Membranes
3M™ CoTran™ Membranes
3M offers a wide variety of ethylene vinyl acetate films for use as membranes in transdermal drug delivery systems. These intact (continuous) film membranes are manufactured using a melt-cast process which allows tight caliper control and yields superior film quality. Commonly used in reservoir and multi-layer drug-in-adhesive systems, the surface textures of these films improve both web handling and bonding between the membrane and the adhesive.
The variety of CoTran™ membrane films offers a wide range of permeability and can be customized to meet your product delivery needs. These conformable films are heat-sealable and can be directly laminated to adhesives.
3M™ CoTran™ 9702 Controlled Caliper Ethylene Vinyl Acetate Film
3M™ CoTran™ 9705 Controlled Caliper Ethylene Vinyl Acetate Film
3M™ CoTran™ 9706 Controlled Caliper Ethylene Vinyl Acetate Film
3M™ CoTran™ 9707 Controlled Caliper Ethylene Vinyl Acetate Film
3M™ CoTran™ 9712 Controlled Caliper Ethylene Vinyl Acetate Film
3M™ CoTran™ 9715 Controlled Caliper Ethylene Vinyl Acetate Film
3M™ CoTran™ 9716 Controlled Caliper Ethylene Vinyl Acetate Film
3M™ CoTran™ 9728 Controlled Caliper Ethylene Vinyl Acetate Film
These products are supplied in roll form for use in the fabrication of transdermal, topical and transmucosal drug delivery systems. CoTran™ membrane films are manufactured under IPEC cGMP guidelines and supported by Drug Master Files (DMFs).
Use the Component Selection Guide for help identifying Membranes suited for your application.
3M™ CoTran™ 9702 Controlled Caliper Ethylene Vinyl Acetate (EVA) Film
A controlled caliper monolayer film suitable for use as a rate controlling membrane. Its surface texture improves both web handling and bonding between the membrane and the adhesive.
- 9% vinyl acetate
- Translucent
- No Corona treatment
- Uniform 2 mil caliper, crossweb and downweb
- Heat-sealable
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 2 mils | 50.8 μm |
| % Vinyl Acetate | 9% | 9% |
| Tensile |
| MD | 4.4 lbs./in. | 19.6 N/25.4 mm |
| CD | 2.0 lbs./in. | 8.9 N/25.4 mm |
| Elongation |
| MD | 200% | 200% |
| CD | 300% | 300% |
| MVTR |
| (g/m2/24 hr) | 52.8 | 52.8 |
Download Product Information Sheet (PDF, 106KB)
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3M™ CoTran™ 9705 Controlled Caliper Ethylene Vinyl Acetate (EVA) Film
A controlled caliper monolayer film suitable for use as a rate controlling membrane. Its surface texture improves both web handling and bonding between the membrane and the adhesive.
- 9% vinyl acetate
- Translucent
- Uniform 3 mil caliper, crossweb and downweb
- Heat-sealable
- No corona treatment
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 3 mils | 76.2 μm |
| % Vinyl Acetate | 9% | 9 % |
| Tensile |
| MD | 4.4 lbs./in. | 19.6 N/25.4 mm |
| CD | 2.0 lbs./in. | 8.9 N/25.4 mm |
| Elongation |
| MD | 200% | 200% |
| CD | 300% | 30% |
| MVTR |
| (g/m2/24 hr) | 35.2 | 35.2 |
Download Product Information Sheet (PDF, 156KB)
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3M™ CoTran™ 9706 Controlled Caliper Ethylene Vinyl Acetate (EVA) Film
A controlled caliper monolayer film suitable for use as a rate controlling membrane. Its surface texture improves both web handling and bonding between the membrane and the adhesive.
- 9% vinyl acetate
- Translucent
- Corona-treated on one side
- Uniform 4 mil caliper, crossweb and downweb
- Heat-sealable
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 4 mils | 101.6 μm |
| % Vinyl Acetate | 9% | 9% |
| Tensile |
| MD | 4.4 lbs./in. | 19.6 N/25.4 mm |
| CD | 2.0 lbs./in. | 8.9 N/25.4 mm |
| Elongation |
| MD | 200% | 200% |
| CD | 300% | 300% |
| MVTR |
| (g/m2/24 hr) | 26.4 | 26.4 |
Download Product Information Sheet (PDF, 156KB)
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3M™ CoTran™ 9707 Controlled Caliper Ethylene Vinyl Acetate (EVA) Film
controlled caliper monolayer film suitable for use as a rate controlling membrane. This film has a lower vinyl acetate content and provides an additional choice in your EVA film solutions. Its surface texture improves both web handling and bonding between the membrane and adhesive.
