Wet Cake Thermoexpandable Microspheres CAS 38742-70-0 serve as high-performance lightweight fillers designed for water-based paint systems. Supplied in wet cake form, the microspheres disperse evenly in aqueous coatings without agglomeration. Upon heating, they expand controllably to form uniform closed-cell structures, effectively lowering coating density, saving raw materials and improving thermal insulation properties. The product maintains good compatibility with various water-based resins a

Product Detail

Wet Cake Thermoexpandable Microspheres CAS 38742-70-0 Water-based Paint Lightweight Filler

Product Overview

Wet Cake Thermoexpandable Microspheres CAS 38742-70-0 is a high-efficiency lightweight functional filler specially optimized for water-based paint and coating systems. Different from traditional dry powder microspheres and wet slurry products, it adopts high-purity wet cake form with low moisture content and high effective microsphere content.

This product features excellent water-based dispersion with no agglomeration or precipitation during mixing. It remains stable at room temperature without premature expansion. During paint heating and curing, the microspheres expand controllably to form uniform and dense closed-cell structures inside the coating film. It effectively reduces paint density, cuts raw material costs, and endows coatings with excellent thermal insulation, sound insulation and matte texture. Fully compatible with all water-based resin systems, it causes no film defects such as pinholes or cracks, being an ideal lightweight modification additive for high-grade water-based paints.

Core Advantages

High-Purity Wet Cake FormAdopts professional filter cake molding with higher effective content than ordinary wet slurry. Low water content avoids formula dilution, ensuring stable paint viscosity and film-forming performance.

Superior Water-Based DispersionNo grinding or pre-dispersion required, evenly mixed into water-based paints at room temperature. No floating particles, no sedimentation, suitable for automated batch production.

Stable Thermal Lightweight EffectControllable expansion temperature range, forms uniform closed-cell structure after heating. Significantly reduces coating weight and improves product surface flatness and texture.

Excellent Formula CompatibilityPerfectly compatible with water-based acrylic, polyurethane, epoxy and other waterborne coatings. Will not affect adhesion, hardness and weather resistance of paint film.

Multifunctional Performance UpgradeWhile realizing lightweight modification, it optimizes coating matte effect, enhances thermal insulation and sound absorption, and improves coating scrub resistance.

Eco-Friendly & Low VOCPhysical foaming principle, non-toxic, odorless and low VOC. Complies with global environmental protection standards for architectural and industrial water-based coatings.

Product Specifications

Product Name: Wet Cake Thermoexpandable Microspheres

CAS No: 38742-70-0

Appearance: Uniform white wet cake

Core Function: Lightweight filling, density reduction, thermal insulation, matte texture modification

Applicable System: All water-based paints, waterborne architectural coatings, industrial aqueous coatings

Processing Method: Room temperature low-speed dispersion + heating curing expansion

Recommended Dosage: 1%–4% of total formula weight

Application Scope

Widely used in lightweight modification and functional upgrading of various water-based paint products. Typical applications include water-based architectural decorative coatings, thermal insulation coatings, industrial matte paints, water-based anti-corrosion coatings and environmental protection finishing paints. It effectively solves the problems of heavy coating weight, high cost and single surface texture of traditional water-based paints, greatly improving the comprehensive performance and market competitiveness of finished coatings.

Usage Instructions

Add wet cake thermoexpandable microspheres into water-based paint raw materials under low-speed stirring at room temperature, and stir evenly. Avoid high-speed shearing and ultra-high temperature environment to prevent premature expansion of microspheres. Complete thermal expansion and lightweight molding during the paint heating and curing process. Adjust the addition amount and curing parameters according to the required lightweight degree and surface effect. Keep the product tightly sealed during storage.

Packaging & Storage

Packaging: Special sealed moisture-proof packaging for wet cake materials, leak-proof and shock-resistant, suitable for industrial bulk transportation and long-distance delivery.

Storage: Store in a cool, dry and ventilated warehouse. Keep tightly sealed, avoid direct sunlight, high temperature and freezing conditions. The shelf life is 12 months under standard storage environment.

Our Strengths

We supply high-stability wet cake thermoexpandable microspheres with uniform particle size and consistent batch quality. Compared with traditional microsphere products, our wet cake grade has higher effective content, better dispersion and more stable lightweight effect, specially tailored for water-based paint systems. We support factory direct sales, sufficient inventory, free sample testing and one-stop technical formula guidance to help customers reduce costs and upgrade coating 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.