Q
what is the specific gravity of polypropylene
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The specific gravity of polypropylene (PP) typically ranges from 0.9 to 0.91. This value indicates how much heavier polypropylene is compared to water; a value less than 1 means that polypropylene is lighter than water and will float. Polypropylene is a thermoplastic polymer widely used in various applications due to its excellent resistance to chemicals, flexibility, and high melting point. Its low specific gravity makes it particularly useful in industries where weight reduction is essential, such as automotive and packaging. However, the specific gravity can vary slightly depending on the manufacturing process and additives used, which can affect the density and thus the specific gravity of the final product.
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