Specialty Materials for Electronic Assembly
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Item # SE 9157, Silicone Dow Electronics Conformal Coatings


Silicone Dow® Electronics Conformal Coatings

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1-part, translucent, fast tack-free medium-viscosity conformal coating




Specifications  · Features  · Potential Uses  · Application Methods  · Cure

Specifications

Type
Solventless RTV Elastomeric Conformal Coatings

Product Form
1-part RTV cure

Color
Translucent

Viscosity
5675 mPa/s

Durometer
25 A

Specific Gravity
1.00

Room Temperature Tack-Free Time
6 min

Room Temperature Cure Time
30 min

UL 746E Approval
No

Shelf Life from Date of Manufacture
15 months

Dielectric Strength
675 V/mil
27 kV/mm

Dielectric Constant at 1 MHz
2.7

Dissipation Factor at 1 MHz
6.00E-04

Volume Resistivity
4.00E+15 O/cm


Features

Fast tack-free room-temperature cure; medium viscosity; cures to soft, low-stress elastomer; no added solvents


Potential Uses

Protective coating for rigid and flexible circuit boards, connectors, electronic components, or sensors; fast tack-free cure.


Application Methods

Applied by spray, brush, flow or some automated pattern coating. May be dip coated with special precautions.


Cure

Time to cure is dependent on several variables including the method of application, film thickness, temperature and humidity. Tack- free time in the data table gives an indication of typical times until surface is dry enough to handle. Cure time for full cure are indications of time needed to develop full physical properties such as durometer, tensile strength or adhesion. These times, including full cure time, can be significantly improved by introducing mild heat of 60 °C or less.