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Kaolin - Hico New Materials
KEY INDICATORS
Product Key Indicators
Key performance parameters of kaolin at a glance
92
Highest Whiteness
HY-801A
3 Models
Selected Grades
Calcined 1 + Modified 2
1.81μm
Minimum D50
JYCK-60 / HY-801A
≤0.20%
Lowest Moisture
HY-501A
PRODUCT ADVANTAGES
Kaolin Four Core Advantages
Strengthening · Insulation · Processing · Cost Reduction
01
💪
Strengthening · Cost Reduction
Low density and good dispersion, achieving high volume fraction after mixing. Provides strengthening, increasing capacity, and cost reduction. Improves tensile strength, modulus, and elongation at break of rubber products.
02
⚡
Insulation · Breakdown Resistance
Improves insulation and insulation retention of products, effectively enhancing resistance to electrical breakdown. An ideal functional filler for insulation products such as wires and cables.
03
🔧
Hardness Adjustment · Processing
Can adjust hardness and improve processing performance including mixing, extrusion, and molding. Enhances dispersion and mechanical strength of products for smoother processing and higher yield rates.
04
🔬
Ultra-fine · High Whiteness, Low Moisture
D50 of JYCK-60 and HY-801A is only 1.8μm, ensuring excellent dispersion. HY-801A whiteness up to 92, HY-501A moisture as low as ≤0.20%.
KAOLIN ADVANTAGES
Kaolin Core Advantages
Calcined aluminum silicate fine powder · Strengthening · Insulation · Processing

🔥 Calcination Process Principle

Rubber-specific kaolin is a fine powder of aluminum silicate produced by controlling different calcination temperatures and dehydrating coal-bearing kaolin. The calcination temperature determines key parameters such as whiteness, particle size, and oil absorption value. Modified types undergo surface treatment on the basis of calcination to reduce oil absorption and improve dispersion, making them more suitable for specific applications.

💪
Strengthening · Cost Reduction
High volume fraction, significant strengthening and capacity-increasing effect, reducing production costs
⚡
Insulation · Breakdown Resistance
Improves insulation and insulation retention, excellent resistance to electrical breakdown
📐
Improved Mechanical Properties
Comprehensive improvement in tensile strength, modulus, and elongation at break
🔧
Improved Processing
Adjustable hardness, smoother mixing, extrusion, and molding, higher yield rate
🧭
Ultra-fine Particle Size
D50≈1.8μm, uniform dispersion without agglomeration, stable processing
✨
High Whiteness · Low Moisture
Whiteness up to 92, moisture as low as ≤0.20%, wide application range
PRODUCT TYPE
Two Series for Precise Selection
Calcined Kaolin · Modified Kaolin — Covering rubber, adhesives, insulation filling and more

🔥 Calcination Process & Selection Guide

Rubber-specific kaolin is a fine powder of aluminum silicate produced by controlling different calcination temperatures and dehydrating coal-bearing kaolin. The calcination temperature determines key parameters such as whiteness, particle size, and oil absorption value. Modified types undergo surface treatment on the basis of calcination to reduce oil absorption and improve dispersion, making them more suitable for low-viscosity systems such as adhesives.

