| HS Code | 754730 |
| Product | Hifax TKC 220P C13098 PP Copolymer |
| Manufacturer | LyondellBasell |
| Material Type | Polypropylene (PP) Copolymer |
| Appearance | Black Granules |
| Density | 0.89 g/cm³ |
| Melt Flow Rate 230 C 2 16 Kg | 10 g/10 min |
| Tensile Stress At Yield | 18 MPa |
| Elongation At Break | >300% |
| Flexural Modulus | 850 MPa |
| Charpy Impact Notched 23 C | 50 kJ/m² |
| Charpy Impact Notched 30 C | 8 kJ/m² |
| Shore D Hardness | 55 |
| Vicat Softening Temperature | 120 °C |
| Heat Deflection Temperature 0 45 Mpa | 70 °C |
| Mold Shrinkage | 1.5% |
As an accredited Hifax TKC 220P C13098 PP Copolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Hifax TKC 220P C13098 PP Copolymer is supplied as free-flowing pellets in 25 kg multiwall paper bags, palletized and stretch-wrapped for safe transport. |
| Container Loading (20′ FCL) | 20′ FCL loading: palletized PP copolymer bags, securely stowed and braced to prevent shifting during transit. Ensure clean, dry container. |
| Shipping | Hifax TKC 220P C13098 is a polypropylene copolymer supplied as solid pellets. It is non-hazardous for transport under normal conditions. Ship in clean, dry containers or lined bulk bags, avoiding moisture and excessive heat. No special handling required beyond standard safe loading and storage practices. |
| Storage | Store Hifax TKC 220P C13098 PP Copolymer in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers tightly sealed to prevent contamination and moisture pickup. Minimize dust generation; if dispersed, polypropylene dust may form explosive mixtures. Follow safe handling practices to avoid static discharge. |
| Shelf Life | Shelf life is typically one year from shipment if stored in a cool, dry place, away from sunlight and heat. |
Injection moulding of Hifax TKC 220P C13098 for bumper fascia and lower grille surrounds begins with pellet moisture held below 0.05 wt% by drying for 2 h at 80 °C when storage condensation is present. The nominal melt flow rate of 22 g/10 min at 230 °C/2.16 kg measured per ISO 1133-1 places the grade in the high-flow impact-copolymer range for large projected-area tools. Clamp force is selected between 2,500 kN and 4,500 kN based on the projected area of the fascia tool. Melt temperature is set at 220 °C to 250 °C. Tool temperature is held at 30 °C to 50 °C. Hold pressure of 40 MPa to 60 MPa is maintained until gate freeze to prevent sink marks around ribs and bosses. Regrind from sprues and runners is introduced at up to 20 wt% when the regrind particle size remains below 6 mm and no oil contamination is present. Exterior parts must meet ECE R42 external-projection requirements and are validated for 4 km/h low-speed barrier impact under FMVSS 581. Moulded-in black eliminates paint chipping, but any painted surface requires flame or plasma pretreatment because PP surface energy remains below 30 mN/m. Dimensional conformity is checked according to ISO 294-4 after 24 h conditioning. The grade should not be specified for class A painted panels without an adhesion-promoting primer system. The C13098 designation already contains the black pigment and stabilisation package, so no separate carbon-black masterbatch is required for exterior weatherable parts.
The stabilisation package in Hifax TKC 220P C13098 limits oxidative chain scission during repeated heat histories. Regrind content above 20 wt% shifts notched Charpy impact energy measured according to ISO 179-1/1eA at -30 °C by more than 10% relative to virgin pellets. Moulders running black exterior trim therefore keep first-generation regrind at 15 wt% to 20 wt% and avoid second-generation material. Melt temperature during regrind processing is not raised above 240 °C because rubber-phase agglomeration in the impact copolymer can reduce impact resistance. The black C13098 designation already contains carbon black at a loading sufficient for vehicle exterior UV resistance when tested under ISO 4892-2 cycle 1 for 1,000 h. The same test method is used to confirm that surface cracking does not occur before 1,000 h of xenon-arc exposure. Low mould temperatures of 25 °C to 35 °C produce the low-gloss finish required for unpainted lower bodyside trim. If no additional UV masterbatch is added to the C13098 grade, colour dilution should be avoided because the stabiliser package is fixed in the pellet. Barrel residence time is kept below 6 min for black exterior trim. Longer residence times produce brown streaks and loss of impact strength. Processors should also monitor screw recovery time because the high-flow matrix can retain excessive frictional heat when back pressure exceeds 5 MPa.
