How does the weight of the fabric compare to other materials commonly used in inflatable boat construction?

The weight of inflatable boat fabric is an important consideration, as it affects portability, ease of handling, and overall performance. Here's a comparison of the weight of commonly used materials in inflatable boat construction:

Common Fabrics Used in Inflatable Boat Construction
PVC (Polyvinyl Chloride):

Weight: PVC fabrics typically range from 0.6 to 1.5 kg/m2 (about 18 to 44 oz/yd2), depending on the thickness and the presence of reinforcements.
Advantages: PVC is lightweight, cost-effective, and easy to handle, making it a popular choice for recreational inflatable boats. It provides a good balance of durability and affordability.
Disadvantages: It may not be as durable as Hypalon in harsh environmental conditions and has a shorter lifespan.
Hypalon/CSM (Chlorosulfonated Polyethylene):

Weight: Hypalon fabrics usually weigh more, ranging from 1.0 to 1.8 kg/m2 (about 30 to 53 oz/yd2).
Advantages: Hypalon is highly resistant to UV light, chemicals, and extreme temperatures. It offers superior durability and longevity, making it ideal for professional and heavy-duty applications.
Disadvantages: Hypalon is heavier and more expensive than PVC, which can affect portability and initial cost.
PU (Polyurethane):

Weight: Polyurethane fabrics generally weigh between 0.5 and 1.2 kg/m2 (about 15 to 35 oz/yd2).
Advantages: PU offers excellent abrasion resistance and flexibility. It's lightweight and can be manufactured to provide high puncture and tear resistance.
Disadvantages: While more durable than PVC, PU can be more expensive and less common in consumer-grade inflatable boats.
Comparison with Other Materials
Neoprene:

Weight: Similar to Hypalon, neoprene-coated fabrics can range from 1.0 to 1.5 kg/m2 (30 to 44 oz/yd2).
Advantages: Neoprene provides good resistance to weathering and chemicals. It is often used in combination with other materials, such as Hypalon, to enhance performance.
Disadvantages: Neoprene can be heavy and expensive, and it is typically used in more specialized or high-end applications.
Nylon/Polyester Fabrics (uncoated):

Weight: Uncoated nylon and polyester fabrics are significantly lighter, usually around 0.1 to 0.3 kg/m2 (3 to 9 oz/yd2).
Advantages: These fabrics are lightweight and strong, often used as the base layer for coated fabrics.
Disadvantages: Without a protective coating, they lack the necessary puncture and abrasion resistance for inflatable boats.
Summary of Weight Comparison
PVC: Lightweight to moderate, generally around 0.6 to 1.5 kg/m2.
Hypalon/CSM: Moderate to heavy, typically 1.0 to 1.8 kg/m2.
Polyurethane: Lightweight to moderate, usually 0.5 to 1.2 kg/m2.
Neoprene: Moderate, around 1.0 to 1.5 kg/m2.
Uncoated Nylon/Polyester: Very lightweight, 0.1 to 0.3 kg/m2.