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Optimized for injection molding (IM) with excellent melt flow and low viscosity at processing temperatures.
Delivers high abrasion resistance and exceptional mechanical toughness across a wide service temperature range.
Offers outstanding clarity and colorability, supporting premium aesthetic requirements in consumer-facing applications.
Provides inherent hydrolysis resistance suitable for humid or wet-environment applications without requiring additional stabilizers.
Complies with FDA 21 CFR §177.1680 for indirect food contact and meets ISO 10993-5 cytotoxicity requirements.
Medical device housings and ergonomic grips for handheld diagnostic equipment.
Consumer electronics casings, including smartwatch bands and protective phone cases.
Automotive interior trim components such as soft-touch buttons, knobs, and gear shift boots.
High-performance sporting goods parts, including vibration-dampening grips and wearable sensor enclosures.
Industrial tool overmolding for power tools requiring chemical resistance and impact absorption.
| Chemical Type | Aliphatic polyester-based thermoplastic polyurethane (TPU) |
| Product Form | Pellets |
| Appearance | Natural, translucent pellets |
| Primary Applications | Injection molding of precision elastomeric components |
| Key Features | Hydrolysis resistant, low extractables, FDA-compliant, IM-optimized rheology |
| Processing Temperature Range | 180–210 °C (recommended melt temp) |
| Density (ASTM D792) | 1.18–1.20 g/cm³ |
| Hardness (Shore A, ASTM D2240) | 85 ± 2 |
Q1: What is the primary function of Lubrizol 58315 NAT 029/033 IM in TPU formulations?
A: Lubrizol 58315 NAT 029/033 IM is a specialized internal mold release additive designed to improve demolding efficiency and surface finish in thermoplastic polyurethane (TPU) injection molding applications. It reduces part sticking and ejection force without compromising mechanical integrity or clarity.
Q2: Is this additive compatible with all TPU chemistries (e.g., polyester-, polyether-, and polycaprolactone-based)?
A: Lubrizol 58315 NAT 029/033 IM demonstrates broad compatibility across common TPU types, including polyester-, polyether-, and polycaprolactone-based systems. Performance optimization may vary depending on polymer polarity and processing conditions, so formulation-specific evaluation is recommended.
Q3: How does Lubrizol 58315 NAT 029/033 IM affect the long-term physical properties of TPU parts?
A: When used within recommended dosage ranges, this additive maintains key performance attributes such as tensile strength, elongation, and abrasion resistance. It is engineered for minimal impact on thermal stability and long-term aging behavior under typical service conditions.
Q4: Can Lubrizol 58315 NAT 029/033 IM be used in transparent or color-sensitive TPU applications?
A: Yes — it is formulated to support optical clarity and low haze in transparent TPU grades and exhibits excellent color stability. It does not interfere with pigment dispersion or cause yellowing during standard melt processing.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
