Dow Dowsil SE 9188 RTV Adhesive

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Description for Dow Dowsil SE 9188 RTV Adhesive

One-part, gray, non-flowing adhesive, fast tack free with controlled volatility and good flame resistance, Room temperature cure, no ovens required, UL 94 V-0 flammability rating,

*See Terms of Use Below

Brand	Dowsil
Application Type	Adhesive, Sealing
1 Part or 2 Part	1-Part
Material Form	Paste
Substrate	Glass
Industry	Part fixing on circuit boards, PCB system assemblies, Smart Meters, Advanced driver-assistance systems (ADAS), E-Mobility Solutions, Smart Home Devices, Circuit board of power supply modules
Manufacturer	Dow
Chemistry	Polydimethylsiloxane
Cure Method	RTV, Moisture Cure, Heat, Room Temperature Cure
Cure Temperature (°C)	20 to 25
Cure Time (min)	2,880
Viscosity (cPs)	Non-flowing
Color	Gray
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55
Volume Resistivity (O)	1E+15 (ohms/cm)
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 9188 RTV Adhesive

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Technical Data for Dow Dowsil SE 9188 RTV Adhesive

*See Terms of Use Below

Overview

Application Type
- Adhesive
- Sealant - Sealing
1 Part or 2 Part
- 1-Part
Material Form
- Paste
Substrate
- Glass
Industry
- Smart Meters
- Smart Home Devices
- Advanced driver-assistance systems (ADAS)
- E-Mobility Solutions
- Electronics - Part fixing on circuit boards, Circuit board of power supply modules
- Printed Circuit Board (PCB) - PCB system assemblies
- Power Supplies - Circuit board of power supply modules
Chemistry
- Silicone - Polydimethylsiloxane
Application Method
- Dispenser - Automated and manual needle dispense systems
Cure Method
- Room Temperature / Air Dry - Room Temperature Cure
- Moisture / Condensation Cure - Moisture Cure
- Heat
- RTV (Room Temperature Vulcanization) - RTV
Color
- Gray
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
Cure Time (min)	2,880
Viscosity (cPs)	Non-flowing
Tack Free Time (min)	Fast, 10	Test Method

Bond Strength

Shear Strength (psi)	270	Test Method
Tensile Strength (psi)	420

Material Resistance

Flame Resistance	Good
Environmental Resistance	Environmental resistance
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55
Moisture/Humidity Resistance	Moisture/humidity resistance
Vibration Resistance/Shock Resistance	Vibration dampening

Conductivity

Dissipation Factor	0.00300	Test Method
Dielectric Strength (V/mil)	Good, Durable, 750
Dielectric Constant	3.40	Test Method
Volume Resistivity (O)	1E+15 (ohms/cm)	Test Method

Hardness

Shore A Hardness	34	Test Method
Elongation (%)	400
Flexibility	Flexible

Other Properties

Specific Gravity	1.290	Test Method

Business Information

Shelf Life Details	For best results, Dow RTV adhesives should be stored at or below the storage temperature listed on the product label. Store in accordance with any special instructions listed on the product label. The product should be used by its Use Before date as indicated on the product label.
Shelf Life Temperature (°F)	90
Shelf Life Type	from date of manufacture
Shelf Life (mon)	15

Not Good For

Don't Use With	Plastic or Rubber Substrates that are Highly Plasticized, Polypropylene, Non-reactive metal substrates, Non-reactive plastic surfaces, Teflon®, Polyethylene

Best Practices for Dow Dowsil SE 9188 RTV Adhesive

*See Terms of Use Below
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. Testing
  
  Due to the wide variety of substrate types and differences in substrate surface conditions, general statements on adhesion and bond strength are impossible. To ensure maximum bond strength on a particular substrate, 100 percent cohesive failure of the adhesive in a lap shear or similar adhesive strength test is desired. This ensures compatibility of the adhesive with the substrate being considered. Also, this test can be used to determine minimum cure time or can detect the presence of surface contaminants such as mold release agents, oils, greases and oxide films.
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