3M™ Optically Clear Adhesive 821X
3M™ Optically Clear Adhesive 821X is for use in general purpose applications including display touch applications where very high adhesion is critical.
Features and Benefits
High temperature, humidity, and UV resistance
Long term durability without yellowing, delaminating, or degrading
High cohesive and peel strength for reliably bonding most transparent substrates
Good adhesion to most display substrates (Glass, PET)
Stiffer adhesive (easy to convert)
Manufactured in a clean room environment
3M™ Optically Clear Adhesives (OCA) are highly specialized optically clear free-film adhesives offering superior clarity and excellent adhesion to various types of transparent substrates. 3M OCAs are easy to convert and are contaminant-free, resulting in improved bubble resistance in lamination exposed to high temperature and high humidity. Common application example is display bonding. Available in the following product numbers: 8211, 8212, 8213, 8214 and 8215.
Adhesive Thickness 1.0 mil, 2.0 mil, 3.0 mil, 4.0 mil, 5.0 mil
Adhesive Thickness (metric) 100.0 micron, 125.0 micron, 25.0 micron, 50.0 micron, 75.0 micron
Adhesive Type Acrylic
Application Optical Bonding
Application Category Bonding
Backside Liner Color Clear
Backside Liner Thickness 2.0 mil
Backside Liner Type Polyester
Dielectric Constant 4.04 @ 1KHz
Faceside Liner Color Clear
Faceside Liner Thickness 2.0 mil
Faceside Liner Thickness (metric) 50 micron
Faceside Liner Type Polyester
Haze Percentage < 1.0%
Light Transmission Percentage > 99%
Peel Adhesion to Glass (metric) 66N/100mm
Performance Features Easy to Convert, High Adhesion, Less Tacky, Stiff
Product Form Roll
Product Series 821x
Refractive Index 1.47
Substrate Glass, PET (polyester)
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