K-SPEC® core yarn strength retention is based on test results of components at 65°C/150°F (or less) for 6 months. K-SPEC® has a 100% strength retention when exposed to: age, 10% detergent solution, rot and mildew, sunlight and toluene; 99% strength retention when exposed to: acetic acid, gasoline, hydrochloric acid 1m, hydraulic fluid, kerosene, and sea water; 98% retention when exposed to: 25% ammonium hydroxide, 10% hypophosphite solution, and 40% phosphoric acid; 97% retention when exposed to 5m sodium hydroxide; 95% retention when exposed to Portland cement and sulfuric acid; and 88% retention when exposed to Clorox bleach, and nitric acid.
Fiber Properties |
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Nylon
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Polyester
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Aramid
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Poly-Arylate (Liquid Crystal)
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UHMviPE
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K-Spec® fiber
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Fiber Properties
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Tenacity -dry g/d
Elongation at break % Moisture Regain % Specific Gravity |
7.5 – 10.5
15 – 28 4.0 – 6.0 1.14 |
7.0 – 10.0
12-18 <0.5 1.38 |
28
4.6 2 1:38 |
26 – 29
3.8 <0.10 1.41 |
35 – 40
3.5 – 3.80 0 .97 |
35
3.8 0 1.11 |
Chemical Resistance
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Solvents
Dilute Acids: Dilute Alkalis: |
Good
Good Excel |
Good
Good Good |
Excel
Good Good |
Excel
Excel Excel |
Excel
Excel Excel |
Excel
Excel Excel |
Temperature Tolerance
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Melt Point | 425°F 218°C |
490°F 254°C |
900°F 482°C |
625°F 329°C |
300°F 149°C |
320°F 160°C |