Specialty Materials for Electronic Assembly
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Item # HC 1000, Silicone Dow Electronics Conformal Coatings


Silicone Dow® Electronics Conformal Coatings

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1-part, gray, fast tack-free conformal coating with controlled volatility; high viscosity and good flame resistance




Specifications  · Features  · Potential Uses  · Application Methods  · Cure

Specifications

Type
Solventless RTV Elastomeric Conformal Coatings

Product Form
1-part RTV cure

Color
Gray

Viscosity
12000 mPa/s

Durometer
24 A

Specific Gravity
1.07

Room Temperature Tack-Free Time
11 min

Room Temperature Cure Time
300 min

Flammability Classification
94 V-0

UL 746E Approval
No

Shelf Life from Date of Manufacture
12 months

Dielectric Strength
525 V/mil
21 kV/mm

Dielectric Constant at 1 MHz
3.2

Dissipation Factor at 1 MHz
3.00E-03

Volume Resistivity
2.00E+15 O/cm


Features

Fast tack-free room-temperature cure; high viscosity; cures to soft, low-stress elastomer; pigmented to hinder component identification; UL 94 V-0 flammability rating; controlled silicone volatility; no added solvents


Potential Uses

Protective coating for rigid and flexible circuit boards, connectors, electronic components, or sensors; fast tack-free cure, highly controlled volatility for use around relays, brush motors, and high-tolerance devices (HDD, DVD, CD).


Application Methods

Applied by syringe dispense, brush or flow coating.


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.