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The two types of rubber lining processes:
Hot vulcanising:
The procedure of hot bonding, which produces a seamless, robust, and long-lasting adhesive, involves applying uncured rubber to a surface and then curing it—usually with steam in an autoclave under controlled pressure and temperature for the best properties. This technique offers better durability than cold bonding and is especially appropriate for chemical reaction vessels and abrasive slurry handling applications.
Cold bonding:
Cold bonding is the process of gluing strips of rubber lagging straight onto the steel pulley. This technique has been used for many years due to its convenience and cost-efficiency. Cold bonding is less involved compared to hot vulcanising and can be performed on-site when sudden lagging problems arise.
| Hot Bonding | Cold Bonding |
| High application cost | Low application costs |
| Complicated and more time-consuming process | Convenient and shorter lead time |
| Better performance and Longer Service Life | Shorter service life |
| Strong Bond adhesion, less prone to failure. | Weak Bond adhesion, more potential for failure |
| Requires special and large equipment | Doesn’t require any special equipment |
| Difficult to perform On-site | Easy to perform On-site |
What are the different types of rubber lagging?
Rubber lagging comes in various types, each designed to meet specific operational requirements and conditions. The main types include:
i) Plain Rubber Lagging: This is the most basic type, featuring a smooth rubber surface. It is suitable for general-purpose applications where slippage is minimal and grip requirements are moderate.
ii) Diamond Rubber Lagging: Also known as rhomboid lagging, this type has a diamond-shaped pattern on the surface. It enhances grip and is ideal for conditions where there is moderate to high slippage.
iii) Herringbone Rubber Lagging: Featuring a chevron pattern, this lagging type offers excellent traction and is particularly effective in applications with high slippage and wet conditions. It helps to channel water and debris away from the belt.
iv) Ceramic-Embedded Rubber Lagging: This combines rubber with ceramic tiles embedded in the surface. It provides superior abrasion resistance and is suitable for extremely harsh conditions, such as mining operations.