For under-bonnet coolant overflow tanks, the first constraint is the weld-line strength of two injection-moulded shells joined by hot-plate welding. Hifax TKC 220P C13098 is processed at a melt temperature of 220 °C to 240 °C and a tool temperature of 35 °C to 45 °C to maintain weld-line integrity. The nominal wall of the tank is 2.5 mm to 3.5 mm. The material withstands continuous contact with ethylene glycol/water mixtures at 50 vol% and short-term under-bonnet air temperatures up to 100 °C. Internal pressure in the tank is limited by the cap relief valve, typically 1.5 bar. Burst pressure of the welded assembly is verified at 4 bar on prototype parts to ensure a safety factor. The tank is subjected to thermal cycling between -30 °C and 80 °C according to ISO 16750-4. Tensile weld-line strength is measured according to ASTM D638 with a type I specimen. The PP copolymer is not suitable for diesel exhaust fluid reservoirs because urea solution may accelerate oxidative attack at weld lines. The grade does not provide flame-retardant performance; direct contact with exhaust components must be avoided. This application uses the C13098 black additive package, but coolant bottles are often moulded in natural or black depending on OEM specification. If natural resin is used, no additional UV package is required for under-bonnet service. Gate-seal monitoring is critical because premature gate freeze causes underfill at the weld lip. Hold pressure of 30 MPa to 40 MPa is maintained for 6 s to 10 s after fill.
Cold-chain returnable totes moulded from Hifax TKC 220P C13098 are filled through tunnel gates at high volume to minimise weld-line orientation in the container base. The deep-draw containers are moulded with wall thickness of 3 mm to 4 mm and pack pressure of 35 MPa to 45 MPa. Low-temperature ductility at -20 °C is relevant because totes are stored in freezer rooms. Stacking strength is evaluated according to ISO 12048 at 23 °C and after 24 h conditioning at -20 °C. The base structure is ribbed to withstand a static top load of 1,500 N when loaded and stacked five high. The grade is not approved for direct food contact under EU Regulation 10/2011 unless a specific declaration of compliance is obtained from the compounder. Industrial returnable packaging is therefore the primary application. Mould release requires draft angles of 1.5° to 2° per side. Demoulding temperature is held below 70 °C to prevent rib base deformation. Hot runners with valve gates are preferred over cold runners because the material is shear-sensitive and gate blush is visible on textured surfaces. Cycle times for a 2.5 kg tote are typically 35 s to 45 s on an injection machine with 5,500 kN to 8,000 kN clamp force. Post-mould shrinkage is measured using ISO 294-4 after 24 h and should remain below 1.8% in the flow direction for dimensional interchangeability with existing fleet. The material should not be exposed to repeated steam sterilisation above 110 °C because dimensional creep can occur in load-bearing lower ribs.
