Synthetic Leather Expandable Microspheres CAS 38742-70-0 are medium-temperature sheepskin effect additives designed for synthetic leather finishing. Microspheres expand uniformly during heating curing, forming fine micro concave-convex texture on the leather surface to simulate soft matte sheepskin hand feel. It features great compatibility with PU and PVC synthetic leather coating systems, stable grain forming performance and long-lasting surface effect. Widely adopted for luggage, garment and

Product Detail

Synthetic Leather Expandable Microspheres CAS 38742-70-0 Sheepskin Effect Agent Medium Temperature Grade

Product Overview

CAS 38742-70-0 Medium Temperature Expandable Microspheres are professional functional modifiers specially developed for synthetic leather surface finishing and texture upgrading. Tailored for PU and PVC synthetic leather production processes, the microspheres achieve uniform and stable thermal expansion under medium-temperature curing conditions. They form delicate, microscopic concave-convex structures on the leather surface, perfectly simulating the soft, matte and luxurious hand feel of natural sheepskin. Featuring excellent compatibility with leather coating systems, stable texture molding and long-lasting surface effect, this product effectively upgrades ordinary flat synthetic leather into high-grade sheepskin-style leather. It is a core functional additive for high-end artificial leather finishing.

Core Features

Authentic Sheepskin Matte Texture: Controlled medium-temperature expansion forms fine and regular micro-grains on the leather surface. It restores the soft, fuzzy and layered matte touch of natural sheepskin, solving the problems of flat, stiff and plastic-looking surface of ordinary synthetic leather.

Medium Temperature Process Adaptability: Optimized activation temperature matches conventional synthetic leather drying and curing processes. No need for production line modification, ensuring uniform expansion and stable texture effect during mass continuous production.

Excellent Coating System Compatibility: Ultra-fine powder with outstanding dispersion in PU resin, PVC paste and leather finishing agents. No agglomeration, floating powder or surface defects, without affecting leather adhesion, flatness and base material performance.

Durable & Washable Surface Effect: The formed micro-concave-convex texture is tightly combined with the leather surface. It features great friction resistance and wash resistance, maintaining stable sheepskin effect without fading or peeling for long-term use.

Improved Leather Grade & Texture: Effectively eliminate the cheap plastic sense of synthetic leather, enhance surface anti-slip performance and softness, greatly improve product appearance grade and market competitiveness.

Stable Batch Consistency: Uniform particle size and stable expansion ratio ensure consistent texture, matte degree and hand feel of finished leather in batch production, low defective rate and high production stability.

Product Specifications

Product Name: Medium Temperature Expandable Microspheres

CAS No: 38742-70-0

Product Type: Synthetic Leather Sheepskin Effect Agent / Surface Texture Modifier

Foaming Temperature Range: 110℃–150℃

Appearance: White Ultra-Fine Powder

Applicable Material: PU Synthetic Leather, PVC Artificial Leather, Various Coated Leather

Core Function: Sheepskin texture forming, matte modification, hand feel upgrading, surface beautification

Recommended Dosage: 1.0%–3.0% (Adjustable according to texture fineness and matte demand)

Application Scope

Widely used in surface finishing and high-grade texture customization of various synthetic leather products. Suitable for garment leather, luggage and bag leather, sofa upholstery leather, automotive interior leather, shoe material leather and craft artificial leather. It is dedicated to creating high-simulation sheepskin matte effect, widely applied in leather goods, furniture decoration, automobile industry and daily apparel fields.

Usage Guide

Add expandable microspheres into leather finishing coating slurry under low-speed stirring at room temperature, and disperse slowly and evenly. Avoid high-speed shear stirring and high-temperature preheating to prevent microsphere rupture and premature foaming. After uniform dispersion, coat the slurry on the leather surface according to conventional finishing procedures. Complete thermal expansion and sheepskin texture forming through standard medium-temperature drying and curing. Adjust dosage, coating thickness and curing parameters appropriately according to target texture and matte effect. Keep sealed and moisture-proof during operation and storage.

Packaging & Storage

Packaging: 25kg sealed moisture-proof composite packaging with inner liner, dust-proof and leak-proof, suitable for industrial batch production and long-distance transportation.

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

Our Advantages

Our medium temperature expandable microspheres are professionally optimized for synthetic leather sheepskin effect modification. With stable expansion performance, uniform grain fineness and excellent system compatibility, the products can form high-simulation, long-lasting sheepskin matte texture on leather surface without affecting leather flexibility and adhesion. We support factory direct sales, stable bulk supply, free sample testing and professional leather finishing formula technical guidance, helping customers upgrade product texture and increase added value.

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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.