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.

Optically clear adhesive

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

What does this mean for you?

Improve Visual Quality

Enhance Robustness

Reduce Thickness

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.

Marian Converting Capabilities

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.