RTV Silicones >> White, paste, 2 Part Potting and Encapsulating Compound >> Extreme low temperature



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RTV Silicones by

2-Part Potting/Encapsulating Compound RTV577

Technical Support
for RTV Silicones

1-800-295-2392

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MSDS

Catalyst options/MSDS

Primer options/MSDS

Specifications

Available Sizes

Related products:
	RTV21
	RTV31
	RTV60
	RTV88
	RTV560
	RTV566
	RTV577
	RTV630
	RTV656



	Selection Guide One Part Chart Two Part Chart


	General Purpose Aerospace Marine High Performance Assembly Electronics Thermal Conductivity High Temperature Low Temperature

Primary Characteristics

White Paste

Condensation cure

Extreme low temperature

Useful to -115°C
(-175°F)

Mix ratio 200:1

Primer required

Use in aerospace applications such as sealing and insulating and for vertical and overhead surfaces. Silicone primer is required. The product comes complete with catalyst DBT. Specialized catalysts are avialable upon request.

Available Sizes

Catalog Number	Sizes Available	Description	Case Qty
RTV577-1G	1 gallon	12 lbs. kit	1
RTV577 requires a primer. Visit our primer guide for details.

Specifications

Use	Potting & Encapsulating
Special Feature	Low Temperature
Cross Reference	RTV577
Uncured Properties
Consistency	Paste
Color	White
Specific Gravity	1.35
Pot Life	2 hours
Cure Through Time	24 hours
Useful Temp. Range	-115°C to 204°C (-175°F to 400°F)
Cured Properties - MECHANICAL
Hardness	48 (Shore A)
Cured Properties - ELECTRICAL
Volume Resistivity	5.6 x 10¹⁴ ohm · cm
Dielectric Strength	18.5 kV/mm (470 V/mil)
Dielectric Constant	3.98 @ 1000 Hz
Cured Properties - THERMAL
Thermal Conductivity	0.31 W/m · °K
Thermal Expansion	20 x 10^-5 cm/cm °C
	(11 x 10^-5 in/in °F)
Other
Viscosity (@ 25°C)	700,000 cps
Mix Ratio (by weight)	100 : 0.5

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