PVC vs. Hypalon Inflatable Dinghies: What You Need to Know for Sun and Saltwater Conditions
Whether you’re cruising the coast, heading to a nearby island, or just using a tender to get from boat to shore, choosing the right inflatable dinghy material can make a big difference in performance, longevity, and overall hassle.
The two most common materials are PVC and Hypalon. While they may look similar at first glance, they behave very differently in hot, sunny, and salty environments—something anyone boating in Australian conditions should keep in mind.
1. Material Basics
- PVC (Polyvinyl Chloride):
A lightweight, cost-effective material commonly used for inflatable boats. Modern PVC often includes reinforced fabric layers for added strength, and it’s a popular choice for recreational use. - Hypalon (now known as CSM):
A synthetic rubber known for its exceptional resistance to UV rays, chemical exposure, and temperature extremes. While it costs more, it’s widely regarded as the premium choice for tough marine environments.
2. Performance Under Sun and Salt
- PVC:
UV exposure is the main enemy of PVC. Over time, intense sunlight can break down the material, leading to brittleness, fading, or seam failure—especially if the boat is left uncovered. - Hypalon:
Designed for the outdoors. It handles sun, saltwater, and abrasion extremely well. That’s why it’s the preferred material for commercial, military, and long-term marine use.
In hot, sunny climates or coastal areas, Hypalon is the more durable choice.
3. Weight and Portability
- PVC:
Lighter than Hypalon, making it easier to lift, carry, or pack down—great for roof racks, caravans, or solo launching. - Hypalon:
Heavier and a bit bulkier when deflated, but that extra weight adds to its durability and overall stability in the water.
If portability or quick setup is a top priority, PVC has the edge.
4. Covers: A Smart Investment
No matter what material your dinghy is made from, a quality cover is one of the best ways to protect it from the elements. Covers provide:
- UV protection: Reduces exposure and prevents premature wear (critical for PVC).
- Temperature control: Helps prevent overinflation from heat buildup when the boat’s left out in the sun.
- Cleanliness: Keeps out bird droppings, grime, and salt residue.
- Extended lifespan: Especially useful for boats stored on deck or outdoors year-round.
Look for covers made from UV-resistant, breathable fabrics with a snug fit. Even a lightweight cover can add years to your dinghy’s usable life.
5. Price vs. Longevity
| Feature | PVC | Hypalon |
|---|---|---|
| Cost | More affordable | More expensive up front |
| Weight | Lighter | Heavier |
| UV Resistance | Moderate (needs a cover) | Excellent |
| Lifespan | 3–5 years with good care | 10–20 years with minimal fuss |
| Best for | Occasional or seasonal use | Regular or long-term use |
6. Which Should You Choose?
- Go with PVC if you’re boating occasionally, need something lightweight and portable, and can store your dinghy out of the sun when not in use.
- Choose Hypalon if you’re boating frequently, leaving your dinghy exposed, or simply want a long-term, low-maintenance solution.
And regardless of material: get a cover. It’s one of the simplest, smartest ways to protect your investment and keep your inflatable dinghy going strong for years to come.