Spun Polyester 3/20 is an industrial-grade, heavy-duty sewing thread manufactured from 100% staple polyester fibers. Designed for applications requiring exceptional seam durability and high breaking strength, this thread is built to withstand extreme mechanical tension in heavy industrial and stitching environments.
Key Features
01
High Tensile Strength
Engineered specifically to hold heavy seams together securely without stretching or breaking under severe pressure.
02
Chemical & Weather Resistance
Unaffected by water, dampness, and most chemical exposures, making it ideal for rugged storage conditions.
03
Smooth Runability
Offers consistent twist and low lint, allowing industrial and heavy-duty sewing machines to run smoothly at high speeds without frequent thread jams.
Technical Data
Product Name
Spun Polyester 3/20
Material
100% Spun Polyester Staple Fiber
Denier / Count
3/20 (3-Ply Twisted)
Specific Gravity
Approx. 1.38 g/cm³
Colors
White, Black & Custom Colors Available
Yarn Type
Spun Polyester Multi-Ply Twisted Sewing Thread
Tenacity
High Tenacity
Melting Point
Approx. 255°C – 265°C
Applications
Heavy-Duty Industrial Stitching
Used in thick canvas materials, heavy protective covers, tarpaulins, and industrial textiles.
Specialized Bag and Sack Closing
Applied where extra-thick, high-load sack stitching is required beyond standard bag-closing threads.
Industrial Filtration Bags
Extensively used in manufacturing dust collector bags and industrial filtration units that operate under rigorous conditions.
Heavy Tarpaulins & Canvas Covers
Ideal for stitching heavy-duty truck covers, outdoor tents, and protective canvas shelters.
Safety Nets & Gear
Applied in stitching industrial safety nets and rugged outdoor equipment.
Compatible Machines
Heavy-Duty Industrial Sewing Machines
Suitable for stitching thick canvas, tarpaulins, industrial textiles, and protective covers.
Portable Bag Closer Machines
Compatible with heavy-duty portable sack-stitching machines for specialized bag and sack closing.
Walking Foot Sewing Machines
Ideal for sewing multiple layers of heavy materials such as upholstery, leather, canvas, and webbing.
