% virgin compound; regrind addition above 10 wt% is generally excluded for end shields because repeated thermal history shortens fiber length and shifts the glass-fiber length distribution below the threshold at which fatigue crack initiation resistance begins to decline. Production-scale molding demands strict attention to gate position: a single center gate produces radial fiber orientation and a weak weld line at the outer bolt circle, whereas multiple valve gates with sequential opening align fibers circumferentially around bearing seats and mounting ears. Melt temperature is set at 235–260 °C, mold temperature at 50–70 °C, and injection velocity in the 80–150 mm/s range. The processing window is narrow because high-velocity filling at 40 wt% glass loading can form skin-layer fiber-free zones that reduce surface fatigue resistance. Terminal product types include electric motor end shields for frame sizes up to IEC 132, fan guards for totally enclosed fan-cooled motors, and junction box bases. Use is confined to enclosures where UL 94 HB is permitted by the end-product standard; flame-retardant requirements such as UL 94 V-0 are outside the specification of this grade.
| Application segment | Melt temperature | Mold temperature | Drying threshold | Regrind limit | Process boundary |
|---|---|---|---|---|---|
| Under-hood air management | 230–270 °C | 40–80 °C | 80 °C, 2–4 h at >0.05% moisture | 10–15 wt% non-load-bearing | Injection speed 60–180 mm/s; holding pressure 60–80% of peak |
| Vertical-axis spin tub flanges | 235–265 °C | 60–80 °C | 80 °C, 2–4 h before wet-season molding | 0–10 wt% after tensile weld-line verification | Sequential valve gates; weight-stabilized hold pressure |
| Industrial aqueous pump components | 230–260 °C | 60–80 °C | 80 °C, 2–4 h at >0.05% moisture | 0–10 wt% for non-pressure housings | Residence time above 240 °C limited to <10 min |
| Electric motor end shields | 235–260 °C | 50–70 °C | 80 °C, 2–4 h at >0.05% moisture | ≤10 wt% excluded fatigue-critical sections | Injection velocity 80–150 mm/s; multi-valve sequencing |
| EV cooling air guides | 230–260 °C | 40–70 °C | 80 °C, 2–4 h at >0.05% moisture | 0–10 wt% non-structural lattice ribs | No V-0 requirement; HB enclosures only |
| Hand-held power tool housings | 230–260 °C | 40–60 °C | 80 °C, 2–4 h at >0.05% moisture | 0–10 wt% in non-impact guard areas | Thin-wall fill below 2.5 mm requires fast injection and high pack |
The technical requirement in electric vehicle cooling modules differs from internal-combustion underhood components in that ambient temperatures are lower but flow-induced vibration periods are longer. SABIC PPcompound G3240A is used for cooling fan modules, air guides, and support brackets where continuous service temperatures do not exceed 110 °C under load. Regulatory compliance follows ISO 16750-4 for environmental exposure, REACH SVHC declarations, and the ELV Directive 2000/53/EC for recycling documentation, with material data supplied from ISO 527-2/1A and ISO 179-1/1eA. The material is charged at 100 wt% as supplied; no additional glass or coupling concentrate is required, and regrind is limited to 10 wt% in non-structural lattice ribs to maintain dimensional repeatability after thermal cycling. Processing is by hot-runner injection molding with melt temperatures of 230–260 °C and mold temperatures of 40–70 °C. The principal production risk is short-shot formation in thin air-guide sections; cavity pressure sensors are used to confirm gate freeze and to prevent premature switch-over that produces incomplete fiber packing along trailing edges. Terminal product types include electric vehicle cooling fan shrouds, air discharge guides, fan support brackets, and underhood air-management frames for plug-in and battery-electric platforms.
| Application sector | Primary standard | Test or clause relevance | Limitation applied to G3240A |
|---|---|---|---|
| Automotive under-hood air management | ISO 16750-4 | Thermal cycling, fluid resistance, vibration exposure | Not for continuous contact with unapproved solvents above 40 °C |
| Automotive under-hood air management | ISO 527-2/1A | Tensile modulus class near 10,000 MPa | Anisotropic shrinkage requires gate-position validation |
| Household washing machine spin tubs | IEC 60335-2-7 | Mechanical strength, unbalanced load, thermal aging | UL 94 HB only; not for V-0 enclosures |
| Industrial aqueous pump service | ISO 15493 | Thermoplastic piping and pressure-service material selection | Not assumed potable; NSF/ANSI 61 must be separately evaluated |
| Electric motor end shields | IEC 60034-1 | Rotating machine enclosure and structural integrity | Fatigue-critical regrind above 10 wt% excluded |
| Hand-held power tool housings | IEC 62841-1 | Motor-operated hand-held tool safety | Double-insulated designs only; flammability not upgraded |
Hand-held power tool housings and guards represent a narrow but established application where the grade’s 40 wt% glass-fiber stiffness permits thinner wall sections than unreinforced polypropylene without excessive deflection. Processing on standard injection molding equipment with melt temperatures of 230–260 °C and mold temperatures of 40–60 °C is regarded as generic; the main constraint is that the compound is not flame-retardant and remains limited to double-insulated tool designs where UL 94 HB is acceptable under IEC 62841-1. The formulation addition ratio is 100 wt% compound; dry-coloration masterbatch may be incorporated at up to 2 wt%, but no additional impact modifier is used because ductile fracture behavior is evaluated at the finished-part level by drop testing under IEC 60068-2-31. Thin-wall fill below 2.5 mm requires fast injection and high pack pressure, and tooling must include generous vents to prevent gas burn at flow fronts. Terminal products include drill housing clam shells, angle-grinder guards, and blower fan housings.
