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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,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 -
Technical Data for Dow Dowsil SE 9188 RTV Adhesive
Overview
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1 Part or 2 Part
- 1-Part
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Material Form
- Paste
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Substrate
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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
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Chemistry
- Silicone - Polydimethylsiloxane
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Application Method
- Dispenser - Automated and manual needle dispense systems
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Cure Method
- Room Temperature / Air Dry - Room Temperature Cure
- Moisture / Condensation Cure - Moisture Cure
- Heat
- RTV (Room Temperature Vulcanization) - RTV
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Color
- Gray
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Key Specifications
- UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) : UL 94 : V0 - UL 94 V-0 flammability rating
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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
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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.
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Mixing
No mixing required
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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.
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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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Tack Free Time Test Methods
Tack Free Time | Tack Free Temperature |
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Fast | |
10 min | 25°C |
Shear Strength Test Methods
Shear Strength | Type | Substrate | Test Method |
---|---|---|---|
270 psi | Lap shear strength | Glass | Unprimed Adhesion |
Dielectric Constant Test Methods
Dielectric Constant | Test Method |
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3.40 | At 1 MHz |
Dissipation Factor Test Methods
Dissipation Factor | Test Method |
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0.00300 | At 1 MHz |
Volume Resistivity Test Methods
Volume Resistivity | Test Method |
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1E+15 (ohms/cm) | JIS K 6249 |
Shore A Hardness Test Methods
Shore A Hardness | Shore Hardness Test Method |
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34 | Durometer |
Specific Gravity Test Methods
Specific Gravity | Test Method |
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1.290 | Cured |