🔍 What is Ebonite Sheet?
Ebonite sheet, also known as hard rubber or vulcanite, is a composite material made from natural rubber and sulfur that undergoes intensive vulcanization. This process creates a highly dense and hard molecular structure, resulting in a material with unique characteristics not found in conventional rubber.
This material has a long history in industrial applications since the 19th century, especially known for its extraordinary electrical insulation properties. Ebonite was one of the first polymer materials used commercially and remains relevant today due to its combination of mechanical properties, chemical resistance, and electrical performance that is hard to match.
Visually, ebonite sheet has a glossy dark brown to black appearance with a very smooth surface texture. The material is renowned for its high density and surface properties that can be polished to a high degree of smoothness, making it ideal for precision applications.
⚙️ Product Functions
Electrical & Electronic Components: As a premium insulator material for bushing, terminal blocks, and electrical panels due to its dielectric resistivity reaching 10¹⁵ ohm-cm. This material is the top choice for high-voltage applications and environments with strong electromagnetic fields.
Industrial Gaskets & Packing: Functions as a chemical-resistant gasket material for acid, alkali, and organic solvent piping systems. Its exceptional chemical resistance makes it ideal for chemical and petrochemical industries.
Precision Mechanical Components: Used in manufacturing bushings, bearings, wear plates, and friction components due to its low friction coefficient and high wear resistance. Its natural self-lubricating properties reduce lubrication needs.
Corrosion-Resistant Applications: Asa protective lining for chemical tanks, piping systems, and storage containers for aggressive materials. This material is unaffected by most acids, bases, and organic solvents.
Automotive & Industrial Components: For technical rubber components such as fuel pump seals, fuel system components, and engine parts requiring fuel and oil resistance.
💡 Product Benefits
✅ Exceptional Chemical Resistance: Resistant to acids, alkalis, organic solvents, oils, and other industrial chemicals
✅ Premium Electrical Insulation: Superior dielectric properties for high-voltage applications and precision electrical equipment
✅ High Mechanical Durability: Excellent wear resistance with hardness up to 100 Shore D
✅ Outstanding Dimensional Stability: Maintains shape and size under various operating conditions
✅ Temperature Resistance: Stable performance in the temperature range from -40°C to +70°C
✅ Polishable Surface: Capability for surface finishing for aesthetic and precision applications
✅ Water & Moisture Resistance: Natural hydrophobic properties prevent water absorption and degradation
🏆 Why Choose Ebonite Sheet from Mulia Jaya Packing?
1. Premium Material Quality: We only provide ebonite with high natural rubber content (minimum 70%) to ensure optimal performance
2. Comprehensive Thickness Range: Available from 3mm to 25mm with standard sheet size 1220mm x 2440mm and custom cutting
3. 15+ Years Industrial Experience: Our technical team is ready to provide application consultation for the best solutions
4. Global Supplier Network: Access to world-leading brands with consistent quality
5. Strict Quality Control Process: Every ebonite sheet undergoes hardness testing, chemical resistance testing, and visual inspection
6. One-Stop Technical Material Solution: Get your heat-resistant materials and gland packing needs from one trusted supplier
7. Competitive Pricing: Supply chain efficiency allows us to offer the best prices without quality compromise
📊 Technical Specifications
| Parameter |
Specification |
Explanation |
| Base Material |
Natural Rubber + Sulfur (Vulcanized) |
Minimum 70% natural rubber content with controlled vulcanization process |
| Hardness |
90-100 Shore D |
Measured by ASTM D2240 method, ensuring high wear resistance |
| Thickness |
3mm, 5mm, 8mm, 10mm, 12mm, 15mm, 20mm, 25mm |
Thickness tolerance ±0.2mm for precision technical applications |
| Sheet Size |
1220mm x 2440mm (Standard) |
Can be custom cut to specific needs with ±2mm tolerance |
| Tensile Strength |
Min. 60 MPa |
Measured by ASTM D412 method, ensuring structural integrity |
| Electrical Resistivity |
10¹⁴ - 10¹⁶ ohm-cm |
Superior insulation properties for high voltage electrical applications |
| Temperature Resistance |
-40°C to +70°C |
Stable performance without significant deformation in this range |
| Chemical Resistance |
Acids, Alkalis, Organic Solvents |
Resistant to various industrial chemicals with pH 2-12 |
| Quality Standards |
ASTM D 2000, DIN 7716, ISO 6123 |
Complies with international standards for hard rubber materials |
🏷️ Available Brands in Indonesia
1. KLINGER Ebonite: Premium Austrian brand with best quality consistency for high-pressure applications and extreme chemical resistance. Top choice for the petrochemical industry.
