|
Cotton (Spun Yarn)
|
Nylon (Multi-filament)
|
Polyester (Multi-filament)
|
Polypropylene (Multi-filament)
|
Polypropylene (Monofilament)
|
Breaking Tenacity (Grams per Denier)
|
3 to 5 gpd |
5.9 to 9.5 gpd |
6.0 to 9.5 gpd |
2.5 to 8.0 gpd |
3.5 to 7.0 gpd |
Stretch Elongation at Break Point (%)
|
3% to 7% |
15% to 28% |
12% to 14% |
20% to 100% |
14% to 30% |
Elastic Recovery (%)
|
74% at 2% 45% at 5% |
99% at 2% 89% at 3% |
99% at 2% 88% at 5% |
98% at 5% 95% at 10% |
98% at 5% |
Specific Gravity
|
1.54 |
1.14 |
1.38 |
0.91 (Floats) |
0.91 (Floats) |
Moisture Absorbency
|
Good resistance |
Excellent resistance |
Excellent resistance |
Good resistance |
Good resistance |
Abrasion Resistance
|
Good resistance |
Excellent resistance |
Excellent resistance |
Good resistance |
Good resistance |
Effect of Heat
|
Decomposes 302° |
Yellows at 300° Melts at 482° |
Melts at 482° |
59% tensile at 200° Melts at 320° |
50% tensile at 200° Melts at 330° |
Effects of Age
|
Negligible |
None |
None |
Negligible |
Negligible |
Effects of Sunlight
|
Loses strength |
Loses strength after prolonged exposure |
Loses strength after prolonged exposure |
Good resistance to indirect sunlight |
Good resistance if uv-stabilized |
Effects of Acids
|
Disintegrates in concentrated solutions |
Good resistance Dissolves in sulfuric acids |
Good resistance Dissolves in sulfuric acids |
Good resistance except with oxidizing agents |
Good resistance except with oxidizing agents |
Effects of Alkalis
|
Swelling, but no damage |
Inert |
Moderate |
Good resistance |
Good resistance |
Effects of Organic Solutions
|
Resistant to common solvents |
Resistant. Soluble in phenolic and formic acid |
Resistant. Soluble in phenolic acid |
Insoluble in most except chlorinated hydrocarbons |
Insoluble in most except chlorinated hydrocarbons |
Resistance to Moths
|
Not attacked |
Not attacked |
Not attacked |
Not attacked |
Not attacked |
Resistance to Mildew
|
Poor unless bleached |
Not attacked |
Not attacked |
Not attacked |
Not attacked |
Identification
|
Melts before burning. Burns rapidly |
Melts before burning. Forms hard bead. Celery odor |
Floats. Forms hard bead. Pungent odor |
Melts before burning. Burning asphalt odor |
Floats. Melts before burning. Burning asphalt odor |