Optically Clear Adhesives (OCA)
What are Optically Clear Adhesives?
Optically clear adhesives (OCA) are highly specialized adhesive materials that are optically clear, offering superior clarity and excellent adhesion to various types of transparent substrates like film and glass. OCA bonding allows for thinner bond lines. Rigid-to-rigid or rigid-to-flexible bonding with OCA prevents bubbles and air gaps from forming, maximizing optical clarity.
OCAs are used for optically clear bonding in electronic displays, avionics/military displays, touch panels, LCD, and OLED displays.
Material Features of Optically Clear Adhesives
- Extremely high light transmission (>99%)
- High adhesion levels – peel strength and shear strength
- Contaminant free
- Bubble resistant even in high temperatures and high humidity
- Thin bond lines
- Long-term durability without yellowing, delaminating, or degradation
Converting Optically Clear Adhesives
Converting OCAs requires highly specialized processes. The material must remain in pristine condition throughout transport, unpackaging, handling, processing, and repackaging. Marian converts OCAs in tightly controlled and certified clean room environments to provide visually flawless bonds. We have the quality systems, processes, trained staff, and facilities to properly handle, convert, and package OCA materials.
- Clean room/clean environment
- Packaging for clean transport: double-bagged on a plastic core
Marian Converting Capabilities
- Multi-layer lamination, custom thickness range
- Tight tolerance slitting
- Die cutting/kiss cutting to a liner
- Unique process to create top and bottom tabs
- Packaging for automated placement
Commonly Converted Optically Clear Adhesive Materials
3M Optically Clear Adhesive Films 8211, 8212, 8213, 8214, 8215
Construction: acrylic adhesive (1.0 mil – 5.0 mil available), no carrier, release liners are 2.0 mil polyester
3M Optically Clear Adhesive 8171 and 8172
Construction: acrylic adhesive (1.0 mil & 2.0 mil available), no carrier, release liners are 2.0 mil polyester
tesa® 69808 UV-Curable Optically Clear Display Tape
UV-curable optically clear display tape. 7 mil pure acrylic adhesive, on 2 PET liners.
Contact us to speak to one of our experts and to learn more about OCAs.