What are the typical density ranges of EPS foam used for maximum buoyancy?

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The density range of EPS (Expanded Polystyrene) foam used for maximum buoyancy typically falls within the range of 10 to 30 kilograms per cubic meter (kg/m³), or 0.63 to 1.88 pounds per cubic foot (lb/ft³). This range of densities allows EPS foam to provide high buoyancy while remaining lightweight.

eps pre-expander
eps pre-expander

Here are some common density ranges and their corresponding buoyancy characteristics for EPS foam:

  1. Low-Density EPS Foam: Low-density EPS foam, ranging from approximately 10 to 15 kg/m³ (0.63 to 0.94 lb/ft³), offers excellent buoyancy properties. It has a high volume of trapped air relative to its mass, resulting in increased buoyant force. This range is often used in applications where maximum buoyancy is required, such as life jackets, buoys, and floating docks.
  1. Medium-Density EPS Foam: Medium-density EPS foam, typically ranging from 15 to 20 kg/m³ (0.94 to 1.25 lb/ft³), provides a balance between buoyancy and structural integrity. It maintains good buoyancy properties while offering slightly higher strength and durability compared to lower-density foam. This range is commonly used in applications such as marine flotation devices, boat hulls, and other buoyancy-related structures.
  1. High-Density EPS Foam: High-density EPS foam, ranging from approximately 20 to 30 kg/m³ (1.25 to 1.88 lb/ft³), still provides buoyancy but with reduced overall flotation capabilities compared to lower density foam. It offers increased strength and can be suitable for certain marine applications where both buoyancy and structural support are required.

 

It’s important to note that the specific density range used for maximum buoyancy may vary depending on the design requirements and intended application. Manufacturers can adjust the density of EPS foam by EPS pre expander machine to meet the specific needs of the buoyancy-related application.

For critical applications or when designing structures with specific buoyancy requirements, it is recommended to consult with manufacturers or engineering professionals to determine the appropriate density range and ensure the foam’s buoyancy characteristics align with the desired objectives.

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