110-160℃ Thermoexpandable Microspheres CAS 38742-70-0 serve as dedicated foaming additives for automotive underbody coating. Microspheres expand uniformly within 110-160℃ heating range to form stable closed-cell structure inside chassis coating layers. It delivers excellent noise reduction, heat insulation and shock absorption performance, lowers coating density and improves anti-corrosion effect. Featuring good compatibility with solvent-based and waterborne underbody coating systems, stable fo

Product Detail

110-160℃ Thermoexpandable Microspheres CAS 38742-70-0 Automotive Underbody Coating Foaming Agent

Product Overview

110-160℃ Thermoexpandable Microspheres CAS 38742-70-0 are professional physical foaming agents customized for automotive underbody coating systems. With a precise thermal expansion window of 110-160℃, the microspheres expand evenly and stably during coating curing, forming continuous, fine and closed-cell structures inside the chassis coating layer. This effectively reduces coating density, achieves lightweight modification, and significantly improves noise reduction, heat insulation, cushioning and anti-corrosion performance of automotive underbody protective coatings. The product features excellent compatibility with both water-based and solvent-based coating formulations, stable foaming consistency and outstanding long-term weather resistance. It is a reliable functional additive for high-performance automotive chassis protective coatings.

Core Features

Precise 110-160℃ Foaming Window: Specially tailored for automotive coating curing temperature range. Microspheres expand fully and uniformly without rupture or insufficient foaming, matching standard automotive underbody coating production processes perfectly.

Multi-Functional Protection Performance: Uniform closed-cell structure endows the coating with excellent sound absorption and noise reduction, effective heat insulation and buffer shock resistance. It greatly improves chassis driving comfort and road noise isolation effect.

Enhanced Anti-Corrosion & Weather Resistance: Dense foamed layer effectively isolates moisture, dust and corrosive substances. It improves the coating’s durability, anti-aging and weather resistance, extending the service life of automobile chassis.

Lightweight & Cost-Effective: Reduces overall coating density and raw material consumption without weakening protective performance. It realizes lightweight chassis modification and lowers overall production costs for automotive coating manufacturers.

Excellent Coating System Compatibility: Ultra-fine powder disperses evenly in water-based and solvent-based underbody coatings. No agglomeration, no surface defects, and no negative impact on coating adhesion, leveling and drying performance.

Stable Industrial Batch Performance: Consistent particle size and stable expansion ratio ensure uniform foaming effect in large-batch production. It maintains stable coating appearance and physical properties with low defective rate.

Product Specifications

Product Name: 110-160℃ Thermoexpandable Microspheres

CAS No: 38742-70-0

Product Type: Automotive Underbody Coating Foaming Agent / Lightweight Functional Filler

Foaming Temperature Range: 110℃–160℃

Appearance: White Ultra-Fine Powder

Applicable System: Water-based / Solvent-based automotive underbody coatings, chassis protective coatings

Core Function: Coating foaming, density reduction, noise reduction, heat insulation, anti-corrosion improvement

Recommended Dosage: 1.0%–3.5% (Adjustable according to foaming and protection requirements)

Application Scope

Mainly applied in foaming modification and functional upgrading of various automotive underbody protective coatings. Widely suitable for automobile chassis anti-corrosion coatings, chassis sound insulation coatings, lightweight underbody coatings and vehicle bottom protective paint systems. It is widely used in automotive original factory coating, auto parts finishing and automotive after-market chassis protection projects.

Usage Guide

Add thermoexpandable microspheres into coating slurry under low-speed stirring at room temperature, disperse slowly until homogeneous. Avoid high-speed shear stirring and excessive preheating to prevent microsphere damage and premature foaming. After uniform dispersion, perform conventional coating spraying and roller coating construction. Complete stable thermal expansion and closed-cell forming during 110-160℃ curing process. Adjust dosage, curing temperature and holding time appropriately according to target coating thickness and functional requirements. Keep sealed and moisture-proof during production, construction 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 all the time. Avoid direct sunlight, high-temperature stacking and humid environment to prevent microsphere caking and spontaneous foaming. Standard shelf life is 12 months under proper storage conditions.

Our Advantages

Our 110-160℃ thermoexpandable microspheres feature accurate temperature matching, stable foaming performance and outstanding compatibility with automotive underbody coating systems. The product can stably form uniform closed-cell foamed structure, effectively improving noise reduction, heat insulation and anti-corrosion performance of chassis coatings while realizing lightweight and cost reduction. We support factory direct sales, stable bulk supply, free sample testing and professional coating formula technical guidance to help customers optimize product performance and market competitiveness.

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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.