KEVLAR® IS THE REGISTERED TRADEMARK FOR DuPont's family of high-temperature-resistant aramid fibers having a unique combination of toughness, extra-high strength and exceptional thermal stability. SAUNDERS THREAD manufactures both continuous multifilament and spun KEVLAR® for a variety of sewing operations. Continuous multifilament KEVLAR® is available in both soft and bonded, but only in natural yellow color. Spun KEVLARŪ is available in a range of package dyed colors. There will be strength loss when dying the Spun KEVLAR®. This should be taken into consideration when selecting the correct Tex and Yarn Size. The spun fiber is considered un-dyeable and some variation can be seen from one lot to the next.
FILAMENT KEVLAR® A-A-55220
| Tex Size |
Appoximate Denier |
Ply | Yards
Per Lb. Minimum |
Breaking
Strength Minimum Pounds |
| 40 | 400 | 2 | 10,000 | 14 |
| 60 | 600 | 3 | 6,700 | 23 |
| 80 | 800 | 4 | 5,000 | 30 |
| 120 | 1200 | 3 | 3,350 | 45 |
| 210 | 2000 | 5 | 2,100 | 64 |
| 400 | 4000 | 4 | 1,050 | 135 |
| 450 | 4500 | 3 | 900 | 150 |
| 800 | 7500 | 5 | 500 | 225 |
Bonded finish will average about 94% of minimum yardage.
FIBER TECHNICAL INFORMATION
KEVLAR®: A manufactured fiber in which the fiber forming substance is a long chain synthetic polyamide in which at least 85% of the amide linkages are attached directly to two aromatic rings.
EFFECTS OF HEAT: Difficult to ignite. Does not propagate flame. Does not melt. Decomposes at 900° F
EFFECTS OF BLEACHES & SOLVENTS: Should not be bleached. Excellent solvent resistance.
DYES USED: Filament KEVLAR® - producer colored only. Filament KEVLAR® cannot be dyed.
RESISTANCE TO MILDEW, AGING, SUNLIGHT, ABRASION: Excellent resistance to mildew and aging. Prolonged exposure to sunlight causes deterioration, but fibers self-screening. Good abrasion resistance.
| SAUNDERS THREAD COMPANY |
1004 East Long Avenue |
![]() |