Dow Dowsil HC 2100 Coating

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Description for Dow Dowsil HC 2100 Coating

A one-part, translucent, fast tack free low viscosity conformal coating with controlled volatility, Cures to soft, low stress elastomer, RT cure.

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Brand	Dowsil
Chemical Resistance	Good
Application Type	Conformal coating
1 Part or 2 Part	1-Part
Material Form	Pre-Cure: Liquid, Post-Cure: Elastomer
Substrate	Low-surface energy surfaces
Industry	Rigid circuit boards, Interconnections, Sensors, Connectors, Smart Meters, E-Mobility Solutions, Smart Home Devices, Electronic components, Flexible circuit boards, Relays
Manufacturer	Dow
Chemistry	Silicone elastomer, Solventless, Non Volatile Content : 96.7%, Polydimethylsiloxane coating
Application Method	Flow: Flow coating
Cure Method	RTV, Atmospheric moisture, RT cure
Cure Temperature (°C)	25 Room Temperature
Cure Time (min)	30, 4,320
Viscosity (cPs)	High, 400, Low
Color	Translucent
Ozone Resistance	Ozone resistance
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55
Other Resistance	Mechanical protection
Volume Resistivity (O)	5.0 E15 (ohm*cm)
Stress Relief	Low stress
Key Specifications	UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): Underwriters Laboratory (UL) 746E

Best Practices for Dow Dowsil HC 2100 Coating

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Technical Data for Dow Dowsil HC 2100 Coating

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Overview

Chemical Resistance
- Chemical Resistance - Good
Application Type
- Conformal Coating
1 Part or 2 Part
- 1-Part
Material Form
- Elastomer - Post-Cure: Elastomer
- Liquid - Pre-Cure: Liquid
Substrate
- Low Surface Energy - Low-surface energy surfaces
- Other - Other substrates, Printed circuits, Most common materials, Most common substrates
Industry
- Smart Meters
- Smart Home Devices
- E-Mobility Solutions
- Electronics - Electronic components, Flexible circuit boards, Relays, Rigid circuit boards, Interconnections
- Sensors
- Connectors
- Industrial - CD, DVD, HDD, Delicate components
Chemistry
- VOC-free - Non Volatile Content : 96.7%
- Solvent-Free - Solventless
- Silicone - Silicone elastomer, Polydimethylsiloxane coating
Application Method
- Dispenser - Robotic dispensing, Select coating, Syringe
- Brush
- Spray
- Flow : Flow Coat - Flow coating
- Dip
- Screen Print - Automated pattern
Cure Method
- Room Temperature / Air Dry - RT cure
- Moisture / Condensation Cure - Atmospheric moisture
- RTV (Room Temperature Vulcanization) - RTV
Color
- Translucent
Key Specifications
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) : 746E - Underwriters Laboratory (UL) 746E
Brand
- Dowsil

Specifications

Cure Specs

Cure Temperature (°C)	25 Room Temperature	Test Method
Cure Time (min)	30, 4,320	Test Method
Viscosity (cPs)	High, 400, Low	Test Method
Tack Free Time (min)	Fast, 10	Test Method
Work / Pot Time (min)	>86,400	Test Method

Bond Strength

General Bond Strength (psi)	Good

Material Resistance

Ozone Resistance	Ozone resistance
UV Resistance	UV resistance
Environmental Resistance	Environmental protection
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55
Moisture/Humidity Resistance	Moisture/humidity resistance
Other Resistance	Mechanical protection

Conductivity

Dissipation Factor	0.00100	Test Method
Dielectric Strength (V/mil)	Durable, 625	Test Method
Dielectric Constant	2.40	Test Method
Volume Resistivity (O)	5.0 E15 (ohm*cm)	Test Method

Hardness

Stress Relief	Low stress
Shore A Hardness	10	Test Method
Flexibility	Soft

Other Properties

Specific Gravity	0.980	Test Method
% Solids (%)	100

Business Information

Shelf Life Details	Storage conditions and shelf life (“Use by” date) are indicated on the product label., Shelf life is indicated by the “Use Before” date found on the product label.
Shelf Life Type	From date of manufacture
Shelf Life (mon)	15

Best Practices for Dow Dowsil HC 2100 Coating

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1. Curing
  
  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.
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