Momentive RTV615 Clear FDA Potting Silicone 500ml

Product code: RTV615

Manufacturer: Momentive

Package size: 500ml

Shelf Life:

RTV615 silicone rubber compound is a clear liquid that cure at room temperature to high strength silicone rubber with the addition of curing agents. These compounds are clear and colorless but differ in low temperature flexibility. RTV615, RTV655, and RTV656 silicone rubber compounds have been used for the protection of electronic components and assemblies against shock, vibration, moisture, ozone, dust, chemicals, and other environmental hazards by potting or encapsulation of the components and assemblies. The optical clarity of these silicone rubber compounds suggests evaluation for applications such as potting solar cells for maximum light transmission and electronic assemblies where component identification is necessary or desirable.


  • Convenient 10:1 mixing ratio for use in automatic dispensing or hand operations
  • Low viscosity allows easy flow in and around complex parts, providing excellent electrical insulation and shock resistance
  • Cure rate can be accelerated by heat
  • Will cure in deep sections or enclosed assemblies without exotherm and with low shrinkage
  • Chemical composition contains no solvents for ease of use on production lines
  • Reversion resistance and hydrolytic stability permit use in high humidity environments at elevated temperatures
  • Clarity permits visual inspection for easy identification and repair of encapsulated parts
  • Retention of elastomeric properties at temperatures up to 204°C (400°F)
Color Clear Colorless Clear Colorless
Consistency Easily Pourable Easily Pourable
Viscosity, cps 4300
Specific Gravity 1.02
Color Clear, Colorless
Consistency Easily Pourable
Viscosity, cps 4000
Work Time @ 25°C (77°F), hrs 4


Hardness, Shore A Durometer 44
Tensile Strength, kg/cm2 (psi) 65 (920)
Elongation, % 120
Shrinkage, % 0.2
Refractive Index 1.406
Dielectric Strength, kv/mm (v/mil) (1.9 mm thick) 19.7 (500)
Dielectric Constant @ 1000 Hz 2.7
Dissipation Factor @ 1000 Hz 0.0006
Volume Resistivity, ohm-cm 1.8 x 10^15  

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