Excellent soft-touch feel with Shore A 45 hardness for ergonomic handling and user comfort.
Outstanding adhesion to polypropylene (PP) and polyethylene (PE) without primers or surface treatment.
Good resistance to UV exposure and long-term thermal aging up to 70 °C continuous service temperature.
Low extractables and compliant with FDA 21 CFR §177.2600 for food-contact–compatible applications.
High melt flow index (MFI ≈ 12 g/10 min @ 230 °C/2.16 kg) enabling efficient injection molding and overmolding.
Overmolded grips for power tools, garden equipment, and hand-held industrial devices.
Seals and gaskets in white goods and HVAC components requiring flexibility and compression set resistance.
Soft-touch control panels and interface elements in automotive interior trim.
Food-grade appliance components such as blender handles, juicer lids, and mixer accessories.
| Chemical Type | Thermoplastic Elastomer (TPE), PP-based thermoplastic vulcanizate (TPV) |
| Product Form | Natural color pellets, free-flowing, standard 3 mm diameter |
| Appearance | Opaque off-white granules with uniform size distribution |
| Shore A Hardness | 45 ± 3 |
| Melt Flow Index (MFI) | 12 g/10 min (230 °C / 2.16 kg) |
| Continuous Use Temperature | Up to 70 °C |
| Key Features | PP/PE adhesion, soft-touch, UV-stabilized, low extractables |
| Compliance | FDA 21 CFR §177.2600, RoHS 2015/863/EU, REACH SVHC-free |
Q1: What is the primary function of Kraiburg HTC0459/71 in TPE formulations?
A: Kraiburg HTC0459/71 is a high-performance processing aid and flow enhancer specifically designed for thermoplastic elastomer compounds. It improves melt homogeneity, reduces extrusion torque, and supports consistent dispersion of fillers and additives during compounding and injection molding.
Q2: Is HTC0459/71 compatible with common TPE base polymers such as SEBS, TPE-S, and TPE-V?
A: Yes, HTC0459/71 demonstrates broad compatibility with styrenic block copolymers (e.g., SEBS), thermoplastic vulcanizates (TPVs), and other polar/non-polar TPE matrices. Its balanced polarity allows stable integration without phase separation or adverse effects on mechanical properties when used within recommended dosage ranges.
Q3: How does HTC0459/71 affect surface appearance and gloss in finished TPE parts?
A: When incorporated at typical levels, HTC0459/71 contributes to improved surface smoothness and uniform gloss by promoting better melt flow and reducing die-line defects or flow marks. It does not inherently cause blooming or haze under standard processing conditions.
Q4: Can HTC0459/71 be used in applications requiring food-contact compliance?
A: HTC0459/71 is formulated without intentionally added heavy metals, phthalates, or known allergens. While it is not pre-certified for food contact, its composition supports potential evaluation for regulatory compliance—final suitability depends on full formulation assessment and end-use testing per applicable regional requirements.
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