170-220℃ Expandable Polymer Microspheres CAS 38742-70-0 are lightweight physical foaming fillers specially designed for TPE and TPV materials. Within 170–220 ℃ processing range, microspheres expand evenly to form fine closed-cell structure inside thermoplastic elastomers. It effectively reduces density and cuts raw material costs while retaining good elasticity, flexibility and compression resilience of TPE/TPV products. Featuring moderate heat resistance, excellent compatibility with elastomer

Product Detail

170-220℃ Expandable Polymer Microspheres CAS 38742-70-0 TPE TPV Foaming Lightweight Filler

Product Overview

170-220℃ Expandable Polymer Microspheres CAS 38742-70-0 are professional physical foaming and lightweight fillers exclusively optimized for TPE and TPV thermoplastic elastomer processing. Designed to perfectly match the conventional molding temperature window of elastomer materials, the microspheres achieve stable and uniform thermal expansion within 170–220℃. They form fine, dense and independent closed-cell structures inside TPE/TPV substrates, effectively reducing product density and realizing lightweight modification. The product greatly lowers raw material consumption and production costs while completely preserving the original elasticity, flexibility, compression resilience and soft touch of elastomer products. Featuring excellent material compatibility, uniform dispersion, stable batch foaming performance and low defect rate, it is a high-quality functional foaming additive for lightweight TPE and TPV products.

Core Features

Perfect Temperature Adaptation for TPE/TPV Processing: Customized 170–220℃ expansion temperature window fully fits conventional extrusion, injection and calendaring processes of thermoplastic elastomers. No premature foaming or cell collapse during processing, ensuring stable and controllable foaming effect.

Retain Original Elastomer Flexibility: The uniform closed-cell foaming structure does not damage the molecular elasticity of TPE and TPV materials. It maintains excellent softness, tensile property and compression recovery, avoiding hardening or brittle problems caused by traditional foaming agents.

Efficient Lightweight & Cost Reduction: Dense micro closed cells effectively reduce product weight and material density. It significantly saves raw material dosage, reduces overall production cost, and improves product floating performance and portability.

Excellent Elastomer Compatibility & Dispersion: Ultra-fine polymer microsphere powder disperses evenly in TPE/TPV melt systems without agglomeration or precipitation. It will not cause surface bubbles, pits, streaks or other appearance defects, ensuring smooth and delicate product surface.

Improve Dimensional Stability: Effectively relieves internal stress of elastomer products during thermal processing, inhibits shrinkage, warping and deformation after molding, and improves product flatness and dimensional accuracy.

Eco-Friendly Physical Foaming System: Adopts pure physical thermal expansion principle, no chemical decomposition, no harmful residues, low odor and low VOC. It meets environmental protection requirements for daily elastomer products, automotive soft parts and contact materials.

Product Specifications

Product Name: 170-220℃ Expandable Polymer Microspheres

CAS No: 38742-70-0

Product Type: TPE/TPV Foaming Agent, Elastomer Lightweight Functional Filler

Foaming Temperature Range: 170℃–220℃

Appearance: White Ultra-Fine Powder

Applicable Materials: TPE, TPV and other thermoplastic elastomer composite materials

Applicable Processes: Elastomer extrusion, injection molding, calendaring and continuous foaming production

Core Function: Elastomer foaming, lightweight modification, density reduction, cost saving, appearance optimization

Recommended Dosage: 1.0%–3.5% (Adjustable according to lightweight degree and softness requirements)

Application Scope

Widely used in lightweight foaming modification of various TPE and TPV thermoplastic elastomer products. Suitable for automotive soft rubber parts, household elastomer accessories, sealing strips, flexible hoses, shock-absorbing elastomer parts, wearable soft materials and industrial elastic profiles. It solves the problems of heavy weight, high material consumption and poor floating performance of traditional solid elastomer products, covering automobile, daily necessities, industrial equipment and other fields.

Usage Guide

Mix expandable polymer microspheres evenly with TPE/TPV raw materials by low-speed stirring at room temperature. Avoid high-speed shear stirring and long-term high-temperature preheating to prevent microsphere rupture and premature foaming. After uniform dispersion, carry out conventional elastomer injection, extrusion or calendaring production. Complete stable thermal expansion and closed-cell forming during 170–220℃ processing. Adjust microsphere dosage, processing temperature and production speed appropriately according to target lightweight standard and product surface requirements. Keep sealed and moisture-proof during production and storage.

Packaging & Storage

Packaging: 25kg sealed moisture-proof composite bag with inner PE liner, dust-proof and leak-proof, suitable for industrial bulk supply and long-distance transportation.

Storage: Store in a dry, cool and ventilated warehouse, keep tightly sealed at all times. Avoid direct sunlight, high-temperature stacking and humid environment to prevent microsphere caking and spontaneous foaming. The standard shelf life is 12 months under qualified storage conditions.

Our Advantages

Our 170-220℃ expandable polymer microspheres are professionally customized for TPE and TPV elastomer systems, with accurate temperature matching, stable expansion ratio and excellent dispersion performance. The product can form uniform and delicate closed-cell structure, realizing efficient lightweight and cost reduction while retaining the excellent elasticity and soft touch of elastomer products. We support factory direct sales, long-term stable bulk supply, free sample testing and professional TPE/TPV foaming formula technical support to help customers optimize product performance and reduce production costs.

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.