Rubber End Cap

rubber end capA rubber end cap is a small piece of rubber used to cover the ends of tubes, pipes, and other objects. They are often used on metal pipes to keep the sharp edges from cutting someone or something. They can also keep water and other liquids from leaking out of the pipe. Rubber end caps come in various sizes, depending on the size of the object they are covering, and they come in different thicknesses. 

Different Types of Rubber End Caps 

Rubber end caps are used to protect the ends of objects from damage. They come in various shapes and sizes and are made from different types of rubber. Some end caps are designed for specific applications, while others can be used for many purposes.

There are three main types of rubber end caps: shrink-fit, adhesive-backed, and slip-on.

  • Shrink-fit end caps are the most common type. They are made from a rubber material that shrinks when it is heated. This end cap is secured to the object by heating it until it shrinks around its circumference.
  • Adhesive-backed end caps have an adhesive strip on the back that secures them to the object.
  • Slip-on end caps are placed over the object’s end and fastened with a band or clamp.

Manufacturing Process of Rubber End Cap

End caps are essential in the manufacturing process of rubber products. They provide a seal between the product and the mold, which is necessary to create a vacuum that pulls the rubber material into the desired shape. The end caps must be sturdy enough to withstand the pressure of the vacuum and flexible enough to deform when the rubber material is pulled into the mold.

The manufacturing process of end caps begins by heating rubber pellets until they are soft and pliable. The pellets are then compressed into a mold, forming a long tube. Air is sucked out of the tube, creating a vacuum that pulls the rubber material into the desired shape. The end caps are then cut off the tube and trimmed to size.

In RK Rubber, we make rubber end cap that has a wide range of applications, especially in the industrial, automotive, and engineering sectors. This product commonly requires a variety of resistance, especially from chemicals, tearing, abrasion, and UV/heat. That is why we use high-grade rubber materials like EPDM and silicone to meet the specification required by most of our clients. They use this part to make another product that needs high-temperature coating, sealing, and protection. By default, we produce a rubber end cap that has excellent for tubing or piping, and it has an outstanding chemical/hazardous resistance (oil, gasoline, hazards, etc.) It can also withstand up to more or less 250ºC of temperature, so it guarantees that the end cap will last longer against the heat. It has an outstanding tearing or wearing resistance because it is made from high-grade materials, making it more reliable for sealing and round tubing.

Our current product includes pricing, size, and information. You can send us a message to submit your specification. Don’t hesitate to contact our sales team to know more about the rubber end caps and other customized rubber products.

Advantages and Disadvantages

Rubber end caps have many advantages, including:

  • Inexpensive.
  • Easy to install
  • Durable.
  • Protect the object’s end from damage.

However, rubber end caps also have some disadvantages, including:

  • Difficult to remove once installed.
  • It can be torn or damaged if pulled on too hard.

Other applications of Rubber End Cup

  • They are widely used for covering and finishing touches on other products.
  • Protect edges of tubes or pipes to avoid damage to other properties
  • For capping and finishing the tubes or pipes
  • Automotive manufacturing – tubes, pipes, and hoses used in car engines and other systems must be protected from dirt and debris. Rubber end caps help keep these items clean and functioning correctly.
  • Plumbing Applications – use them to seal off the ends of tubes and pipes when they are not in use. This prevents water from seeping out and causing damage to the surrounding area. 

Features of Rubber End Cap

  • Tearing resistance
  • Withstand 200ºC to 400 ºC of temperature (depends on the specification)
  • Water/ Chemical resistance
  • A cost-effective and inexpensive solution to your needs


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Coupling | Diaphragm | Rubber Bushing | Rubber Door Seal | Rubber End Cap | Rubber Gaskets | Rubber Ring | Rubber Tubing

Marine Rubber products
Arch Rubber Dock Fender | D-Type Rubber Dock Fender

We would love to hear from you! Contact us now and look for Ms. Louise.
Landline : (02) – 8897-6651
Globe: 0915-126-7158 / Smart: 0939-149-6019
Address: #753 Quirino Highway, Brgy. San Bartolome, Novaliches, Quezon City
Landmark: St. John of Beverly, TV5 and SM Novaliches
Facebook Page: RK Rubber Enterprise Co.