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The future is flexible: Corning® Willow® GlassAt roughly the same thickness as a sheet of copy paper, Corning® Willow® Glass is thin enough to be flexible whileretaining its superior glass attributes. Willow Glass provides the inherent benefits of glass in a mechanically bendableform-factor, enabling cost-efficient device processing.Willow Glass can be used in displays to make thinner and lighter portable devices such as smartphones and tablets,without sacrificing device performance or reliability. It is also an ideal material for laminate applications like kitchen backsplashes and other vertical surfaces.Corning’s patented edge tabs enable practical use of Willow Glass in roll-to-roll processing.

Corning® Willow® Glass — Fact Sheet

Sizes

Composition

Packaging

Sheets

Alkali-free Borosilicate

Rolls/Edge tab/Leader/Trailer/InterleafFlat Box / Interleaf

Contact UsFor additional information about handling and safety guidelines, product dimensions and availability, contact Willow@corning.com.

Wavelength (nm)

Tran

smis

sion

(%)

Optical Transmission100

80

60

40

20

0200 400 600 800

0.1 mm thickness0.2 mm thickness

500

400

300

200

100

00 5 10 15 20 25 30

Bend

Str

ess (

MPa

)

Bend Stress

Bend Radius (cm)

0.1 mm thickness0.2 mm thickness

Sample Characteristics

Density

Poisson Ratio

Strain Point

Annealing Point

Dielectric Constant (k=E°/E)

Surface Roughness

Nominal ValuesBulk Properties

CTE (0° to 300° C)

Young’s Modulus

2.3 – 2.5

3 – 5

70 – 80

650 – 700

700 – 750

< 0.5

< 20

0.20 – 0.25

5 – 6

g / cc

ppm / °C

GPa

°C

°C

Minimum Bend Radius* mm100 µm = 90mm

Ra (nm)

Rpv (nm)

Metric Unit

Rolls

Thickness 100 µm and 200 µm 100 µm and 200 µm

Up to 1100 mm x 1200 mm Up to 1.3 m wide and 300 m long

* Bend radius can be affected by handling.

200 µm = 180 mm

Fact Sheet