Techsil® RTV27844

About
Techsil RTV27844 is a clear liquid which will cure at room temperature to a high strength silicone rubber with the addition of curing agents. RTV27844 is supplied with a curing agent in matched kits which are designed for use at a convenient 10:1 ratio by weight. RTV27844 is a low viscosity, easily pourable liquid. RTV27844 silicone rubber compound has the capability of remaining flexible at low temperatures and have been used for 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 this silicone rubber suggests evaluation for applications such as potting solar cells for maximum light transmission and electronic assemblies where component identification is necessary or desirable. Key Features and Benefits: 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)&&

About

Techsil RTV27844 is a clear liquid which will cure at room temperature to a high strength silicone rubber with the addition of curing agents. RTV27844 is supplied with a curing agent in matched kits which are designed for use at a convenient 10:1 ratio by weight. RTV27844 is a low viscosity, easily pourable liquid. RTV27844 silicone rubber compound has the capability of remaining flexible at low temperatures and have been used for 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 this silicone rubber suggests evaluation for applications such as potting solar cells for maximum light transmission and electronic assemblies where component identification is necessary or desirable. Key Features and Benefits: 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)&&

Product Description
Generic	硅橡胶,RTV-2
Material Status	Commercial: Active
Features	Good Rigidity,Good Clarity,Hydrolysis stability,Good liquidity,Low Viscosity,noise reduction,Low contractility,Food contact compliance,Low temperature toughness,Room temperature cure,Insulation
Availabilitys	Europe

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Shrinkage rate
MD	0.20	%

THERMAL	Nominal value	Unit
Linear coefficient of thermal expansion
MD	2.7E-4	1/℃
specific heat	1260	J/kg/℃
Thermal conductivity coefficient	0.19	W/m/K
Operating temperature	-60 to 240	℃

optical performance	Nominal value	Unit	Test method
Refractive index	1.406

Uncured Properties	Nominal value	Unit
Weight Mix Ratio (PBW)
Part A	10
Part B	1.0
Density	1.02	g/cm³
viscosity	4.0	Pa·s
Curing time
125℃	0.75	hr
100℃	1.0	hr
65℃	4.0	hr
150℃	15	hr
25℃	1.4E+2 to 1.7E+2	hr
storage stability
25 ℃	240	min

Cured Properties	Nominal value	Unit
Shore hardness
Shaw’s A	44
tensile strength	6.37	MPa
Tensile strain
fracture	120	%
Electrical strength
1.90 mm	20	kV/mm
Relative permittivity
1 kHz	2.70
Volume resistivity	1.8E+15	ohms·cm
Dissipation factor
1 kHz	6.0E-4

Notes
1. Typical properties: these are not to be construed as specifications.
【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.

Notes

1. Typical properties: these are not to be construed as specifications.

【 Disclaimer 】
Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials.