OCA Film
M3D49 Optically Clear Adhesive Film
Substrate-free OCA roll film for optical film lamination - available from 1 meter
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- Substrate-free OCA
- 490 mm width
- 0.025 mm thickness
- Available from 1 meter
M3D49 is a high-transparency optically clear adhesive (OCA) film designed for bonding optical films and transparent optical parts.
It is composed only of an adhesive layer with no PET carrier substrate. Its refractive index is close to glass and PMMA, helping reduce brightness loss and reflection at the bonding interface.
Related products: OCA / Cold Filter category | MCS62 OCA film | Optical film lineup
What M3D49 is used for
M3D49 is used when a clear adhesive layer is needed between optical films, display components or transparent substrates such as glass and PMMA.
Because its refractive index is close to glass and PMMA, it is useful for suppressing brightness loss and reflection at the interface while maintaining a thin, substrate-free laminated structure.
Typical Applications
- Lamination of polarizer film and waveplate / retarder film
- Bonding of optical components for smartphones, tablets and touch panels
- Transparent optical assemblies using glass or PMMA substrates
- Display-related bonding, prototyping and optical component integration
M3D49 – Substrate-Free Optically Clear Adhesive Film
- High optical transparency for clear lamination
- Substrate-free adhesive layer with no base film
- Designed for bonding optical components and functional films
- Suitable for touch panel components, polarizer film and display-related parts
- Refractive index close to glass and PMMA to reduce interface reflection
- Suitable for transparent bonding where high clarity is required
| Item Code | Size | Order Length | Unit Price |
|---|---|---|---|
| M3D49 | Width 490 mm t = 0.025 mm Roll type | 1 - 9 m | $ 35 / m |
| 10 - 29 m | $ 32 / m | ||
| 30 m or more | $ 30 / m |
Recommended use cases
M3D49 is suitable for optical film lamination where adhesive clarity and thin construction are important. It can be used for bonding optical functional films for display-related products and transparent optical assemblies.
- Optical functional film lamination for flat-panel displays
- Bonding of polarizer film, retarder film and similar optical films
- Glass or optical plastic film bonding
- Prototype evaluation of transparent adhesive structures
Sample Evaluation Recommended
Adhesive performance may vary depending on the substrate, optical film, surface treatment, cleaning condition and lamination process. Please evaluate M3D49 with your actual materials before production use.
Need M3D49 for optical film lamination?
Please confirm the required length, substrate, film type and application — send us an inquiry.
Specification of M3D49 OCA Film
Size
| Item | Unit | Value |
|---|---|---|
| Width | mm | 490 |
| Length (Max.) | m | 30 |
| Thickness | mm | 0.025 |
Optical Performance
| Item | Unit | Value |
|---|---|---|
| Total light transmittance | % | >99 |
| Haze | % | 0.6 |
Adhesive / Optical Properties
| Item | Unit | Value |
|---|---|---|
| Refractive index | - | 1.48 |
| Adhesive force | N/cm | 4.1 |
Measurement Notes
| Item | Details |
|---|---|
| Tape / liner thickness | JIS Z 1528, dial gauge with a 5 mm diameter contact surface |
| Adhesive strength | JIS Z 1528, measurement on substrate glass |
| Total light transmittance | JIS 7361, measurement with 2 mm thick PMMA + OCA, comparison with PMMA alone |
| Haze / Refractive index | Haze: JIS 7361 / Refractive index: JIS 7105 |
Safety Notice /Compatibility Notice
The values above are measured values and are not guaranteed values. They do not guarantee compatibility with every material, film, substrate, device or usage example described on this page. Please perform compatibility testing with the actual target material and bonding conditions before using M3D49 in any system, equipment or production process.
FAQ – M3D49 Optically Clear Adhesive Film
What is M3D49?
M3D49 is a substrate-free optically clear adhesive film used for bonding optical films, transparent substrates, smartphones, tablets and touch panel optical components.
Does M3D49 have a base film?
No. M3D49 is composed only of an adhesive layer and does not have a PET carrier substrate.
Can M3D49 be used with polarizer film or waveplate film?
Yes. It is suitable for optical film lamination, including polarizer and retarder films, and for bonding optical components where high clarity is required. However, final performance should be checked with the actual film, substrate and lamination process.
What is the minimum order quantity?
M3D49 is available from 1 meter. Bulk pricing is available for longer lengths.
See also: OCA / Cold Filter category | MCS62 OCA film | Optical film lineup