Melt-compounded polypropylene-rich TPE formulations designed for automotive interior skin layers incorporate Asahi Kasei Tuftec H1387 at 25–45 wt% alongside a polypropylene random copolymer at 20–35 wt% and a paraffinic or naphthenic process oil at 15–30 wt%; the hydrogenated ethylene-butylene midblock suppresses chain scission during compounding in a co-rotating twin-screw extruder with L/D 44:1. Barrel zones are set from 170°C at the feed throat to 220°C near the die plate, with screw speed held at 350–600 rpm depending on the oil-absorption capacity of the batch, while a water-ring pelletizer with die-face temperature of 200–230°C prevents pellet agglomeration. Compliance for automotive interior compounds falls under VDA 278:2011 for VOC and SVOC desorption, with typical targets below 100 µg/g VOC and 50 µg/g fogging mass, plus DIN 75201:2011 gravimetric fogging and ISO 3795:1989 horizontal burn rate. The compound is subsequently injection molded on machines with clamp force from 1,200 kN to 3,500 kN, melt temperature 190–230°C, and mold surface temperature 20–50°C; gate freeze-off must occur before pressure decay to prevent surface splay and flow marks on textured surfaces. Terminal finished product types include instrument-panel lower skins, door-trim insert mats, center-console soft-touch covers, HVAC knob sleeves, and overmolded PP substrate components. Published formulation data for H1387 in exact talc-filled automotive systems is limited; when talc loading exceeds 10 wt%, the H1387 fraction should be reduced toward the lower bound of the cited range to avoid melt-fracture defects at injection speeds exceeding 60 mm/s.

Hot-melt adhesive producers evaluating Tuftec H1387 as the styrenic block copolymer backbone for sprayable and slot-die coated pressure-sensitive adhesives load the polymer at 15–35 wt%, with a fully hydrogenated C9 or C5/C9 tackifying resin at 40–60 wt% and a paraffinic or naphthenic oil at 10–25 wt%; total melt viscosity at 180°C measured by ASTM D3236-88(2014) determines the upper H1387 loading because formulations exceeding 35 wt% polymer can surpass 15,000 mPa·s in slot-die equipment and produce edge-bead instability. Production-scale batches are compounded in sigma-blade or planetary roller mixers at 150–180°C under vacuum, then transferred through heated recirculation lines to a slot-die coater running at 15–80 m/min; line operators report that cold spots below 140°C increase gel formation in SEBS hot melts, requiring temperature control within ±3°C. For food-contact indirect packaging applications, the final adhesive must satisfy FDA 21 CFR 175.105 for pressure-sensitive adhesive components and, where relevant, EU 10/2011 migration limits for multilayer laminates; REACH Regulation EC 1907/2006 SVHC declarations and supplier SDS data for target organ toxicity are standard prerequisites in B2B purchase specifications. Terminal finished product types include repositionable label adhesives, hygiene disposable laminate adhesives, automotive trim bonding tapes, and nonwoven attachment adhesives in diaper chassis and adult incontinence assembly. Published data for H1387-specific peel and shear profiles at the stated addition levels is limited; each converter must run ASTM D903-98(2017) peel and ASTM D3654-06(2019) shear trials on the selected facestock because liner interactions and coat weight influence the failure mode.

In glass-fiber–reinforced polypropylene recycling streams, the addition of 5–15 wt% Tuftec H1387 to post-industrial PP regrind raises notched Izod impact values measured by ISO 180:2023 from brittle values below 3 kJ/m² to ductile values above 8 kJ/m², provided the recycled PP melt flow rate is between 15 and 35 g/10 min at 230°C/2.16 kg per ISO 1133-1:2022. The compounding line is a co-rotating twin-screw extruder with L/D 40:1; H1387 is fed at the main throat with PP regrind, temperature zones are held at 200–230°C, and a side feeder introduces 10–20 wt% chopped glass fiber at zone 7. Process troubleshooting in such lines identifies screw wear at the side-fed glass-fiber injection point as the dominant cause of batch-to-batch viscosity drift; nitrided barrel sections and 60° kneading blocks reduce drift to less than 5% MFI change over 100 batches. The final compound must meet REACH Regulation EC 1907/2006 restrictions for polycyclic aromatic hydrocarbons in extender oils, RoHS 2011/65/EU as amended by EU 2015/863 for lead, cadmium, mercury, hexavalent chromium, PBB, PBDE and four restricted phthalates at 0.1 wt% homogeneous material thresholds, and relevant OEM recycled-content specifications where ISO 22628:2002 road vehicle recyclability calculations are required. Injection molding of the modified regrind uses melt temperature 200–230°C and clamp force from 1,000 kN to 4,000 kN depending on part size. Terminal finished product types include wheel-arch liners, underbody panels, internal-combustion engine battery brackets, storage bin walls, and appliance base frames where post-industrial recycled content is permitted. Published data for H1387 in high-glass recycled PP at the lower addition bound is limited; processors should not exceed 15 wt% when glass loading exceeds 25 wt% because excessive SEBS can lower tensile yield strength below 25 MPa in ASTM D638-14 Type I specimens.

