Dow SE 1880 Clear & Blue (Controlled Volatility)

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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.

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Application Type	Seal
1 Part or 2 Part	1-Part
Material Form	Liquid
Industry	Circuits, Optoelectronics, Smart Meters, E-Mobility Solutions, Smart Home Devices, Electronics, Optoelectronics
Manufacturer	Dow
Chemistry	Polydimethylsiloxane, Silicone, Solvent-free
Cure Method	Addition Cure, Heat
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

Best Practices for Dow SE 1880 Clear & Blue (Controlled Volatility)

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Technical Data for Dow SE 1880 Clear & Blue (Controlled Volatility)

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Overview

Application Type
- Sealant - Seal
1 Part or 2 Part
- 1-Part
Material Form
- Liquid
Industry
- Optical - Optoelectronics
- Smart Meters
- Smart Home Devices
- E-Mobility Solutions
- Electronics - Circuits, Optoelectronics
- Industrial - Delicate components
Chemistry
- Solvent-Free
- Other - Polydimethylsiloxane
- Silicone
Cure Method
- Heat
- 2-Part Cure - Addition Cure
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

Best Practices for Dow SE 1880 Clear & Blue (Controlled Volatility)

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1. 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.
2. Deairing/Degassing
  
  Degassing at >28 inches (10-20 mm) Hg vacuum may be necessary to ensure a void-free, protective layer.
3. 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.
Comparable Materials for Dow SE 1880 Clear & Blue (Controlled Volatility)

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Spec Engine^® Results
- Sylgard 535 Thixotropic Dielectric Gel(Dow)
  A 1-part, translucent, thixotropic gel, heat cure, resistance to some solvents and fuels, controlled volatility gels for sensitive applications, and UV curing.
- Dowsil X3-1598 Adhesive(Dow)
  Noncorrosive; self-priming; rapid heat cure; high strength; flowable; contains UV indicator for automated inspection.
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