- 4.5% vinyl acetate
- Translucent
- Uniform 2 mil caliper, crossweb and downweb
- Heat-sealable
- Corona treated on both sides
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 2 mils | 50.8 μm |
| % Vinyl Acetate | 4.5% | 4.5% |
| Tensile |
| MD | 4.0 lbs./in. | 17.8 N/25.4 mm |
| CD | 2.0 lbs./in. | 8.9 N/25.4 mm |
| Elongation |
| MD | 200% | 200% |
| CD | 300% | 300% |
| MVTR |
| (g/m2/24 hr) | 15.7 | 15.7 |
Download Product Information Sheet (PDF, 278KB)
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3M™ CoTran™ 9712 Ethylene Vinyl Acetate (EVA) Film
A controlled caliper monolayer film suitable for use as a rate controlling membrane. The higher percentage of vinyl acetate increases the lipophilicity of the membrane.
- 19% vinyl acetate
- Controlled Caliper
- Translucent
- No Corona-treatment on either side
- Uniform 2 mil caliper, crossweb and downweb
- Heat-sealable
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 2 mils | 50.8 μm |
| % Vinyl Acetate | 19% | 19% |
| Tensile |
| MD | 4.4 lbs./in. | 21.6 N/25.4 mm |
| CD | 2.6 lbs./in. | 11.8 N/25.4 mm |
| Elongation |
| MD | 300% | 300% |
| CD | 600% | 600% |
| MVTR |
| (g/m2/24 hr) | 97.2 | 97.2 |
Download Product Information Sheet (PDF, 275KB)
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3M™ CoTran™ 9715 Controlled Caliper Ethylene Vinyl Acetate (EVA) Film
A controlled caliper monolayer film suitable for use as a rate controlling membrane. The higher percentage of vinyl acetate increases the lipophilicity of the membrane.
- 19% vinyl acetate
- Translucent
- Corona-treated on both sides
- Uniform 3 mil caliper, crossweb and downweb
- Heat-sealable
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 3 mils | 76.2 μm |
| % Vinyl Acetate | 19% | 19% |
| Tensile |
| MD | 6.6 lbs./in. | 29.4 N/25.4 mm |
| CD | 4.4 lbs./in. | 19.6 N/25.4 mm |
| Elongation |
| MD | 300% | 300% |
| CD | 600% | 600% |
| MVTR |
| (g/m2/24 hr) | 64.8 | 64.8 |
Download Product Information Sheet (PDF, 171KB)
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3M™ CoTran™ 9716 Controlled Caliper Ethylene Vinyl Acetate (EVA) Film
A controlled caliper monolayer film suitable for use as a rate controlling membrane. The higher percentage of vinyl acetate increases the lipophilicity of the membrane.
- 19% vinyl acetate
- Translucent
- Corona-treated on both sides
- Uniform 4 mil caliper, crossweb and downweb
- Heat-sealable
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 4 mils | 101.6 μm |
| % Vinyl Acetate | 19% | 19 % |
| Tensile |
| MD | 8.8 lbs./in. | 39.1 N/25.4 mm |
| CD | 6.6 lbs./in. | 29.4 N/25.4 mm |
| Elongation |
| MD | 400% | 400% |
| CD | 800% | 800% |
| MVTR |
| (g/m2/24 hr) | 48.6 | 48.6 |
Download Product Information Sheet (PDF, 171KB)
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3M™ CoTran™ 9728 Ethylene Vinyl Acetate (EVA) Film
A controlled caliper monolayer film suitable for use as a rate controlling membrane. The higher percentage of vinyl acetate increases the lipophilicity of the membrane.
- 19% vinyl acetate
- Translucent
- Corona-treated on both sides
- Uniform 2 mil caliper, crossweb and downweb
- Heat-sealable
- Can be laminated directly to adhesives
- Manufactured for use in pharmaceutical products
| Film Properties | Nominal Values (U.S.) | Nominal Values (Metric) |
|---|
| Caliper | 2 mils | 50.8 μm |
| % Vinyl Acetate | 19% | 19% |
| Tensile |
| MD | 4.4 lbs./in. | 21.6 N/25.4 mm |
| CD | 2.6 lbs./in. | 11.8 N/25.4 mm |
| Elongation |
| MD | 300% | 300% |
| CD | 600% | 600% |
| MVTR |
| (g/m2/24 hr) | 97.2 | 97.2 |
Download Product Information Sheet (PDF, 171KB)
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