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Breaking Strength (Grams per Denier)
21.7gpd
Specific Gravity
1.44
Stretch Elongation at Break Point
2.5%
Elastic Recovery
100%
Moisture Absorbancy
4.5%
Effect of Heat
Decomposes at 930° F
Effect of Acids
Resists most acids. Some strength lost after long exposure.
Effect of Alkalis
Generally good resistance.
Effect of Organic Solvents
Unaffected. Should not be bleached.
Effect of Sunlight
Loses strength after prolonged exposure.
Effect of Age
Excellent resistance.
Resistance to Mildew
Not attacked.
Abrasion Resistance
Good
Identification
Does not melt. Decomposes at 930° F
Breaking Strength (Grams per Denier)
3 to 5gpd
Specific Gravity
1.54
Stretch Elongation at Break Point
3 to 7%
Elastic Recovery
74 @ 2%
45 @ 5%
Moisture Absorbancy
24 to 27%
Effect of Heat
Decomposes at 302° F
Effect of Acids
Disintegrates in concentrated solutions.
Effect of Alkalis
Swelling, bit no damage.
Effect of Organic Solvents
Resistant to common solvents.
Effect of Sunlight
Loses strength.
Effect of Age
Negligible
Resistance to Mildew
Poor unless bleached.
Abrasion Resistance
Good resistance.
Identification
Burns rapidly.
Breaking Strength (Grams per Denier)
9.6gpd
Specific Gravity
2.5
Stretch Elongation at Break Point
3.1%
Elastic Recovery
100%
Moisture Absorbancy
None
Effect of Heat
75% Tensile at 65° F. Melts at 2050° F.
Effect of Acids
Resists most acids.
Effect of Alkalis
Unaffected
Effect of Organic Solvents
Unaffected
Effect of Sunlight
Excellent resistance.
Effect of Age
Excellent resistance.
Resistance to Mildew
Not attacked.
Abrasion Resistance
Good
Identification
Does not burn. Melts at 2050° F.
Breaking Strength (Grams per Denier)
5 to 7gpd
Specific Gravity
1.5 to 1.6
Stretch Elongation at Break Point
5 to 13%
Elastic Recovery
75 @ 2%
Moisture Absorbancy
30 to 35%
Effect of Heat
Loses strength over 180° F
Effect of Acids
Disintegrates.Very poor.
Effect of Alkalis
Very poor.
Effect of Organic Solvents
Poor resistance.
Effect of Sunlight
Loses some strength
Effect of Age
Negligible
Resistance to Mildew
Poor
Abrasion Resistance
Good
Identification
Burns like wood, hairy fibers.
Breaking Strength (Grams per Denier)
5.7 to 9.5gpd
Specific Gravity
1.14
Stretch Elongation at Break Point
15 to 28%
Elastic Recovery
99 @ 5%
89 @ 8%
Moisture Absorbancy
4.2 to 8%
Effect of Heat
Yellow at 300° F
Melts at 480° F
Effect of Acids
Good resistance. Dissolves in sulfuric acid.
Effect of Alkalis
Inert
Effect of Organic Solvents
Resistant. Soluble in phenolic and formic acid.
Effect of Sunlight
Loses strength after prolong exposure.
Effect of Age
None
Resistance to Mildew
Not Attacked.
Abrasion Resistance
Excellent resistance
Identification
Melts before burning. Forms hard bead. Celery odor.
Breaking Strength (Grams per Denier)
6 to 9.5gpd
Specific Gravity
1.38
Stretch Elongation at Break Point
12 to 14%
Elastic Recovery
99 @ 2%
88 @ 2%
Moisture Absorbancy
0.4%
Effect of Heat
Melts at 482° F
Effect of Acids
Good resistance. Dissolves in sulfuric acid.
Effect of Alkalis
Moderate
Effect of Organic Solvents
Resistant. Soluble in phenolic acid.
Effect of Sunlight
Loses strength after prolonged exposure.
Effect of Age
None
Resistance to Mildew
Not attacked.
Abrasion Resistance
Excellent resistance
Identification
Melts before burning. Forms hard bead. Pungent odor.
Breaking Strength (Grams per Denier)
3.5 to 7gpd
Specific Gravity
0.91 (floats)
Stretch Elongation at Break Point
14 to 30%
Elastic Recovery
98 @ 5%
Moisture Absorbancy
Negligible
Effect of Heat
50% Tensile at 200° F
Melts at 330° F
Effect of Acids
Good resistance except with oxidizing agents.
Effect of Alkalis
Good resistance.
Effect of Organic Solvents
Insoluble in most except chlorinated hydrocarbons.
Effect of Sunlight
Good resistance if UV-stabilized.
Effect of Age
Negligible
Resistance to Mildew
Not attacked.
Abrasion Resistance
Good resistance.
Identification
Floats. Melts before burning, Forms hard bead. Burning asphalt odor.
Breaking Strength (Grams per Denier)
Specific Gravity
0.91 (floats)
Stretch Elongation at Break Point
20 to 100%
Elastic Recovery
98 @ 5%
95 @ 10%
Moisture Absorbancy
Negligible
Effect of Heat
50% Tensile at 200° F
Melts at 320° F
Effect of Acids
Good resistance except with oxidizing agents.
Effect of Alkalis
Good resistance.
Effect of Organic Solvents
Insoluble in most except chlorinated hydrocarbons.
Effect of Sunlight
Good resistance to indirect sunlight.
Effect of Age
Negligible
Resistance to Mildew
Not attacked.
Abrasion Resistance
Good resistance.
Identification
Floats. Melts before burning, Forms hard bead. Burning asphalt odor.