| Application | Standard | Condition | Validation Objective |
|---|---|---|---|
| Bumper fascia | FMVSS 581, ECE R42 | 4 km/h barrier impact; external projection | Low-speed damage and pedestrian safety |
| Black exterior trim | ISO 4892-2, ISO 179-1/1eA | 1,000 h xenon; -30 °C Charpy | UV crack resistance and low-temperature ductility |
| Coolant overflow tank | ISO 16750-4, ASTM D638 | -30 °C to 80 °C cycling; weld-line tensile | Under-bonnet thermal stress and weld integrity |
| Cold-chain tote | ISO 12048 | -20 °C stacking | Returnable transport load |
| Appliance base frame | IEC 60335-1, UL 746B | Clause 30.2 glow-wire; RTI | Electrical safety and thermal ageing |
| Wheel-arch liner | SAE J2527 | 1,500 kJ/m² xenon arc with moisture | Exterior weathering |
| Cable management trough | ISO 6603-2 | 2 J at -10 °C | Low-temperature puncture impact |
Dimensional stability in washing machine base frames is assessed after parts are subjected to 90 °C deionised water for 500 h in a protocol aligned with IEC 60335-1 clause 30 for heat resistance. The PP copolymer provides sufficient structural integrity when rib wall thickness is maintained at 50% of the nominal wall to avoid sink marks. Injection pressure is set at 70 MPa to 90 MPa because the large projected area requires high pressure to prevent short shots at flow length-to-thickness ratios above 150:1. Mould temperature is kept at 30 °C to 40 °C. Higher mould temperatures improve surface gloss but increase cooling time by 10% to 12%. The base frame must survive a 25 kg unbalanced rotating load without crack initiation, a requirement validated through modal vibration testing rather than a single static tensile test. The material should not be used with acidic clean-in-place chemicals below pH 3 or alkaline cleaners above pH 11 because environmental stress cracking can occur in the rubber-modified matrix. The base frame integrates snap-fit features for the cabinet; these snap features are designed with a maximum strain of 2.5% to remain below the PP copolymer’s yield point. Hot-runner valve gates are used to control flow marks; sequential opening starts from the centre and moves outward. The grade does not carry a UL 94 V-0 certification. If the appliance requires flame-retardant enclosure ratings under IEC 60335-1 clause 30.2, a separate FR grade or FR additive package is required. Thermal ageing is additionally benchmarked against UL 746B relative thermal index data when the part is used in proximity to electrical connections.
If a converter substitutes Hifax TKC 220P C13098 for painted ABS in wheel-arch liners, the processing window shifts from an ABS melt temperature near 250 °C to a PP copolymer melt temperature between 220 °C and 240 °C. The tool can remain at 30 °C to 40 °C. Because PP copolymer has higher shrinkage than ABS, tool compensation of 1.5% to 2.0% is required in the flow direction; for ABS the tool allowance is typically 0.5%. The wheel-arch liner experiences stone impingement at temperatures below -20 °C during winter operation, so validation includes notched Charpy impact per ISO 179-1/1eA at -30 °C. Parts are also subjected to SAE J2527 weatherometer exposure for 1,500 kJ/m² to confirm no cracking after UV radiation. Moulded-in colour and low-gloss surface eliminate paint delamination, but the surface is more prone to scratch whitening than ABS. Textured mould surfaces of 25 µm to 35 µm arithmetic average roughness reduce visible whitening. The liner should not be installed within 10 mm of exhaust components because continuous service above 90 °C can cause local distortion. Post-mould warpage is controlled by holding the part in a cooling fixture for 30 s to 60 s after demoulding. The material performs under repeated impact from gravel, but sharp metallic edges from damaged body panels can cut the liner at thicknesses below 2 mm. Local bosses and mounting flanges are thickened to 3 mm for attachment. Impact-modification is incorporated in the reactor copolymer, so an added elastomer masterbatch is not required for this substitution.
Thin-wall cable management troughs made from Hifax TKC 220P C13098 require a melt temperature of 210 °C to 230 °C and a fast injection speed to fill flow paths of 2 mm wall thickness. The mould is cooled to 20 °C to 30 °C to achieve cycle times under 30 s. The material provides electrical insulation but does not provide a UL 94 V-0 flame retardancy rating. Trough sections are joined by snap-fit connectors; strain at the snap feature must remain below 2.0% during assembly at 0 °C to avoid cracking. Impact resistance is validated with a falling-dart test of 2 J at -10 °C according to ISO 6603-2. The product is intended for non-live cable management in raised floors, not for connection boxes carrying live terminals. Dimensional stability is checked after 48 h at 80 °C to confirm that snap-fit retention remains within 0.2 mm of as-moulded dimensions. The grade’s high flow allows 16-cavity family tools to be filled without warpage, but cavity-to-cavity fill imbalance must be controlled within 5% by runner sizing. Regrind use is capped at 15 wt% in thin-wall sections because surface streaks become visible above this level. The material should not be installed in direct contact with copper conductors that exceed 70 °C continuous service because long-term heat ageing can reduce impact resistance. Mould texture is limited to a maximum depth of 20 µm to maintain snap-fit dimensional accuracy.
