Super High Temp Expandable Microspheres CAS 38742-70-0 are high-performance physical foaming and lightweight additives for high-performance polymers. The microspheres maintain stable expansion under extreme high-temperature processing conditions and form fine closed-cell structures inside polymer matrix. They achieve effective lightweighting and lower raw material costs while preserving outstanding mechanical strength, thermal stability and dimensional accuracy of polymer components. Featuring e

Product Detail

Super High Temp Expandable Microspheres CAS 38742-70-0 High Performance Polymer Lightweight Additive

Product Overview

Super High Temp Expandable Microspheres CAS 38742-70-0 are premium physical foaming and lightweight additives developed for various high-performance polymers. Engineered to endure extreme high-temperature molding environments, these microspheres retain intact particle morphology and deliver consistent expansion effect under rigorous processing conditions. Uniform, dense and independent closed-cell structures are formed within polymer matrix, effectively reducing component density and cutting raw material consumption. While realizing lightweight modification, the product maintains excellent mechanical strength, thermal stability and precise dimensional performance required for high-end polymer products. With outstanding heat resistance, strong shear resistance and broad compatibility with multiple resin systems, it serves as an all-purpose high-performance foaming filler for automotive, electronics and industrial precision plastic components.

Core Features

Outstanding Ultra-High Temperature Stability

Specially optimized shell structure provides reliable thermal tolerance. Microspheres expand evenly without premature foaming, particle rupture or cell collapse during high-temperature processing, supporting continuous automated mass production.

Excellent High Shear Resistance

Enhanced particle toughness withstands intense shear force during high-speed injection and extrusion. Low breakage rate minimizes surface defects such as silver streaks, pits and uneven foaming, satisfying strict appearance standards of precision polymer parts.

Efficient Lightweight & Cost Optimization

Fine closed-cell structure achieves stable weight reduction. It lowers material usage and overall production costs without sacrificing rigidity, heat resistance and other core properties of polymer finished products.

Wide Compatibility with Polymer Materials

Disperses uniformly in numerous thermoplastics and modified engineering plastics without agglomeration. It will not impair material toughness, surface gloss, coating adhesion or secondary processing performance.

Improved Dimensional Consistency

Uniform foaming structure relieves internal stress generated during molding, effectively inhibiting shrinkage, warpage and deformation. Greatly boosts yield rate for high-precision polymer components.

Environmentally Friendly Physical Foaming System

Works based on pure physical thermal expansion mechanism, no chemical decomposition, low odor and low VOC. Complies with mainstream environmental standards for automotive interior materials and electronic contact parts.

Product Specifications

Product Name: Super High Temp Expandable Microspheres

CAS No: 38742-70-0

Product Type: High Performance Polymer Foaming Agent, Lightweight Functional Additive

Appearance: White Ultra-Fine Powder

Applicable Processes: High-temperature injection molding, extrusion molding

Applicable Materials: Multiple engineering plastics, modified polymers and high-performance thermoplastics

Core Function: Polymer foaming, lightweight modification, density reduction, raw material cost control

Recommended Dosage: 1.2%–4.0% (Adjust according to lightweight target and component performance requirements)

Application Scope

Suitable for lightweight foaming modification of various high-performance polymers. Widely applied in automotive plastic components, electronic precision housings, industrial structural plastic parts, modified plastic particles and high-end consumer plastic products. It addresses the pain points of heavy weight, high material consumption and poor dimensional stability of solid polymer parts, covering automobile, electronics, new energy and industrial manufacturing industries.

Usage Guide

Mix super high temp expandable microspheres with polymer raw materials evenly by low-speed stirring at room temperature. Avoid high-intensity shear stirring and long-time high-temperature preheating to prevent microsphere rupture and premature foaming. Adopt standard injection or extrusion process parameters. Microspheres complete stable thermal expansion and closed-cell formation under matched processing temperature. Adjust microsphere dosage, molding temperature, injection speed and holding pressure according to lightweight targets and surface quality 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 dry, cool and ventilated warehouse, keep tightly sealed at all times. Avoid direct sunlight, high-temperature stacking and humid environment to prevent caking and spontaneous foaming. Standard shelf life is 12 months under proper storage conditions.

Our Advantages

Our super high temp expandable microspheres feature excellent heat resistance, stable expansion ratio and consistent batch quality. Uniform delicate closed-cell structure realizes efficient lightweight and cost reduction while securing mechanical performance and surface quality of polymer products. We support factory direct sales, stable bulk supply, free sample testing and professional foaming formula technical guidance to help customers enhance product competitiveness.

Previous : CAS 38742-70-0 230-250℃ Thermoexpandable Microspheres PBT PET Injection Molding Blowing Agent Next : Heat Resistant Expanding Microspheres CAS 38742-70-0 Engineering Thermoplastic Foaming Agent 240℃ Max

Copy product links

Long by picture save/share

Add Successfully

Continue To Visit Inquiry Now