

Sewing thread 40/2
Spool 5000 yards (4500m)
Suitable for household and industrial machines.
Colors are similar to the color of cotton cord.
The color of the thread on each device may differ.
In stock
Features
|
Polyamide (kapron) | Polypropylene | Polyester (Lavsan) | Cotton |
| Density | 1.14 g/cm3 | 0.91 g/cm3 | 1.38 g/cm3 | 1.50 g/cm3 |
| Softening temperature | 170 °C | 140 °C | 225 °C | |
| Melting temperature | 215 °С | 165 °С | 260 °С | |
| Elongation at break | up to 50% | up to 30% | up to 30% | Up to 30% |
| Wet breaking load | loss up to 15% (breaking load is restored upon drying) | does not lose | does not lose | increase up to 15% |
| Resistance to sunlight | Insufficient | Insufficient (when adding light stabilizers and dyes, they are resistant to light and atmospheric conditions and almost do not lose strength for a long time) | Good | Average |
| Resistance to temperature from –40 to +60 | Good | Insufficient | Good | |
| Resistance to acids | Insufficient | Good | Good | Damaged |
| Resistance to alkalis | Good (damaged in hot alkalis) | Good | Fair (damaged in concentrated and hot alkalis) | Damaged |
| Resistance to microorganisms (rot, mold) | Good | Good | Good | Prone to rot |
| Insects | Not edible | Not edible | Not edible | |
| Fire | Hardly flammable | Hardly flammable | Hardly flammable | Highly flammable (does not emit harmful substances when burned) |
| Flexibility | Good | Sufficient (decreases at negative temperatures) | Good | Good |
| Energy absorption capacity | High | Sufficient | Good | |
| Resistance to shock loads (jerks) | Good | Sufficient | Sufficient | |
| Electrostatic properties | Dielectric | Dielectric | Dielectric | Dielectric |
| Moisture absorption | 4% | 0% | 0.4% | 8.5% |