2. Frenzelit Novoteite: German ebonite with a special formula for heat resistance and superior mechanical properties. Suitable for power plant applications.
3. Trelleborg Ebonite: Swedish solution with exceptional dimensional stability characteristics for precision components. Choice for the automation industry.
4. CR Sheet Rubber: Quality local brand with competitive pricing for general applications. Meets SNI standards for technical rubber materials.
5. EagleBurgmann Ebonite: Sealing solutions specialist with specially formulated ebonite for food and pharmaceutical industries.
🚀 Product Advantages
High Precision: Our ebonite sheets have tight dimensional tolerances (±0.1mm), enabling precision installation without additional machining for many applications.
Superior Chemical Resistance: Compared to other technical materials, our ebonite shows better resistance to concentrated sulfuric acid, caustic solutions, and various organic solvents.
Easy Fabrication: Our material can be cut, drilled, and shaped with standard workshop equipment, saving production time and component costs.
Dimensional Stability: With a low thermal expansion coefficient (80x10⁻⁶/°C), our product maintains dimensional accuracy during operational temperature fluctuations.
Consistent Electrical Performance: Volume resistivity remains stable above 10¹⁴ ohm-cm even in high humidity conditions, ensuring electrical equipment reliability.
Natural Hydrophobicity: Non-porous structure prevents water absorption (<0.5% in 24-hour immersion), maintaining mechanical and electrical integrity in wet environments.
💬 Customer Testimonials
"We've been using ebonite sheets from Mulia Jaya Packing for chemical reactor gaskets for the past 3 years. This material has proven resistant to concentrated sulfuric acid and high pressure, reducing maintenance downtime by 40% compared to previous materials. Consistent quality with every shipment gives us peace of mind in plant operations." - Chemical Industry Plant Manager, East Java
"As a manufacturer of high-voltage electrical panels, we need reliable insulator materials. Ebonite from Mulia Jaya provides a solution with stable dielectric properties and machining ease. Their technical support team helped us optimize bushing designs for specific applications." - Electrical Company Technical Director, Tangerang
📦 Availability & Delivery
Ebonite sheet stock is always available at our main warehouse in Surabaya with full thickness variations. For standard sizes (1220mm x 2440mm), delivery can be arranged within 24 hours after order confirmation. For special needs (custom size, specific cutting), production lead time is only 3-5 working days.
We serve nationwide shipping via trusted carriers with a material safety guarantee. Jabodetabek, East Java, and West Java areas can receive orders within 1-2 working days. For Kalimantan, Sulawesi, and Sumatra regions, estimated delivery is 3-5 working days with real-time tracking facilities.
🛡️ Warranty & After-Sales Service
Every ebonite sheet purchase from Mulia Jaya Packing is covered by a 12-month material warranty against manufacturing defects and specification non-conformity. Our technical team provides comprehensive after-sales support including:
• Free application consultation for material usage optimization
• Technical assistance in selecting ebonite grades for specific needs
• Brief training on material fabrication and installation techniques
• Sample testing services at our partner laboratory
For warranty claims, our dedicated team will respond within 24 working hours with material replacement solutions or technical adjustments.
📞 Contact Us and Order Now!
Be the next to experience premium ebonite material solutions from Mulia Jaya Packing! Our specialist team is ready to help you select the right ebonite grade for specific applications with free consultation. Get competitive pricing offers for volume purchases and long-term projects. Contact us now via WhatsApp at 0812-3456-7890, email [email protected], or visit our contact page. Order today and get 5% discount on your first purchase!