Perma Spun?/font> Specifications
Fiber Type: Polyester
Thread Construction: Spun
Application: General - for sewing anything from light weight garments like blouses & dresses to heavy weight garments like jeans, gloves, mattresses, etc.
 

Sizes Available
Light: T-21, T-27 Medium:  T-40, T-45 Heavy: T-60, T-70 Extra Heavy: T-90, T-105, T-120, T-135

Advantages

Reduced variation in construction. Excellent lubricity. Stronger than cotton threads of equal size. Excellent seam strength. Very good chemical resistance. Very good abrasion resistance. Very good colorfastness. Less expensive than core threads.

Comments

Melts when temperatures exceed 480?F - not as good resistance to needle heat as D-Core. On certain types of sewing machines, it may not sew as well as core threads.