Low Temperature Grade Thermoexpandable Microspheres CAS 38742-70-0 serve as functional suede effect agent for leather finishing. Upon moderate heating, microspheres expand evenly to form fine concave-convex structure on leather surface, delivering soft delicate suede texture. It features low activation temperature, good compatibility with leather coating systems and stable matte velvet effect.

Product Detail

Thermoexpandable Microspheres Low Temperature Grade CAS 38742-70-0 Leather Finishing Suede Effect Agent

Product Overview

CAS 38742-70-0 Low Temperature Thermoexpandable Microspheres are professional functional additives specially developed for leather finishing and surface modification. With low-temperature thermal expansion performance and ultra-fine uniform particle size, the microspheres can form dense and delicate micro concave-convex structures on the leather surface after mild heating expansion. It effectively simulates natural suede velvet texture, endowing leather products with soft matte hand feel, high-grade suede appearance and anti-slip performance. Featuring excellent compatibility with water-based and solvent-based leather finishing systems, stable foaming effect and no damage to leather base material, it is an ideal suede effect modifier for artificial leather, synthetic leather and genuine leather finishing.

Core Features

Realistic Suede & Velvet Effect: Uniform thermal expansion forms fine micro uneven surface, creating soft natural suede matte texture, effectively upgrading ordinary smooth leather to high-end velvet leather finish.

Mild Low-Temperature Molding: Low activation temperature realizes safe expansion under low-temperature curing, avoiding leather hardening, wrinkling, discoloration and base layer damage caused by high-temperature treatment.

Excellent Leather System Compatibility: Optimized surface treatment ensures uniform dispersion in leather finishing slurry, topcoat and coating materials, no agglomeration, no floating powder, stable and uniform surface effect.

Improve Leather Comprehensive Performance: Effectively enhance leather surface anti-slip property, wear resistance and texture grade, cover minor surface defects of leather, improve product yield and appearance consistency.

Stable & Durable Modification: Firm microsphere embedding structure after molding, not easy to fall off or fade, maintains long-term stable suede effect after washing and friction, excellent durability.

Product Specifications

Product Name: Low Temperature Thermoexpandable Microspheres

CAS No: 38742-70-0

Product Type: Functional Suede Effect Finishing Agent / Thermoplastic Blowing Agent

Foaming Temperature Range: 75℃–110℃

Appearance: White Ultra-Fine Powder

Applicable Industry: Leather Finishing, Artificial Leather, Synthetic Leather Surface Modification

Core Function: Suede velvet effect, matte texture modification, anti-slip & beautifying surface

Recommended Dosage: 1.0%–3.0% (Adjustable according to suede fineness requirements)

Application Scope

Widely used in surface finishing and texture modification of various leather products. Including PU synthetic leather, PVC artificial leather, microfiber leather and genuine leather finishing. Suitable for leather shoes, leather bags, sofa leather, garment leather, automotive interior leather and craft leather products, providing uniform delicate suede matte effect for all kinds of leather surface upgrading.

Usage Guide

Add thermoexpandable microspheres into leather finishing coating or slurry under low-speed stirring condition, stir evenly at room temperature to avoid high shear force damaging microsphere structure and causing premature foaming. Apply uniform coating on leather surface after complete dispersion. Complete thermal expansion and suede texture forming through low-temperature drying and curing process. Adjust dosage, coating thickness and curing temperature appropriately according to target velvet fineness and matte degree. Keep materials sealed and moisture-proof during use and storage.

Packaging & Storage

Packaging: 25kg sealed moisture-proof composite bag with inner liner, dust-proof and leak-proof for industrial bulk transportation.

Storage: Store in dry, cool and ventilated warehouse, keep tightly sealed all the time. Avoid direct sunlight, high temperature environment and humid air to prevent spontaneous foaming and caking. The shelf life is 12 months under standard storage conditions.

Our Advantages

We supply low-temperature thermoexpandable microspheres dedicated for leather suede modification with stable batch foaming performance and uniform particle size. The product presents delicate and consistent velvet effect on leather surface, will not affect leather adhesion, flexibility and color. We support factory direct sales, long-term stable bulk supply, free sample testing and professional leather finishing formula technical guidance, helping leather manufacturers improve product grade 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.