| Application | Melt temperature | Mould temperature | Hold pressure | Regrind cap |
|---|---|---|---|---|
| Bumper fascia | 220–250 °C | 30–50 °C | 40–60 MPa | 20 wt% |
| Black exterior trim | 220–240 °C | 25–35 °C | 35–55 MPa | 20 wt% |
| Coolant overflow tank | 220–240 °C | 35–45 °C | 30–40 MPa | 15 wt% |
| Cold-chain tote | 220–250 °C | 20–40 °C | 35–45 MPa | 20 wt% |
| Appliance base frame | 220–240 °C | 30–40 °C | 70–90 MPa | 15 wt% |
| Wheel-arch liner | 220–240 °C | 30–40 °C | 40–60 MPa | 20 wt% |
| Cable management trough | 210–230 °C | 20–30 °C | 35–50 MPa | 15 wt% |
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In the landscape of high-impact polypropylene compounds, the designation Hifax TKC 220P C13098 identifies a tailored reactor-grade polypropylene copolymer within the LyondellBasell Hifax portfolio. This grade falls into the medium-to-high melt flow range, typically exhibiting a melt flow rate (MFR) between 20 and 30 g/10 min when assessed under ISO 1133-1:2022 at 230°C/2.16 kg. The “C13098” suffix is a manufacturer-specified additivation and coloration code denoting a pre-compounded, ready-to-mold material in which a specific color masterbatch and a stabilizer package are incorporated during the polymerization or finishing stage, eliminating the need for downstream dry-blending at the injection molder. This integrated color approach ensures lot-to-lot chromatic consistency with ΔE typically held below 1.0 versus a spectrophotometric standard, as measured per CIE L*a*b* under D65/10° conditions, provided the molding parameters remain within a prescribed thermal window.
Standard impact copolymer PP grades rely on a heterophasic structure where discrete ethylene-propylene rubber (EPR) domains are dispersed within a polypropylene homopolymer matrix. In Hifax TKC 220P, the EPR phase morphology is optimized via a multi-reactor process that controls rubber particle size distribution and interfacial adhesion. The result is a balance of stiffness and toughness that departs from simplistic trade-off curves. Notched Izod impact strength at 23°C per ISO 180/A routinely exceeds 30 kJ/m², while flexural modulus under ISO 178 remains above 1,200 MPa. This simultaneous retention of rigidity and cold-temperature ductility—ductile-to-brittle transition often suppressed below -30°C—contrasts sharply with random copolymers, where comonomer incorporation into the polymer backbone primarily reduces crystallinity and stiffness without creating a separate elastomeric phase. Homopolymer PPs of equivalent MFR, meanwhile, exhibit Izod values below 4 kJ/m², rendering them unsuitable for applications requiring energy absorption upon impact. The TKC 220P series further distinguishes itself through an additive formulation that enhances thermo-oxidative stability, enabling continuous service temperatures up to 110°C in air, as validated by long-term heat aging (LTHA) per UL 746B.
Molders accustomed to processing standard impact copolymers will note that the rheological behavior of Hifax TKC 220P C13098 imposes a narrower processing envelope. The presence of the pre-dispersed color concentrate alters the apparent viscosity profile; capillary rheometry data at 230°C indicate a shear-thinning index n (power-law) in the range 0.32–0.38 over shear rates from 100 to 1,000 s⁻¹. This high degree of pseudoplasticity means that injection velocities must be calibrated carefully: excessively low shear rates during mold filling lead to jetting and visible flow marks on pigmented surfaces, while shear rates above 10,000 s⁻¹ can induce localized heating sufficient to degrade the organic pigment system, causing shade drift and reduced UV resistance. Published data for this specific configuration regarding absolute pigment degradation kinetics at shear extremes is limited; however, process engineering teams on the floor often cap nozzle-end melt temperature at 245°C to preserve color fastness.