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Designated as a chemically coupled 40 wt% short-glass-fiber-reinforced polypropylene injection-molding compound, SABIC® PPcompound G3240A is supplied as cylindrical pellets for semi-structural and structural components in automotive, appliance, and power-tool applications. The grade is specified where the short-term thermal resistance and stiffness of unfilled PP are insufficient, but where full engineering thermoplastics such as glass-filled PA66 are not required. The reinforcement system consists of E-glass fiber with a silane-based sizing and a maleic anhydride-grafted polypropylene coupling agent; this combination converts the otherwise weak fiber-matrix interface into a covalent-bonded interphase. Under ISO 10350-1 single-point datasheets, density is listed at 1.21 g/cm³ (ISO 1183-1) and melt volume-flow rate in the range 6–10 cm³/10 min at 230 °C/2.16 kg (ISO 1133-1:2022). Tensile modulus to ISO 527-2/1A is typically 9,500–11,000 MPa at 23 °C, while notched Charpy impact strength to ISO 179-1/1eA is typically 10–14 kJ/m² at 23 °C. The material should be dried at 80 °C for 2–4 h when packaging has been opened and ambient relative humidity exceeds 60%; otherwise surface splay and weld-line porosity can appear during filling.
At 40 wt% loading, mechanical response is governed by the fraction of fiber length exceeding the critical transfer length. For a PP matrix shear yield stress near 25 MPa and an interfacial shear strength of 15–20 MPa, the critical fiber length falls in the 100–150 µm range. Fiber attrition in a conventional reciprocating screw lowers number-average fiber length from the pellet value of 300–400 µm to 150–250 µm after molding. If the number-average length falls below 150 µm, notched Charpy values can decline by 20–30% relative to virgin material even when tensile modulus changes by less than 5%. Under ISO 527-2/1A, the stress-strain response is nearly linear to failure; elongation at break is typically 2–3%. There is no cold-drawing plateau as observed in unfilled PP. The tensile curve is linear to approximately 70% of ultimate stress, after which matrix microcracking and fiber pull-out generate a non-linear region before fracture. This sensitivity to fiber-length retention is why screw speed, back pressure, and regrind fraction are controlled more tightly for G3240A than for talc-filled or unfilled PP grades.
| Property | Test Method | SABIC PPcompound G3240A | Talc-Filled PP | Unfilled PP Copolymer |
|---|---|---|---|---|
| Density | ISO 1183-1 | 1.21 g/cm³ | 1.05 g/cm³ | 0.90 g/cm³ |
| Tensile modulus | ISO 527-2/1A | 9,500–11,000 MPa | 2,600–3,000 MPa | 1,100–1,400 MPa |
| Notched Charpy at 23 °C | ISO 179-1/1eA | 10–14 kJ/m² | 5–8 kJ/m² | No break or 40–60 kJ/m² |
| HDT/B at 0.45 MPa | ISO 75-2/Bf | 158–162 °C | 90–110 °C | 75–85 °C |
| Mold shrinkage | ISO 294-4 | 0.1–0.3% flow; 0.4–0.6% transverse | 0.8–1.0% | 1.2–1.6% |
Processors running G3240A on 80 mm diameter screws at 120 rpm report screw recovery times 20–30% longer than unfilled PP due to higher melt viscosity and abrasive wear. Injection units should use bimetallic barrels and screws with hardened flight lands of 58–62 HRC. The check ring should be a tungsten-carbide ring or boron-nitrided steel; glass fibers lodge behind nitrided check rings and cause shot-weight drift of 2–4%. The recommended shot size is 40–70% of maximum barrel capacity. When shot size is below 30%, residence time increases and tensile strength declines from thermo-oxidative degradation; when shot size exceeds 80%, melt homogeneity suffers because the metering section is too short for adequate dispersive mixing. Back pressure of 5–10 bar hydraulic is applied to densify the melt without excessive fiber breakage. If back pressure exceeds 15 bar, fiber attrition across the non-return valve becomes measurable.
Capillary rheometry to ISO 11443 at 250 °C shows a pseudoplastic flow curve with apparent viscosity of 140–200 Pa·s at 1,000 s⁻¹ and 45–70 Pa·s at 10,000 s⁻¹. The power-law index is approximately 0.30–0.40, so pressure demand is highly sensitive to channel cross-section but less sensitive to injection speed. Spiral-flow length in a 2 mm channel at 250 °C melt and 40 °C mold temperature is shorter by 30–40% than an unfilled PP impact copolymer at the same conditions; published data for this specific configuration is limited, and tooling trials on the production machine are required. A ball-type non-return valve with a positive sliding seal is preferred over ring-style valves because ring-style valves accumulate glass fibers behind the seat and show inconsistent shutoff. At injection pressures above 120 MPa, fiber-rich melt may be forced through the vent slots of poorly maintained molds, producing flash with high glass content and subsequent hot-tip wear. Maintaining a melt cushion of 3–5 mm is required to keep the screw tip packed and to prevent gas entrapment in the shot.
