IS 638 : 2024
Sheet Rubber Jointing and Rubber Insertion Jointing
summary
Sheet Rubber Jointing and Rubber Insertion Jointing are sealing materials used between flanges and mechanical joints to prevent leakage of liquids, gases, and steam. Rubber insertion jointing contains fabric reinforcement layers for added strength and pressure resistance, making it suitable for industrial pipelines, boilers, compressors, and fluid handling systems.
Why BIS Certificate is Mandatory for Sheet Rubber Jointing and Rubber Insertion Jointing
BIS certification is mandatory to ensure sheet rubber jointing products meet prescribed standards for tensile strength, thickness, pressure resistance, and durability. Since these materials are used in critical sealing applications, certification prevents leakage failures, safety hazards, and performance issues, ensuring reliability in industrial and commercial installations across India.
What is BIS Certified for Sheet Rubber Jointing and Rubber Insertion Jointing
The BIS certified specification defines requirements for physical properties, tensile strength, elongation, hardness, thickness tolerance, and reinforcement quality of sheet rubber jointing materials. It also covers testing methods for oil resistance, temperature resistance, and pressure performance, ensuring compliance with Indian Standards for industrial sealing applications.
Test required for Sheet Rubber Jointing and Rubber Insertion Jointing
| Title | Mandatory/Optional |
|---|---|
| Jointing material | Required |
| Composition of rubber compound | Required |
| Breaking load of fabric reinforcement for rubber insertion jointing | Required |
| Visual examination | -- |
| Thickness and number of plies | Required |
| Size | Required |
| Tensile strength and elongation at break | Required |
| Accelerated ageing | Required |
| Compression set | Required |
| Resistance to bending | Required |
| Adhesion | Required |
| Hardness | Required |
Benefits of BIS Certification for Sheet Rubber Jointing and Rubber Insertion Jointing
1. Assured Sealing Performance
BIS certification ensures rubber jointing materials meet required strength and elasticity standards, reducing risks of leakage in pipelines, valves, and flange connections.
2. Enhanced Safety in Operations
Certified products minimize chances of sudden gasket failure, protecting equipment, workers, and industrial environments from hazardous leaks.
3. Consistent Material Quality
BIS standards maintain uniform thickness, reinforcement quality, and durability, improving reliability across different batches of production.
4. Legal Compliance and Market Approval
BIS certification enables manufacturers and suppliers to legally market their products in India without regulatory issues or penalties.
5. Increased Customer Confidence
BIS-marked rubber jointing materials gain greater acceptance among industries, contractors, and government projects, enhancing brand credibility and competitive advantage.