Spun polyester sewing thread is known for its resistance to moisture and certain chemicals, making it suitable for various sewing applications, including those exposed to outdoor and industrial environments.

Resistance to Moisture: Spun polyester thread is naturally hydrophobic, which means it repels water and resists absorbing moisture. This characteristic makes it ideal for sewing projects that might be exposed to rain, humidity, or damp conditions. Fabrics sewn with spun polyester thread are less likely to become waterlogged or develop mold and mildew, making them suitable for outdoor items like cushions, awnings, and outdoor clothing.

Mildew Resistance: Spun polyester thread's resistance to moisture contributes to its resistance to mildew growth. Fabrics sewn with this thread are less prone to developing mold or mildew even in humid or damp environments.

Chemical Resistance: Spun polyester thread is generally resistant to many common chemicals, including those found in cleaning agents, detergents, and mild acids. This characteristic makes it suitable for industrial applications where exposure to chemicals is a concern.

Colorfastness: Spun polyester thread also tends to hold its color well, even when exposed to moisture and sunlight. This attribute is particularly important for outdoor textiles that may face prolonged sun exposure.

Recommended Applications: Spun polyester thread's resistance to moisture and chemicals makes it suitable for a wide range of applications, including outdoor furniture, awnings, sails, upholstery, marine and boating products, workwear, and industrial sewing.

It's important to note that while spun polyester thread offers good resistance to moisture and certain chemicals, the degree of resistance can vary based on factors like thread quality, thread thickness, and specific environmental conditions. Always consider the intended use of the final product and the conditions it will be exposed to when selecting the appropriate thread for your sewing project.