Direct replacement of a short-glass PA66 bracket with G3240A requires redesign of the rib structure rather than simple material substitution. Short-glass PA66 has a conditioned tensile modulus of approximately 6,000–9,000 MPa depending on glass content, while G3240A maintains 9,500–11,000 MPa dry at 23 °C. However, PA66 retains strength at 150 °C, while G3240A is limited to approximately 110 °C under structural load; above this temperature, the PP matrix softens and creep rate increases. The density difference is significant: 1.21 g/cm³ for G3240A against 1.35–1.40 g/cm³ for a 30 wt% glass-filled PA66, producing a part mass reduction of 10–14% at equal volume. Water absorption according to ISO 62 at 23 °C saturation is below 0.03% for G3240A, whereas glass-filled PA66 absorbs 5–6%. This water uptake changes PA66 dimensions by 0.4–0.8% and reduces its tensile modulus by 20–30%. PP compound is dimensionally unaffected by humidity, but is not a substitute when continuous exposure to hot oil or calcium chloride road salt is combined with high cyclic stress. Chemical resistance of the PP matrix is superior in dilute acids and alkaline cleaners but inferior in aromatic and chlorinated hydrocarbons.
Because the PP matrix is hydrophobic, conditioning at 80 °C and 95% relative humidity for 500 h changes mass by less than 0.1%. The dominant post-molding size change is thermal relaxation of fiber orientation and frozen-in stress. In a 2 mm thick plaque, the oriented skin is 200–300 µm thick, and the core contains fewer oriented fibers. Post-molding annealing at 80 °C for 2 h can produce 0.05–0.15% additional shrinkage in the flow direction and 0.1–0.2% expansion in the transverse direction. For close-tolerance bores, a post-molding annealing step is therefore specified before machining or assembly. Weld-line locations show higher anisotropy; tensile strength at a weld line is typically 50–60% of the bulk value because glass fibers orient parallel to the weld interface rather than across it. Gate placement should move weld lines away from primary tensile stress paths, and multiple gates should be sequenced with valve timing to avoid gas traps at fiber-rich flow fronts.
Fiber orientation in the skin layer follows the melt-front velocity profile, while the core layer contains transversely oriented fibers depending on cavity thickness and injection speed. In a 2 mm plaque, the skin/core ratio can be 0.6–0.8; this dominates shrinkage. The differential between flow and transverse shrinkage for G3240A is 0.2–0.4%, less than that of a 20 wt% glass grade because higher fiber content constrains flow-direction shrinkage. This reduced warpage is used in long flat parts such as fan shrouds. For parts with wall-thickness transitions, mold filling simulations should use fiber-orientation tensors calibrated with ISO 294-4 shrinkage plaques; otherwise predicted warpage can deviate by 0.5 mm over a 300 mm span.
| Parameter | Standard/Regulation | Condition or Threshold | Relevance |
|---|---|---|---|
| Density | ISO 1183-1 | 23 °C | Mass and volume control |
| Melt volume-flow rate | ISO 1133-1:2022 | 230 °C/2.16 kg | Processibility |
| Tensile modulus | ISO 527-2/1A | 23 °C, 1 mm/min | Stiffness |
| Notched Charpy | ISO 179-1/1eA | 23 °C, edgewise | Impact resistance |
| HDT/B | ISO 75-2/Bf | 0.45 MPa flatwise | Short-term heat resistance |
| RoHS | Directive 2011/65/EU | Pass at homogeneous material level | Electrical and electronic access |
| REACH SVHC | Regulation (EC) No 1907/2006 | <0.1 wt% per SVHC | EU market compliance |
| Water absorption | ISO 62 | 23 °C saturation | Humidity-related dimensional stability |
Published failure modes at the molding machine include nozzle freeze-off when the nozzle temperature is set below 230 °C and screw recovery surging when the hopper feed throat temperature exceeds 60 °C, causing pellet bridging. These failures are controlled by using a reverse-tapered shut-off nozzle, maintaining the feed throat at 40–60 °C, and setting barrel zones from 200 °C at the feed to 250 °C at the metering section. A cushion of 3–5 mm and hold pressure of 50–70% of peak injection pressure provide gate-seal integrity. For high-gloss appearance surfaces, mold temperatures above 60 °C reduce glass-fiber read-out; for dimensional tolerance, mold temperatures of 30–40 °C minimize post-shrinkage. Processors should not combine this grade with copper-based heat stabilizers at processing temperatures above 200 °C because copper ions can accelerate PP thermo-oxidative degradation; hindered phenolic or phosphite stabilizer packages should be used instead.