When processing Hifax TKC 220P C13098 on reciprocating-screw injection molding machines with screw diameters between 40 and 80 mm and L/D ratios of 20:1 to 24:1, the recommended melt temperature window spans 210°C to 240°C, with mold temperature set between 20°C and 60°C. At the lower end of the melt temperature range, the compound displays pronounced pressure-dependent viscosity, requiring specific injection pressure margins above the hydraulic system’s minimum. Holding pressure profiles must compensate for a volumetric shrinkage of approximately 1.4% to 1.8% during crystallization, a value typical for heterophasic copolymers with ethylene contents in the 8–12% range. Gate freeze-off time calculations using the equation tfreeze = (h² / (π² · α)) · ln(4/π · (Tmelt – Tmold)/(Tejection – Tmold)), with thermal diffusivity α assumed near 0.08 mm²/s, indicate that for a 1.5 mm wall thickness, the gate must remain open for at least 4.5 seconds to avoid sink marks. Sub-optimal gate sizing, particularly with tunnel or submarine gates below 1.0 mm diameter, introduces high pressure drops that can fractionate the rubber phase near the gate, producing a localized brittle region detectable as “gate blush” or reduced Gardner impact performance.
| Property | Test standard | Hifax TKC 220P C13098 (typical) | Standard impact copolymer PP (MFR 25) | PP random copolymer (MFR 25, 3% C2) | |
|---|---|---|---|---|---|
| Melt flow rate (230°C/2.16 kg) | ISO 1133-1 | 23 g/10 min | 25 g/10 min | 25 g/10 min | |
| Tensile yield stress | ISO 527-2 | 26 MPa | 24 MPa | 22 MPa | |
| Flexural modulus | ISO 178 | 1,250 MPa | 1,100 MPa | 900 MPa | |
| Notched Izod impact (23°C) | ISO 180/A | 35 kJ/m² | 20 kJ/m² | 6 kJ/m² | |
| Notched Izod impact (-20°C) | ISO 180/A | 8 kJ/m² | 4 kJ/m² | 2 kJ/m² | |
| Vicat softening point (A50) | ISO 306 | 148°C | 150°C | 140°C | |
| Density | ISO 1183-1 | 0.905 g/cm³ | 0.905 g/cm³ | 0.900 g/cm³ |
Certain automotive interior trim components, such as A-pillar covers, center console side panels, and seat belt surround housings, are manufactured with Hifax TKC 220P C13098 specifically because the pre-colored compound eliminates post-molding painting operations. This contributes to volatile organic compound (VOC) emission reduction in the cabin interior, a critical factor under VDA 278 thermodesorption analysis, where total VOC values below 100 µg/g are mandated by several OEM specifications. The stabilizer package built into the C13098 formulation includes a non-blooming hindered amine light stabilizer (HALS) system that resists photo-oxidative embrittlement under Xenon-arc accelerated weathering per ISO 4892-2. Component life under 1,500 kJ/m² exposure (at 340 nm) typically yields gloss retention above 70%, meeting interior durability requirements without the use of a surface coating.
Storage conditions prior to processing influence both mechanical consistency and surface aesthetics. While the base PP copolymer is inherently hydrophobic, the organic pigment and additive masterbatch components can absorb moisture during extended warehouse storage at relative humidity exceeding 65%. Although hydrolysis of the polymer backbone is not a concern, even trace moisture can cause splay or silver streaking on the surface of molded parts, particularly when mold temperatures are below 30°C. Pre-drying in a desiccant hopper dryer at 80°C for 2 to 4 hours to a residual moisture content below 0.02% is therefore standard operating procedure in humid geographical regions or during monsoon seasons. Operators who bypass this step and compensate by raising melt temperature often trigger the previously described color shift, creating a conflict between cosmetic acceptance and dimensional conformity.
