Dry Expanded Microspheres CAS 38742-70-0 DE Grade Ultra Lightweight Filler Low Density Additive
Dry Expanded Microspheres CAS 38742-70-0 DE Grade are ultra-lightweight low-density functional fillers. As pre-expanded dry microspheres, they feature stable hollow closed-cell structure, outstanding flowability and easy dispersion in various resin systems. It can greatly reduce formulation density, cut raw material consumption, and improve thermal insulation, shock absorption and dimensional stability of finished products. Compatible with plastics, coatings, adhesives and composite materials, i
Dry Expanded Microspheres CAS 38742-70-0 DE Grade Ultra Lightweight Filler Low Density Additive
Product Overview
DE Grade Dry Expanded Microspheres CAS 38742-70-0 are pre-expanded hollow polymer microspheres designed as ultra-lightweight functional fillers. With stable closed-cell hollow structure and excellent free-flowing powder property, they can be easily dispersed into various solvent-based and solvent-free resin systems without secondary heating expansion.
Adding DE grade dry expanded microspheres can significantly lower the density of finished products, reduce raw material usage and production costs. Meanwhile, it brings excellent thermal insulation, shock absorption and dimensional stability, effectively alleviating material shrinkage during curing. Compatible with plastics, coatings, adhesives and composite materials, this product will not cause obvious negative impacts on basic mechanical properties, making it a preferred low-density lightweight additive for diversified industrial applications.
Core Features
- Pre-expanded dry powder formNo heating expansion required during processing, directly usable, simplifying production process.
- Ultra-low density & closed hollow structureGreatly reduce formulation weight, achieve lightweight effect and save raw materials.
- Good flowability and dispersibilityUniform powder, easy mixing with resins, less agglomeration under proper stirring.
- Improve comprehensive material performanceEnhance thermal insulation, sound absorption and shock resistance, reduce curing shrinkage.
- Wide compatibilityApplicable to solvent-based coatings, composite materials, sealants, adhesives and thermoset resins.
- Stable finished product dimensionHelp control product shrinkage and deformation during curing and molding.
Product Specifications
Product Name: Dry Expanded Microspheres DE GradeCAS No: 38742-70-0Appearance: White free-flowing dry powderCore Function: Ultra-lightweight filling, density reduction, thermal insulation, shrinkage controlApplicable Systems: Solvent coatings, composite materials, sealants, adhesives, plastic compoundsRecommended Dosage: 1%–8% based on total formula weight (adjust according to target density)
Application Scope
Widely used in lightweight modification of industrial coatings, artificial stone composite materials, sealants, epoxy fillers, putty, automotive interior materials, marine coatings and insulation materials. Suitable for industries including construction, transportation, new composite materials and chemical finishing.
Usage Guide
Add DE grade dry expanded microspheres into resin systems under low-speed stirring. Avoid high shear and excessive stirring speed to prevent microsphere shell breakage. Adjust addition amount according to target density and surface requirements. For better dispersion, add microspheres at the later stage of mixing. Keep containers tightly sealed against moisture absorption.
Packaging & Storage
Packaging: Sealed composite bags / fiber drums with inner plastic liner, moisture-proof packaging.Storage: Store in dry, cool and ventilated warehouse. Prevent moisture, avoid heavy extrusion and direct sunlight.Shelf Life: 12 months under proper dry storage conditions.
Our Advantages
Our DE grade dry expanded microspheres feature consistent particle size, intact hollow structure and stable low density. Pre-expanded design eliminates dependence on heating procedures, bringing higher production flexibility compared with unexpanded microspheres. Factory direct supply, stable batch quality, free sample testing and technical formula support available for customers.
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