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Thermoplastic elastomer (TPE) formulation offering excellent processability via injection molding and extrusion.
Good low-temperature flexibility with a typical brittle point below −40 °C.
Enhanced resistance to UV exposure and long-term thermal aging compared to conventional SEBS-based TPEs.
Low extractables profile, supporting compliance with FDA 21 CFR §177.2600 for incidental food contact applications.
Smooth surface finish and high gloss retention after processing, ideal for premium consumer-facing components.
Soft-touch overmolding for power tools, medical device housings, and handheld electronics.
Seals and gaskets in automotive interior trim and HVAC systems.
Flexible grips and ergonomic handles for industrial and consumer appliances.
Non-slip components for personal care devices and fitness equipment.
Replacement material for PVC and TPV in applications requiring recyclability and halogen-free composition.
| Chemical Type | Styrenic thermoplastic elastomer (SEBS-based) |
| Product Form | Pellets (free-flowing, cylindrical) |
| Appearance | Off-white to light beige, homogeneous granules |
| Density (ASTM D792) | 0.98–1.02 g/cm³ |
| Hardness (Shore A, ASTM D2240) | 40 ± 3 |
| Melt Flow Rate (200 °C/5 kg, ASTM D1238) | 12–18 g/10 min |
| Tensile Strength (ASTM D412) | 8–10 MPa |
| Elongation at Break (ASTM D412) | 450–550 % |
Q1: What is the primary function of API ESC 40 TPE in polymer formulations?
A: API ESC 40 TPE functions as a high-performance thermal stabilizer and processing aid for thermoplastic elastomers, particularly in styrenic and olefinic systems. It helps maintain melt stability, reduce degradation during extrusion or injection molding, and supports consistent color retention under elevated temperatures.
Q2: Is API ESC 40 TPE compatible with common food-contact or medical-grade TPE compounds?
A: API ESC 40 TPE is formulated to meet general regulatory expectations for indirect food-contact applications and is suitable for use in medical-grade TPEs where thermal stability and low volatility are critical. Final compliance depends on full formulation assessment and end-use validation by the compounder or device manufacturer.
Q3: How should API ESC 40 TPE be incorporated into a TPE compound?
A: It is typically introduced during the masterbatch stage or direct compounding via twin-screw extrusion. Good dispersion is achieved at standard melt processing temperatures, and it is recommended to avoid prolonged residence time at peak temperature to preserve efficacy.
Q4: Does API ESC 40 TPE affect the mechanical properties or surface appearance of finished TPE parts?
A: When used within recommended dosage ranges, API ESC 40 TPE has minimal impact on tensile strength, elongation, or hardness. It does not cause blooming or hazing and supports clean surface finish and good gloss retention in final molded parts.
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