What Material Is Your RIB Tube Made From?
Need to know what material your RIB tube is made from before you decide if it can be repaired? That is often the first step. Most RIB tubes are made from Hypalon, PVC or polyurethane, and each material behaves differently in service. It also affects how well the tube can be repaired, how long it is likely to last and whether a full retube is the better option. If you are weighing up repair against replacement, identifying the tube material first gives you a much clearer answer.
The main RIB tube materials
Tube material affects service life, repairability, finish and long-term value. It also affects which adhesives, preparation methods and repair techniques are suitable. For that reason, identifying the material correctly is an important part of any tube assessment. It helps you avoid spending money on a repair that is unlikely to last and gives you a better basis for deciding whether to repair the tube or replace it.
The main RIB tube materials
Hypalon
Hypalon, often referred to in trade terms as CSM-based fabric, is widely regarded as the preferred material for long-term durability. It offers strong resistance to UV, heat and weathering, which is why it remains a popular choice on quality leisure, commercial and rescue RIBs. It is bonded with adhesive rather than heat welded, which also makes it a strong material for long-term repair and retube work.
Typical signs of Hypalon:
- A more matt, rubber-like finish
- A dark grey or black inner surface in many cases
- Glued seams rather than welded seams
- A fine dust when lightly abraded
PVC
PVC is widely used because it is lower in cost and suits volume production. It often has a smoother, glossier finish than Hypalon and is commonly heat welded. It can work well on many leisure boats, but it does not usually offer the same long-term ageing performance as Hypalon, especially where the boat sees heavy UV exposure or harder use.
Typical signs of PVC:
- Smooth, glossy finish
- Inside colour often matches the outside
- Welded or fused-looking seams
- Surface scratches rather than producing dust when abraded
Polyurethane
Polyurethane, often shortened to PU, is used on some specialist, commercial and military applications. It is usually tougher and stiffer than both Hypalon and PVC, with strong abrasion resistance. Even so, it is also harder to work with and harder to repair once badly damaged.
Typical signs of PU:
- A very stiff feel
- A shinier, harder surface
- Welded seams
- Inside colour often matches the outside
How to tell if your RIB tubes are Hypalon, PVC or PU
Check the inside face
If the inside face is dark grey or black, that often points to Hypalon. If the inside colour matches the outside, the tube is more likely to be PVC or PU.
Look at the seams
If the seams look heat welded or fused, the tube is more likely to be PVC or PU. If the seams are glued, Hypalon is more likely.
Assess the surface finish
Hypalon usually has a more matt, rubbery surface. PVC tends to look smoother and glossier. PU often feels harder and more rigid again.
Try a light abrasion test
A light abrasion test on a small area can help. Hypalon tends to dull and produce a fine dust. PVC and PU are more likely to mark or scratch. This test should be carried out carefully and only where appropriate.
Can Hypalon, PVC and PU tubes all be repaired?
Not always. Hypalon is often the best material for repair work because it bonds well and tends to age better over time. PVC and PU can be more difficult to repair reliably, especially as the material gets older. In some cases, a repair is still possible. In others, the condition of the tube makes a full retube the more practical answer.
When repair is sensible and when a retube is the better option
If the damage is localised and the base material is still sound, a repair is often worth considering. But if the surface has worn back, the weave is becoming exposed, seams are failing or there are multiple weak areas, a full retube is often the better long-term option. That is especially true where reliability matters, such as on commercial, rescue or hard-worked leisure RIBs.
Need help identifying your tube material?
If you are not sure what your RIB tubes are made from, we can assess the material, the condition and the likely repairability of the existing tube. We can then advise whether a repair, replacement collar or full retube is the better route for your boat.
Related Pages
Related RIB tube, repair and retube services
Need to identify your tube material before deciding on repair or replacement? These related pages cover retubing, repairs, new Hypalon tubes and trade supply.
RIB Retube
Full retube and replacement tube work manufactured from Orca Hypalon to suit the boat, layout and intended use.
RIB Repairs
Repair services for damaged, ageing or worn inflatable tubes, with practical advice on when repair still makes sense.
New Hypalon Tubes
New Hypalon tubes and collars built from Orca fabric for leisure, commercial and specialist rigid inflatable boats.
Trade and OEM
Support for builders, fleet operators and trade customers needing replacement tubes, collars and OEM inflatable supply.