Kaolin Microstructure Diagram
Calcined Calcined Kaolin
Ultra-fine · High Whiteness · Rubber Specific
JYCK-60
Whiteness: 85±2
D50: 1.83μm
Oil Absorption: 60-75
Moisture: ≤0.50%
Modified Modified Kaolin
Low Oil Absorption · High Whiteness · Adhesive/Insulation Specific
HY-501A HY-801A
Whiteness: 84.1 / 92
D50: 4.28 / 1.81μm
Oil Absorption: 20-35 / 60-75
Moisture: ≤0.20 / 0.28%
⚠
Selection Guide: For rubber reinforcement applications, JYCK-60 is recommended (ultra-fine D50=1.83μm, excellent dispersion); for adhesive applications, HY-501A is recommended (low oil absorption 20-35, smoother processing); for high whiteness/insulation applications, HY-801A is recommended (highest whiteness 92, D50 only 1.81μm). The specific product values are subject to the actual factory inspection report.
TECHNICAL PARAMETERS
Product Technical Parameters
Kaolin full series parameters — Calcined 1 + Modified 2
📊 Calcined Kaolin
Product Name Model No. Whiteness D50
(μm)		 D90
(μm)		 Oil Absorption
(g/100g)		 Moisture
(%)		 Loss on Ignition
(%)
Calcined Kaolin JYCK-60 85±2 1.83 7.1 60-75 ≤0.50 ≤0.30
📋 JYCK-60 is calcined type with D50 of only 1.83μm, ultra-fine particle size ensures excellent dispersion; loss on ignition only ≤0.30%, fully calcined. The specific product values are subject to the actual factory inspection report.
📊 Modified Kaolin
Product Name Model No. Whiteness D50
(μm)		 D90
(μm)		 Oil Absorption
(g/100g)		 Moisture
(%)		 Loss on Ignition
(%)
Modified Kaolin HY-501A 84.1 4.28 13.08 20-35 ≤0.20 ≤5.00
Modified Kaolin HY-801A 92 1.81 7.69 60-75 0.28 —
📋 HY-501A has the lowest oil absorption (20-35) and lowest moisture (≤0.20%), suitable for low-viscosity systems; HY-801A has the highest whiteness (92), D50 only 1.81μm comparable to JYCK-60, suitable for high-whiteness insulation applications. The specific product values are subject to the actual factory inspection report.
Product Warehouse
Product Testing
PRODUCT INTRODUCTION
Product Introduction
Kaolin · Calcined aluminum silicate fine powder · Strengthening · Insulation

Rubber-specific kaolin is a fine powder of aluminum silicate produced by controlling different calcination temperatures and dehydrating coal-bearing kaolin. This kaolin has low density, good dispersion performance, and high volume fraction after mixing, providing strengthening, increasing capacity, and reducing costs.

Kaolin can effectively improve the mechanical properties of rubber products (tensile strength, modulus, elongation at break), enhance the insulation and insulation retention of products, adjust hardness, and improve processing performance such as mixing, extrusion, and molding.

Modified kaolin undergoes surface treatment on the basis of calcination to reduce oil absorption and improve dispersion, making it more suitable for low-viscosity systems such as adhesives. HY-801A has a whiteness of up to 92, making it the preferred choice for insulation filling and high-whiteness applications.

Coal-bearing Kaolin Aluminum Silicate Calcination & Dehydration Strengthening Insulation Cost Reduction
✓
Strengthening · Cost Reduction
High volume fraction, significant strengthening effect
✓
Insulation · Breakdown Resistance
Improves insulation and insulation retention
✓
Improved Mechanical Properties
Tensile strength, modulus, elongation at break improved
✓
Improved Processing
Adjustable hardness, smoother mixing, extrusion, molding
✓
Ultra-fine Particle Size
D50≈1.8μm, uniform dispersion without agglomeration
✓
High Whiteness · Low Moisture
Whiteness up to 92, moisture as low as ≤0.20%
APPLICATION AREAS
Four Core Applications
Covering rubber, adhesives, reinforcement filling, and insulation filling
Rubber Application
App 01
Rubber
As a functional filler in rubber, improves mechanical properties (tensile strength, modulus, elongation at break), adjusts hardness, and enhances processing performance such as mixing, extrusion, and molding, improving dispersion and mechanical strength.
Adhesives Application
App 02
Adhesives
Used as a functional filler in adhesive formulations, leveraging low oil absorption (HY-501A only 20-35) to improve flowability, enhance bonding strength and long-term reliability, suitable for electronics and construction applications.
Reinforcement Filling Application
App 03
Reinforcement Filling
Low density and good dispersion, high volume fraction after mixing, providing strengthening, increasing capacity, and cost reduction. Improves mechanical strength of materials, widely used in various composite reinforcement systems.
Insulation Filling Application
App 04
Insulation Filling
Improves insulation and insulation retention of products, effectively enhancing resistance to electrical breakdown. An ideal functional filler for insulation products such as wires and cables, ensuring long-term stable operation.
For product quotes, test reports, and inquiries, please contact us
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