Dow Dowsil SE 9184 RTV Adhesive

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Description for Dow Dowsil SE 9184 RTV Adhesive

One-part, non-flowing thermally conductive adhesive, fast tack-free with controlled volatility and good flame resistance.

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Brand	Dowsil
Application Type	Adhesive
1 Part or 2 Part	1-Part
Material Form	Paste
Substrate	Aluminum, Ceramic, Glass, Many reactive metals, Selected plastics
Industry	Cooling of various electrical components, Smart Meters, E-Mobility Solutions, Smart Home Devices
Manufacturer	Dow
Chemistry	Polydimethylsiloxane, Silicone
Cure Method	RTV, Moisture, RT cure
Cure Temperature (°C)	20 to 25 Room temperature
Cure Time (min)	240 to 420, 10,080
Viscosity (cPs)	Non-flowing
Color	White
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55, Low thermal resistance
Volume Resistivity (O)	1.5e15 (ohm/cm)
Durability	Durable
Key Specifications	UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94: UL 94 V-0 Flammability rating

Best Practices for Dow Dowsil SE 9184 RTV Adhesive

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Technical Data for Dow Dowsil SE 9184 RTV Adhesive

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Overview

Application Type
- Adhesive
1 Part or 2 Part
- 1-Part
Material Form
- Paste
Substrate
- Ceramic
- Glass
- Metal - Many reactive metals
- Aluminum
- Plastic - Selected plastics
- Other - Selected laminates, Selected resins
Industry
- Smart Meters
- Smart Home Devices
- E-Mobility Solutions
- Electronics - Cooling of various electrical components
Chemistry
- Other - Polydimethylsiloxane
- Silicone
Application Method
- Dispenser - Automated or manual needle dispense systems
Cure Method
- Room Temperature / Air Dry - RT cure
- Moisture / Condensation Cure - Moisture
- RTV (Room Temperature Vulcanization) - RTV
Color
- White
Key Specifications
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) : UL 94 : V0 - UL 94 V-0 Flammability rating
Brand
- Dowsil

Specifications

Cure Specs

Cure Temperature (°C)	20 to 25 Room temperature	Test Method
Cure Time (min)	240 to 420, 10,080	Test Method
Viscosity (cPs)	Non-flowing
Tack Free Time (min)	Fast, 3.00	Test Method

Bond Strength

Shear Strength (psi)	245	Test Method
Tensile Strength (psi)	460

Material Resistance

Non-Corrosive	Noncorrosive
Flame Resistance	Good
Environmental Resistance	Environmental resistance
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55, Low thermal resistance

Conductivity

Dissipation Factor	0.00200	Test Method
Filler	Thermally conductive fillers
Dielectric Strength (V/mil)	500
Dielectric Constant	4.00	Test Method
Thermal Conductivity (W/m°K)	0.84, High
Volume Resistivity (O)	1.5e15 (ohm/cm)

Hardness

Durability	Durable
Shore A Hardness	74
Elongation (%)	60

Other Properties

Specific Gravity	2.200	Test Method

Business Information

Shelf Life Details	Shelf life is indicated by the “Use Before” date found on the product label. For best results, Dow Corning RTV adhesives should be stored at or below 25°C (77°F). Special precautions must be taken to prevent moisture from contacting these materials. Containers should be kept tightly closed with head or air space minimized. Partially filled containers should be purged with dry air or other gases, such as nitrogen.
Shelf Life Temperature (°F)	<77
Shelf Life Type	from date of manufacture
Shelf Life (mon)	7

Not Good For

Don't Use With	Plastic, rubber, Non-reactive metal substrates, Nonreactive plastic surfaces, Teflon®, Polyethylene, Polypropylene, Plastic or rubber substrates that are highly plasticized

Best Practices for Dow Dowsil SE 9184 RTV Adhesive

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1. Surface Preparation
  
  All surfaces should be thoroughly cleaned and/or degreased with Dow Corning® brand OS Fluids, naphtha, mineral spirits, methyl ethyl ketone (MEK) or other suitable solvent. Solvents such as acetone or isopropyl alcohol (IPA) do not tend to remove oils well, and any oils remaining on the surface may interfere with adhesion. Light surface abrasion is recommended whenever possible, because it promotes good cleaning and increases the surface area for bonding. A final surface wipe with acetone or IPA is also useful. Some cleaning techniques may provide better results than others
  
  users should determine the best techniques for their particular applications.
2. Mixing
  
  No mixing required
3. Deairing/Degassing
  
  Automated airless dispense equipment can be used to reduce or avoid the need to de-air. If de-airing is required to reduce voids in the cured elastomer, consider a vacuum de-air schedule of >28 inches Hg for 10 minutes or until bubbling subsides.
4. Curing
  
  The one-part moisture-cure adhesives are generally cured at room temperature and in a range of 0 to 80 percent relative humidity. Greater than 90 percent of their full physical properties should be attained within 4 to 7 hours depending on the product chosen. These materials are not typically used for highly confined or deep section cures. Materials will generally cure about 0.25 inch (6.35 mm) per 7 days.
5. Testing
  
  Substrate Testing: To ensure maximum bond strength for adhesives on a particular substrate, 100 percent cohesive failure of the adhesive in a lap shear or similar adhesive strength test is needed. This ensures compatibility of the adhesive with the substrate being considered. Also, this test can be used to determine minimum cure time or to detect the presence of surface contaminants such as mold release agents, oils, greases and oxide films.
Comparable Materials for Dow Dowsil SE 9184 RTV Adhesive

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Spec Engine^® Results
- Dowsil SE 4422 Thermally Conductive Adhesive(Dow)
  • One-part • Gray • Moisture cure • Thermally conductive filler • Semi-flowable • Fast tack-free time • Good adhesion.
- Dowsil EA-9189 SC RTV Adhesive(Dow)
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