2024 red paddle co racing paddle boards - 2024 range of inflatable race SUP paddle board

Welded Rail Technology on Inflatable Stand-Up Paddle Boards


Welcome to this informative video about welded rail technology for inflatable stand-up paddle boards (iSUPs). This video will explain what welded rail technology is, its benefits, and why it’s a crucial feature for your next iSUP.

Understanding Welded Rail Technology

Starboard, known as the pioneer of welded rail technology, has developed a method that significantly improves the quality and durability of iSUPs. This technology involves melting and bonding the top and bottom layers of PVC at the rail (sides of the board), creating a strong mechanical bond similar to metal welding.

The Importance of Strong Rail Bonds

A strong rail bond is vital as it’s the first area prone to leaks. Weak or leaking rails can drastically reduce performance and, if left unchecked, may lead to irreparable damage, making the board unfit for use.

Comparison with Traditional Techniques

Traditionally, the top and bottom layers of an iSUP were glued. However, with advancements like Fusion and MSL technologies, these layers are now fused at an early stage. However, it’s important to note that these technologies are different from welded rails, which specifically address the airtight sealing of the board.

The Starboard Approach

Starboard’s approach involves an initial layer of glued rail followed by an additional welded layer. This double layering ensures superior strength and durability. The welded layer is evident by the absence of glue residue and the visible melting and bonding of the material.

The Advantages of Welded Rails

  • Longevity: Welded rails significantly increase the lifespan of iSUPs.
  • Environmental Benefits: This technology is more eco-friendly, aligning with Starboard’s commitment to sustainability.
  • Performance in Harsh Conditions: Especially beneficial in hot, sunny climates where traditional glue can degrade.

Potential Drawbacks

  • Cost: The intricate process of welding rails may increase the overall cost of the board.


Welded rail technology, as demonstrated by Starboard, offers numerous advantages, making it a feature worth considering when purchasing an iSUP. It ensures longevity, environmental sustainability, and superior performance, making it a valuable investment for paddle board enthusiasts.

Join over 25k+ subscribers and sign up to our newsletter to receive news and deals...

About the author: Julian Kidd
I have been an avid stand up paddle boarder since 2009. I retired from a decade of professional kiteboarding to focus on SUP. Green Water Sports grew from this love of all things SUP. As well as being a keen paddle boarder, I'm a football fan, closet petrol head, web tinkerer, husband and father.