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The Diverse Industrial Uses of Backer Rod

August 18, 2023
The Diverse Industrial Uses of Backer Rod

Polyethylene foam is one of the most common polymers in the world. The applications of PE foam in packaging is well known. The flexibility, versatility, softness, and moisture-resistant ability of PE foam make it the perfect cushioning material for packaging. Did you know that PE foam is also widely used in the construction industry? Backer rods, also known as soft rods, made using polyethylene foam are widely used in the construction industry. In this blog, we discuss the diverse industrial applications of backer rods. 

How is Backer Rod Used Today?

  • As mentioned above. one of the primary uses of backer rods is in construction projects. This flexible and versatile material serves as a filler or joint backing material, providing support and stability to sealant joints. Soft rods also minimize the amount of caulking material required, thus helping contractors save money.

  • Soft rods play a crucial role in sealing gaps and cracks around windows, doors, and other joints. By inserting it into these gaps before applying sealants like caulk or silicone, the backer rod helps create a more efficient and durable seal.

  • PE foam rods also are widely used in plumbing systems. Too much void between pipes and the walls can create an unnecessary vacuum, thus creating problems. Soft rods can be used to fill voids between pipes and concrete structures or walls to prevent water leakage.
  • The automotive industry benefits from PE foam rods too. It can be employed for weatherstripping purposes by filling gaps between car panels or windows to enhance insulation against noise and drafts.


In today's industrial world, the backer rod has become an essential component in various applications. Its versatility and effectiveness make it a popular choice for professionals across different sectors. From construction to plumbing, backer rod plays a crucial role in sealing joints and preventing air or water leakage. Alcot Plastics Ltd. is a leading manufacturer and supplier of PE foam products, including pool noodles, soft rods, and screening splines. Contact us today to get a free quote.