Provides Strong and Uniform Graphite Bonding
Korvanto Bentonite
Korvanto Bento Pencil
Bentonite for Pencil Lead Manufacturing & Graphite Bonding Applications
Export Ready
Overview
Product Overview
KORVANTO BENTO PENCIL™ is a premium-grade bentonite specially developed for the pencil manufacturing industry. Produced from carefully selected bentonite deposits with high montmorillonite content it serves as an effective binder in the production of pencil leads providing the strength cohesion and workability required during extrusion drying and firing processes.
Its superior binding characteristics high water absorption capacity and excellent green and dry strength properties help produce pencil leads with consistent shape smooth writing performance and reduced breakage. The fine particle size and high surface area enable efficient bonding of graphite and other lead-forming materials while maintaining dimensional stability throughout manufacturing.
KORVANTO BENTO PENCIL™ is designed to support efficient production improved lead quality and reduced rejection rates in modern pencil manufacturing operations.
Performance
Key Benefits
Improves Pencil Lead Strength and Durability
Supports Smooth Extrusion During Manufacturing
Enhances Shape Retention and Dimensional Stability
Reduces Lead Breakage During Production and Use
Promotes Fast Bond Development
Minimizes Manufacturing Rejections and Waste
Effective Performance at Lower Addition Levels
Improves Overall Production Efficiency
Technical Data
Representative Technical Specifications
KORVANTO BENTO PENCIL — Pencil Grade Bentonite
| Parameter | Representative Value |
|---|---|
| Form | Finely Divided Powder |
| Free Swelling | 23–25 ml |
| pH | 8.5–9.5 |
| Moisture | 12% Max |
| Fineness | 99.95% Through 500 B.S. Sieve |
| Bulk Density (20/25°C) | 0.800 g/cc |
Representative values shown above. Full Technical Data Sheet (TDS) Certificate of Analysis (COA) and additional documentation are available upon request.
Custom grades and tailored specifications can be supplied based on pencil formulation requirements and customer specifications.
Industry Use
Applications
Grades
Available Grades
Pencil Grade Bentonite
Custom Grade
Bespoke Supply
Custom Grade
Custom Manufacturing Options
Korvanto supplies bento pencil according to customer requirements including:
Discuss Custom Specs →Particle Size Distribution
Custom Specifications & Grades
Application-Specific Formulations
Quality & Purity Requirements
Custom Packaging
Export Documentation Support
Supply Formats
Available Forms
Premium bentonite for pencil lead manufacturing supplied as a finely processed powder grade for binding and extrusion applications.
Export Supply
Packaging Options
Product Support
Frequently Asked Questions
What is KORVANTO BENTO PENCIL used for
Korvanto BENTO PENCIL is a high-purity sodium bentonite specially processed for the pencil manufacturing industry. It is used as a binder in pencil lead formulations helping improve extrusion green strength dimensional stability and the overall quality of graphite and colored pencil cores.
What types of pencils is KORVANTO BENTO PENCIL suitable for
Korvanto BENTO PENCIL is suitable for:
Graphite Pencils
HB & Writing Pencils
Drawing Pencils
Colored Pencils
Sketching Pencils
Artist Pencils
School Stationery Pencils
Specialty Pencil Lead Formulations
What are the benefits of using Pencil Grade Bentonite
Korvanto BENTO PENCIL offers:
Excellent binding properties
Smooth extrusion during pencil lead manufacturing
Improved green strength before firing or drying
Uniform lead density and consistency
Reduced breakage during production
Better dimensional stability
Consistent manufacturing performance
Can Pencil Grade Bentonite be customized for different pencil formulations
Yes. Korvanto can supply customized pencil-grade bentonite based on particle size plasticity moisture content swelling characteristics and formulation requirements to suit different graphite clay and colored pencil manufacturing processes.
What packaging and documentation are available
Korvanto BENTO PENCIL is available in:
25 kg Bags
50 kg Bags
Jumbo Bags (FIBC)
Palletized Shipments
Bulk Container Supply
Technical Data Sheets (TDS) Certificate of Analysis (COA) Safety Data Sheets (SDS) and other export documentation are available upon request.
Get Started
Request TDS / Request Quote
Share your grade requirements destination country and documentation needs. Our export team will provide a Technical Data Sheet certificate support and a tailored quotation for Korvanto Bento Pencil.