Due to its high tensile strength, 69 bonded nylon thread is the popular choice for sewing upholstery, leather, vinyl, and other heavy fabrics.
It doesn't rot, is resistant to chemicals and mold, and has excellent shock absorption properties.
Effect of Heat: Stitcks at 445 degrees Fahrenheit. Melts at 485 to 500 degrees Fahrenheit. Yellows at 300 degrees Fahrenheit when held for 5 hours
Effects of Bleaches and Solvents: Can be bleached in most bleaching solutions. Generally insoluble in most organic solvents. Soluble in some phenolic compounds.
Effects of Acids and Alkalis: Unaffected by most mineral acids, except hot mineral acids. Dissolves with partial decomposition in concentrated solutions of hydrochloric, sulphuric and nitric acids. Soluble in formic acids. Substantially inert in alkalis.
Effects of Mildew, Aging, Sunlight and Abrasion: Excellent resistance to mildew, aging and abrasion. Prolonged exposure to sunlight causes some deterioration.
Dyes Used: Disperse, acid and premetalized are usually preferred, but most other classes are allowed.
