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Description for Dow SE 1880 Clear & Blue (Controlled Volatility)
Extremely soft to medium hardness, thermal/mechanical shock and vibration damping, excellent dielectric properties, flexible cure schedule, reversion resistant, thick section cure, compatible with automated dispensing equipment, and physical and electrical stability over a wider temperature range than the other types of gels.Application Type Seal 1 Part or 2 Part 1-Part Material Form Liquid Industry Circuits, Optoelectronics, E-Mobility Solutions, Smart Meters, Smart Home Devices, Electronics, Optoelectronics Manufacturer Dow Chemistry Silicone, Solvent-free, Polydimethylsiloxane Cure Method Heat, Addition Cure Cure Temperature (°C) 150 Cure Time (min) 30 Viscosity (cPs) Low, 775 Color Clear High Temperature Resistance (°C) 200 Low Temperature Resistance (°C) -45, -55 Volume Resistivity (O) 6.41E+14 (ohms/cm) Light Refractive Index (RI) High -
Technical Data for Dow SE 1880 Clear & Blue (Controlled Volatility)
Overview
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Application Type
- Sealant - Seal
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Industry
- Optical - Optoelectronics
- Smart Meters
- Smart Home Devices
- E-Mobility Solutions
- Electronics - Circuits, Optoelectronics
- Industrial - Delicate components
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Chemistry
- Solvent-Free
- Other - Polydimethylsiloxane
- Silicone
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Cure Method
- Heat
- 2-Part Cure - Addition Cure
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Color
- Clear / Transparent - Clear
Specifications
Cure Specs
Cure Temperature (°C) 150 Cure Time (min) 30 Viscosity (cPs) Low, 775 Thixotropic Controlled Material Resistance
High Temperature Resistance (°C) 200 Low Temperature Resistance (°C) -45, -55 Moisture/Humidity Resistance Moisture/humidity resistance Conductivity
Dissipation Factor 0.00020 Test Method Dielectric Strength (V/mil) 508 Dielectric Constant 2.75 Test Method Volume Resistivity (O) 6.41E+14 (ohms/cm) Hardness
Shore A Hardness 65 g Flexibility Resilient, Flexible Other Properties
Light Refractive Index (RI) High Specific Gravity 0.970 Test Method Business Information
Shelf Life Details Shelf life is indicated by the “Use Before” date found on the product label Shelf Life Temperature (°F) 41 Shelf Life (mon) 12 -
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Best Practices for Dow SE 1880 Clear & Blue (Controlled Volatility)
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Mixing
Some gels are supplied in bladder packs that avoid direct air contact with the liquid gel components, allowing use of air pressure over the pack in a pressure pot for dispensing. Do not apply air pressure directly to the liquid gel surface (without the bladder pack) as the gel can become supersaturated with air and bubbling can occur when the material is dispensed and cured. Use of bladder packs prevents bubbling, maintains cleanliness and avoids gel contamination. Gels can be dispensed manually or by using one of the available types of meter mix equipment. If possible, the potential for entrapment and incorporation of gas (typically air) should be considered during design of the part and selection of a process to dispense the gel. This is especially important with higher-viscosity and faster curing gels.
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Deairing/Degassing
Degassing at >28 inches (10-20 mm) Hg vacuum may be necessary to ensure a void-free, protective layer.
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Testing
If a substrate or material is questionable with respect to potentially causing inhibition of cure, it is recommended that a small scale compatibility test be run to ascertain suitability in a given application. The presence of liquid or uncured product at the interface between the questionable substrate and the cured gel indicates incompatibility and inhibition of cure.
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Comparable Materials for Dow SE 1880 Clear & Blue (Controlled Volatility)
Spec Engine® Results
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