SELECTING THE RIGHT THREAD
Thread is a small piece of a sewing project but its importance is undeniable. Selecting the right thread for your application ensures that you will get the best performing seams. One key factor to keep in mind is the end location of the projects. Outdoor projects require threads that can stand up to the weather, while interior pieces have different performance needs.
Indoor vs. Outdoor Applications
Outdoor applications require specific traits such as UV resistance, high strength and resistance to abrasion, mildew and often saltwater to ensure it will last in a variety of weather conditions.
For indoor applications, the UV resistance becomes less important and abrasion resistance and stretch become more important. Upholstery applications, for example, require a thread that has good elasticity so it will give and recover when you sit on it.
These threads will outlast your fabric! We carry two brands of lifetime threads: One is made from a unique fluoropolymer and the other is made from polytetrafluoroethylene (PTFE). Both of these brands carry a lifetime guarantee. These threads are unaffected by exposure to UV rays, harsh cleaning agents, pollution, saltwater, rain, snow, cold and rot. Lifetime threads carry a lot of performance benefits, but they are a little pricey. They are much more expensive upfront but will require less re-stitching over the lifetime of your upholstery. Lifetime threads are often used for outdoor, marine,shade sails and awning applications.
Polyester is known for its strength, durability, and low shrinkage and stretch. It's the most common thread for outdoor applications. Compared to nylon thread, polyester thread has superior resistance to UV rays and moisture, but much of its strength is lost after prolonged exposure to sunlight. Polyester thread comes in a variety of colors to match your fabric, but the colors will fade to white over time in the sun. We recommend using a UV treated polyester thread for outdoor cushions and upholstery, sails, outdoor canvas covers, boat covers, awnings, tents and tarps.
Nylon is one of the strongest synthetic threads in use today. It has a high strength-to-size ratio in comparison to polyester thread and is also known for its flexibility and stretch. The high tensile strength of nylon makes it ideal for heavy fabrics used in home décor. The added elasticity is also ideal for upholstery applications. While nylon is a great general-purpose thread, we do not recommend it for outdoor applications. Nylon does not have the UV resistance of polyester thread and will not last as long outside, but is fine for indoor upholstery.