Specialty Materials for Electronic Assembly
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All Categories > Conformal Coatings > Silicone Dow Electronics Conformal Coatings > Item # CC-4555 Long Bath Life Conformal Coating  
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Item # CC-4555 Long Bath Life Conformal Coating, Silicone Dow Electronics Conformal Coatings


Silicone Dow® Electronics Conformal Coatings

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1 part, transparent, low-viscosity conformal coating




Specifications  · Features  · Potential Uses  · Application Methods  · Cure

Specifications

Type
Solventless Heat Cure Conformal Coatings

Product Form
1-part heat cure

Color
Translucent

Viscosity
225 mPa/s

Durometer
22 A

Specific Gravity
0.9817

Heat Cure Time
20 min at 120 ºC

UL 746E Approval
No

Shelf Life from Date of Manufacture
6 months at 25 ºC

Dielectric Strength
500 V/mil
20 kV/mm

Dielectric Constant at 100 Hz
2.70

Dielectric Constant at 100 kHz
2.69

Dielectric Constant at 1 MHz
2.69

Dissipation Factor at 100 Hz
0.0001

Dissipation Factor at 100 kHz
< 0.0002

Dissipation Factor at 1 MHz
0.0002

Volume Resistivity
4.14E+13 O/cm


Features

Low viscosity, fast low-temperature heat cure with very long bath life; cures to low-stress elastomer


Potential Uses

Protective coating for rigid and flexible circuit boards. These heat cure, one-part, self-priming coatings cure to flexible, transparent elastomers ideally suited for electronic printed wiring board (PWB) applications, particularly those employing sensitive components and fine pitch designs.


Application Methods

Applied by dip, spray, brush, flow or automated pattern coating. The stable bath life of these materials makes them ideal for dip coating applications.


Cure

Time to cure is dependent on film thickness, type of oven, and board population density. Heat cure time in the data table gives an indication of typical times after the coating is heated to the temperature indicated. Highly populated, large, heavy boards may take longer than the indicated times due to the large thermal mass taking extra time to warm.