The pre-integrated color system, while offering lean manufacturing benefits, introduces a supply-chain inflexibility: a single masterbatch lot failure in the upstream compounding process forces rejection of the entire batch of Hifax TKC 220P C13098, as the color cannot be economically stripped or reworked. This contrasts with natural-grade impact copolymers that are colored at the press via volumetric or gravimetric dosing, where the colorant is a separate stream and can be swapped without discarding base polymer. For manufacturers producing multicolored component families—e.g., interior trim parts offered in three or more colorways—inventory management of multiple C-code variants demands climate-controlled warehousing to prevent lot degradation. Furthermore, regrind recycling of C13098-colored sprues and runners can be implemented at up to 25% by weight with fresh material, but repeated heat histories accumulate to raise the yellowness index (YI, per ASTM E313) beyond 2.5 after the third reprocessing pass. This color drift, acceptable in non-visible undercarriage parts, becomes a reject criterion for Class A surface components.
| Regulation/Standard | Scope | Assessment Method |
|---|---|---|
| EU 10/2011 (as amended) | Food contact materials (if applicable) | Overall migration 10 mg/dm²; specific migration limits |
| FDA 21 CFR 177.1520 | Olefin polymers (indirect additive) | End-test and specified conditions of use |
| REACH (EC) 1907/2006 | Substances of Very High Concern (SVHC) | Candidate List screening 0.1% w/w threshold |
| RoHS 2011/65/EU (Recast) | Hazardous substances (Pb, Cd, Hg, Cr(VI), PBBs, PBDEs, DEHP, BBP, DBP, DIBP) | XRF screening; wet chemical verification per IEC 62321 |
| GADSL (Global Automotive Declarable Substance List) | Automotive prohibited/declarable substances | Supplier certification and ZVEI/OEM reporting |
In large-tonnage injection molding of components such as battery trays for mild-hybrid electric vehicles, the higher impact strength of Hifax TKC 220P C13098 relative to talc-filled PPs is exploited. The unfilled nature of this grade avoids the abrasive wear on screw and barrel assemblies that occurs when processing mineral-filled compounds, yet the long-flow characteristics (spiral flow length exceeding 90 cm at 1,000 bar injection pressure, 230°C, wall thickness 2 mm) permit molding of complex multi-ribbed geometries with lower clamping force requirements. Tonnages can be reduced by approximately 15–20% compared to glass-fiber reinforced grades of equivalent component stiffness, as the absence of fiber orientation effects minimizes anisotropic shrinkage and warpage, a persistent problem diagnosed via coordinate measuring machine (CMM) deviation analysis across production runs.
When electroplating or hot-foil stamping is to be applied to Hifax TKC 220P C13098 molded parts, the surface energy must be raised from its native 30 mN/m to at least 40 mN/m via corona, flame, or low-pressure plasma treatment. Untreated, the polyolefin substrate exhibits poor adhesion; tape tests per ISO 2409 show 100% coating removal. Plasma treatment with a DBD system at 300 W in an O₂/Ar mixture for 1.5 seconds typically yields a crosshatch adhesion rating of Gt 0-1, enabling subsequent metallization or bonding with polyurethane hot-melt adhesives. Production lines integrating in-line treatment units immediately before a printing station report a process capability index Cpk above 1.33 for adhesion quality, provided the treatment is applied within 30 minutes before downstream coating. Delays beyond this window see a decay in polar surface energy components, reintroducing latent bond failure risks.
Differences from other Hifax series products, such as the TKS or TYC ranges, center on the specific rubber morphology and the MFR bracket. TKC grades are designed for injection molding with excellent flow and impact balance, while TKS variants often serve thermoforming applications requiring higher melt strength and lower MFR (< 5 g/10 min). The C13098 pre-color selection, typically a deep black or charcoal gray, serves as a cosmetic identifier in the aftermarket for original equipment manufacturers who mandate a consistent visual signature across global production sites, with color tolerances archived under ISO 3668 visual comparison protocols and verified via multi-angle spectrophotometry (45° circumferential viewing).
Production-scale observations on single-screw extruders equipped with barrier screws for masterbatch letdown confirm that Hifax TKC 220P C13098 cannot be further diluted with natural resin without disrupting color dispersion; the pigment aggregation threshold is deliberately set at the compounded level. Any dilution by as little as 5% natural PP of different melt viscosity causes visible striping and hue non-uniformity under 5,000 lux inspection lighting. This limitation is documented in the supplier’s processing guide and precludes on-the-fly shade adjustment, a practice common with non-integrated coloring approaches.
