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SAUNDERS THREAD SPECIFICATIONS
KEMFAST® POLYESTER THREAD

KEMFAST® is a continuous multifilament synthetic sewing thread developed by Suanders Thread which is widely used in a variety of sewing operations ranging from upholstery and leather goods to government contract work. The primary types of Kemfast are referred to by the prefix "S" or "B" designated soft or bonded respectively. Both types are engineered and processed to result in relatively low elongation, to yield maximum yardage per pound, and to provide excellent sewing performance.

SOFT AND BONDED KEMFAST

Ticket
Size
Government
VT - 285*
Types I & 11
MIL-DTL-32072
Approximate Single
End Strength
(pounds)
Approximate Yards
per pound
Soft
Approximate Yards
per pound
Bonded
23 A/3 3.4 19,080  
33 AA/3 4.5 13,910 13,430
46 B/2 7.1 9,257 8,911
69 E/3 10.6 5,930 5,637
92 F/4 14.2 4,590 4,330
138 FF/3 21.2 3,100 2,904
207 3/3 31.9 2,020 1,938
277 4/3 40.6 1,520 1,440
346 5/3 53.1 1,193 1,125
415 6/3 62.8 994 937

*Available in General Purpose and Non-Wick Finish

FINISHES

KEMFAST soft and bonded, is finished with lubrications that are specially designed for the sewing operations involved. These lubricants are formulated from carefully selected combinations of waxes, silicones, and oils. They provide consistent machine tensions and loop formation and in addition, afford protection from needle heat to insure good sewability. Non-silicone finishes are also available on request.

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Updated July 29, 2013