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Thermoplastic elastomer (TPE) formulation with excellent processability via injection molding and extrusion.
Complies with FDA 21 CFR §177.2600 for food-contact applications and meets EU Regulation (EC) No. 1935/2004.
Low compression set and high resilience for durable sealing and gasketing performance.
Good resistance to UV, ozone, and common household chemicals.
Halogen-free and RoHS-compliant, supporting sustainable manufacturing requirements.
Food-grade appliance seals and gaskets for refrigerators, dishwashers, and coffee makers.
Soft-touch overmolding on consumer electronics housings and control knobs.
Medical device components requiring biocompatibility and sterilization compatibility (e.g., steam autoclave).
Automotive interior trim seals and vibration-damping bushings.
Reusable packaging closures and child-resistant caps.
| Chemical Type | Styrenic Block Copolymer (SBC)-based Thermoplastic Elastomer |
| Product Form | Pellets |
| Appearance | Translucent, light amber granules |
| Shore A Hardness | 40 ± 2 |
| Density | 0.90–0.92 g/cm³ |
| Melt Flow Rate (230°C/2.16 kg) | 18–22 g/10 min |
| Primary Applications | Seals, gaskets, soft-touch overmolding, food-contact parts |
| Key Features | FDA-compliant, halogen-free, excellent melt stability, low odor |
Q1: What is API DT 40/CL1 TPE primarily used for?
A: API DT 40/CL1 TPE is a thermoplastic elastomer designed as a processing aid and rheology modifier in thermoplastic compound formulations—especially where improved melt flow, reduced extrusion pressure, or enhanced surface finish is required in final molded or extruded parts.
Q2: Is API DT 40/CL1 TPE compatible with common engineering thermoplastics?
A: Yes—it demonstrates good compatibility with polyolefins (e.g., PP, HDPE), styrenics (e.g., PS, ABS), and certain polyesters. Compatibility should be verified experimentally in the target polymer matrix, as performance may vary depending on base resin polarity, molecular weight, and thermal history.
Q3: How is API DT 40/CL1 TPE typically incorporated into formulations?
A: It is generally introduced during compounding—either via side-feeding in twin-screw extrusion or pre-blended with the base polymer—using standard melt-processing equipment. Dosage depends on formulation requirements but typically ranges from 0.1% to 2% by weight for most functional improvements.
Q4: Does API DT 40/CL1 TPE affect the mechanical properties of the final compound?
A: At typical use levels, it generally maintains or slightly modifies tensile strength and elongation—often improving impact resistance and flexibility without significantly compromising stiffness. Significant property shifts may occur at higher loadings, so optimization through small-scale trials is recommended.
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E-mail: wangxingqiang@ericwchem.com
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