3M™ CoTran™ Nonwoven Backings
3M CoTran Nonwoven Backings are breathable nonwoven materials that combine high transmission of moisture vapor and oxygen with multi-directional stretch and strength, making them ideal for large area patches and for use over highly-flexible body areas.
3M™ CoTran™ 9700 Melt-blown Polyurethane Nonwoven Backing
This backing is a soft, conformable, melt-blown polyurethane, nonwoven that has multidirectional stretch properties. The standard beige product is supplied in a roll with a carrier for easy handling.
- Soft, skin-like texture
- Multi-directional stretch
- No binders
- Excellent chemical resistance
- Non-occlusive
- Provided on carrier for ease of handling
- Can be directly laminated to adhesive
- Manufactured for use in pharmaceutical products
| Material Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper |
| No carrier | 9 mils | 228 μm |
| With carrier | 14 mils | 355 μm |
| Tensile |
| MD | 4.2 lbs./in. | 18.7 N/25.4 mm |
| CD | 3.4 lbs./in. | 15.1 N/25.4 mm |
| Elongation |
| MD | 500% | 500% |
| CD | 500% | 500% |
| MVTR |
| (g/m2/24 hr) | 8408 | 8408 |
| Removal from Carrier | 2.1 oz./in. width | 60 g/25.4 mm |
Download Product Information Sheet (PDF, 170KB)