Low-smoke halogen-free cable jacket compounds based on ethylene-vinyl acetate or linear low-density polyethylene incorporate Tuftec H1387 at 10–20 phr as a midblock modifier to restore elongation at break after high loadings of aluminum trihydroxide and magnesium dihydroxide, which normally reduce extensibility to less than 150% in ISO 527-2:2012 Type 5 tensile specimens. The production-scale mixing sequence uses a kneader or co-rotating twin-screw extruder with L/D 44:1; flame-retardant filler is added by side feeder at 150–180°C after the polymer phase is melted, and extruder torque is kept below 90% of gearbox rating to avoid shear-induced release of hydration water from the metallic hydroxide fillers. The compounding section is maintained below 200°C because magnesium dihydroxide decomposition onset can occur between 190°C and 220°C depending on particle size and surface coating; this thermal boundary makes SEBS a technically relevant modifier only when the flame-retardant system is surface-stabilized. Cable jacket compounds must meet IEC 60754-1:2011 for halogen acid gas content, IEC 60754-2:2011 for pH and conductivity, IEC 60684-2:2011 for flexible insulating sleeving where applicable, and ISO 6722:2022 for 60 V/600 V automotive cables when extruded onto copper conductors. Jacket extrusion uses a single-screw extruder with L/D 25:1 to 30:1 and compression ratio 2.5:1 to 3.5:1, melt temperature 160–190°C, and crosshead die temperature 170–200°C; feed-zone screw cooling prevents pre-crosslinking from residual moisture. Terminal finished product types include automotive low-voltage battery management system cables, industrial motor leads, control cabinet wiring with UL 62 recognition, and portable EV charging cable jackets where halogen-free specifications are contractual. Published data for H1387 in low-smoke halogen-free cable jacket formulations is more limited than for dedicated SEBS/EVA grades; compounders must verify tensile strength at break, elongation at break, and heat aging per ISO 6722:2022 before substituting into a qualified formulation.

Processors producing soft-touch overmolded grips on glass-filled nylon substrates dilute Tuftec H1387 into a TPE compound at 30–50 wt%, with polypropylene at 15–25 wt% and a paraffinic white oil at 15–30 wt%; Shore A hardness measured by ASTM D2240-15 typically falls between 45 A and 70 A, and the addition of 5–10 wt% maleic anhydride-grafted polyolefin improves adhesion to the nylon substrate when bond strength is evaluated by VDI 2019:2018. The overmolding process uses a two-shot injection molding cell with a first barrel for the rigid substrate at 260–290°C and a second barrel for the H1387 compound at 190–230°C; the rotating platen mold surface temperature is held at 40–70°C to promote interfacial entanglement without distorting the nylon core. Chemical resistance of the final assembled part is evaluated against sunscreen, isopropyl alcohol, and artificial sweat by DIN EN ISO 105-E04:2013 or the automotive OEM’s internal methods; REACH Regulation EC 1907/2006 and RoHS 2011/65/EU Annex II restrictions are standard B2B purchase declarations for consumer-facing hand tools. When sold into toys or repeated food-contact handles, the compounder must also confirm compliance with EN 71-3:2019+A1:2021 heavy metal migration limits or FDA 21 CFR 177.2600 for rubber articles; the selected pigment masterbatch cannot contain azo colorants restricted by Annex XVII Entry 43 of REACH. Terminal finished product types include cordless drill overmolded handles, rechargeable toothbrush bodies, personal-care razor grips, kitchen tool handles with rigid PP cores, and robotic vacuum bumper skins. Published data for H1387 in exact nylon overmolding bond-strength configurations is limited; adhesion promoter addition and nylon surface roughness from chemical etching are required to achieve cohesive failure in VDI 2019:2018 pull-off tests, and the absence of such promoters commonly yields interfacial delamination.

Extrusion-grade TPE film for pharmaceutical unit-dose packaging and medical device overwrap presents a stricter qualification path than industrial sheet because the final compound must pass ISO 10993-5:2009 cytotoxicity, ISO 10993-10:2010 skin sensitization, and ISO 10993-11:2017 systemic toxicity assessments; whether a USP Class VI master file is available for Tuftec H1387 must be confirmed with the supplier because converters frequently generate their own biological evaluation and leachables profile. In this segment, H1387 is added at 20–35 wt% within a TPE compound containing polypropylene at 15–25 wt%, white oil at 15–25 wt%, and a clarifying masterbatch at 1–3 wt%; the use of low-odor, low-SVOC process oil is mandatory to avoid leachable failures in the finished multilayer structure. Film production is performed on a single-screw or twin-screw extruder feeding a flat die with a barrel temperature profile of 180–220°C, chrome-polished chill rolls at 20–40°C, and a downstream corona treater at 0.5–2.0 kW to raise surface energy above 38 mN/m for lamination or printing. Heat-seal strength is tested by ASTM F88/F88M-21 at seal-bar temperatures of 110–140°C, while burst strength is verified per ASTM F2054/F2054M-17; for pharmaceutical packaging, EU 10/2011 and FDA 21 CFR 177.2600 may apply to the final multilayer structure, along with the drug product’s stability protocol at 40°C/75% RH. The operational boundary includes predrying at 80°C for 2 h in a desiccant dryer when the raw material has been stored at relative humidity above 60%, because residual surface moisture can cause flow marks and seal voids. Terminal finished product types include unit-dose pharmaceutical blister lidding membranes, medical device overwrap films, breathable patch backing layers, and secondary pouches for sterilizable devices, provided the manufacturing facility maintains ISO 13485:2016 quality systems and ISO 14644-1 cleanroom classification appropriate to the device class. Published data for H1387 in pharmaceutical-grade film is limited; qualification loads, seal strength, and migration data are frequently proprietary to the converter and must be generated on the intended film line.