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Optical Epoxies
Adhesive Sealant — Epoxy 50

Epoxy bonding adhesives used in electrooptical applications, and engineered for bonding cover glasses to solar cells in space vehicles. Also recommended for electrooptical applications.

Epoxy 50
ADHESIVE SEALANT

EPOXY 50 is formulated as a two-component, low temperature system, designed for use as an adhesive sealant. The curing system is composed of 100% resin-solids and contains no solvents.

PROPERTIES

Color Water clear
Adhesion-lap shear strength > 3,000 psi
Hardness (Shore D) 80
HDT-Distortion Temperature 100 °C
Volume Resistivity 1.2 x 1016
Dielectric Constant 3.3 @ 1 mc
Pot Life > 3 Hours
Storage Life > 6 Months


INSTRUCTIONS:

Mixing Ratio (by weight): 10 parts A/3.6 parts B
Cure: Select cure cycle to fit processing

Temperature °C

Gel Time

Cure Time

25 (rm. temp)

5 hours

15 hours

50

1 hour

4 hours

75

10 minutes

30 minutes

100

5 minutes

10 minutes

Epoxy 50 FL is available for applications requiring a more flexible adhesive while retaining optical clarity and bond strength.