75-105℃ Expandable Thermoplastic Microspheres CAS 38742-70-0 are low-temperature blowing agents. The microspheres expand evenly upon heating, featuring low initiation temperature, stable foaming performance and good compatibility. It is specially used as foaming additive for modeling clay to realize lightweight texture.

Product Detail

75-105℃ Expandable Thermoplastic Microspheres CAS 38742-70-0 Low Temperature Blowing Agent for Modeling Clay

Product Overview

75-105℃ Expandable Thermoplastic Microspheres CAS 38742-70-0 are professional low-temperature blowing agents customized for modeling clay, polymer clay and lightweight plasticine products. With an ultra-low initial foaming temperature of 75℃ and a full expansion range up to 105℃, the microspheres can achieve gentle and uniform foaming at low-temperature baking conditions. It features stable expansion ratio, excellent dispersion and high compatibility with clay substrates. This additive effectively reduces product density, creates lightweight, fluffy and non-shrinkage texture, and solves common problems such as heavy weight, easy cracking and hard surface of traditional modeling clay. It is an ideal functional foaming material for lightweight clay production.

Core Features

Ultra-Low Temperature Foaming: Starts expansion at 75℃ and fully foams at 105℃, matching low-temperature baking process of modeling clay. No high-temperature deformation, discoloration or base material damage.

Uniform & Stable Expansion Performance: Consistent particle size distribution, stable foaming multiple, forms fine closed-cell structure. Makes clay texture delicate, fluffy and uniform without hollowing or local bulging.

Excellent Clay Compatibility: Specially optimized surface activity, evenly mixed with clay slurry and powder materials, no agglomeration, no floating particles, maintaining smooth hand feel of finished clay products.

Improve Product Physical Properties: Greatly reduce the overall weight of modeling clay, effectively prevent cracking and shrinkage after baking, enhance flexibility and stereoscopic retention of handmade shapes.

Safe & Low Odor: Non-toxic formula, low volatile content, no peculiar smell during heating and foaming, safe for art crafts and children clay products, compliant with daily environmental protection standards.

Product Specifications

Product Name: Expandable Thermoplastic Microspheres

CAS No: 38742-70-0

Product Type: Low Temperature Blowing Agent

Foaming Temperature Range: 75℃–105℃

Appearance: White Fine Powder

Main Application: Modeling Clay, Polymer Clay, Lightweight Plasticine

Core Function: Lightweight modification, anti-shrinkage, anti-cracking, texture optimization

Recommended Dosage: 1.0%–4.0% (Adjustable according to lightweight demand)

Application Scope

Mainly used for lightweight modification of various modeling clay products, including DIY handmade clay, polymer clay, baking plasticine, art sculpture clay, craft ornament clay and toy modeling clay. It is widely applicable for clay products that require low-temperature molding, light weight, delicate texture and stable stereoscopic effect, perfectly meeting the production needs of craft manufacturers and daily handmade supplies.

Usage Guide

Mix the expandable microspheres evenly with clay raw materials and auxiliary materials during the batching process. Avoid high-temperature and high-shear stirring to prevent premature foaming and microsphere damage. After uniform mixing, perform conventional kneading and molding. Complete foaming and lightweight shaping during low-temperature baking at 75–105℃. Adjust the addition amount and baking temperature properly according to target weight and texture requirements. Keep materials sealed and stored to prevent moisture absorption and advance expansion.

Packaging & Storage

Packaging: 25kg sealed moisture-proof packaging, dust-proof and leak-proof, suitable for industrial mass production and transportation.

Storage: Store in a dry, cool and ventilated warehouse, keep tightly sealed. Strictly avoid high temperature, direct sunlight and humid environment to prevent spontaneous foaming and agglomeration. Standard shelf life is 12 months under normal storage conditions.

Our Advantages

We provide low-temperature expandable microspheres specially customized for modeling clay, with stable batch foaming temperature and uniform particle size. The product features high foaming stability, no impact on clay color and hand feel, and significantly improves the yield of lightweight clay products. We support factory direct sales, long-term stable bulk supply, free sample testing and professional formula debugging services, helping clay manufacturers reduce costs and upgrade product quality.

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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.