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Thermoplastic elastomer (TPE) formulation with excellent processability via injection molding and extrusion.
Halogen-free and RoHS-compliant, meeting stringent environmental and regulatory requirements for global markets.
Good thermal stability up to 150 °C short-term, enabling reliable performance in moderate-temperature applications.
Outstanding flexibility and resilience with Shore A hardness of 20, providing soft-touch feel and compression recovery.
Compatible with polypropylene (PP) and polyethylene (PE) substrates for co-injection and overmolding processes.
Soft-grip overmolding for hand tools, power tool housings, and ergonomic consumer appliances.
Sealing components including gaskets, caps, and vibration-damping bushings in automotive interiors.
Medical device grips and non-sterile housing components requiring biocompatibility support (ISO 10993-5 tested).
Packaging closures and squeezable containers demanding tactile feedback and recyclability.
Industrial hose covers and protective cable jacketing where flexibility and abrasion resistance are critical.
| Chemical Type | Thermoplastic Elastomer (TPE) — Styrenic Block Copolymer (SBC)-based |
| Product Form | Natural color pellets, free-flowing, dry-blend ready |
| Appearance | Off-white, translucent granules |
| Shore A Hardness | 20 ± 3 |
| Melt Flow Rate (230 °C / 2.16 kg) | 18–22 g/10 min |
| Density | 0.92–0.94 g/cm³ |
| Primary Applications | Overmolding, soft-touch components, sealing, damping |
| Key Features | Halogen-free, PP/PE adhesion, low-temperature flexibility (down to –40 °C) |
Q1: What is the primary function of API DT 20/CL1 TPE in polymer formulations?
A: API DT 20/CL1 TPE functions as a thermoplastic elastomer modifier, enhancing flexibility, impact resistance, and melt-processability in rigid thermoplastic matrices—particularly polypropylene and polyethylene blends.
Q2: Is API DT 20/CL1 TPE compatible with food-contact or medical-grade polymers?
A: While API DT 20/CL1 TPE is formulated for broad compatibility in industrial and consumer applications, it is not pre-qualified for regulated food-contact or medical device use. End-use compliance requires full formulation-level testing and regulatory validation by the compounder or end user.
Q3: How does API DT 20/CL1 TPE differ from conventional TPEs in processing behavior?
A: API DT 20/CL1 TPE exhibits lower melt viscosity and improved thermal stability during extrusion and injection molding compared to many styrenic or thermoplastic vulcanizate-based TPEs, enabling faster cycle times and reduced shear degradation in high-output operations.
Q4: What are typical dosage ranges when incorporating API DT 20/CL1 TPE into PP-based compounds?
A: Dosage generally ranges from 0.1% to 2% by weight depending on the target balance of stiffness, toughness, and surface finish—lower loadings often suffice for minor impact enhancement, while higher levels support demanding flexible-hinge or overmolding applications.
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