RTV Silicones >> Aerospace and Electronics application high temperature >> Clear, 2 Part Flowable Potting and Encapsulating Compound



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RTV Silicones by

2-Part Potting/Encapsulating Compound RTV31

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

Red pourable
Condensation cure
Extreme high temp
Useful to 260°C
(500°F)
Primer required

Use for:
Potting surge protectors on telephone poles
Potting industrial filters
High temp. electrical potting applications
Mechanical protection

silicone rubber compound for electrical potting and mechanical applications for high temperature resistance and low viscosity with variable work times and cure rates. Elastomeric properties range from -54°C to 260°C continuously, to 316°C for short periods. Requires primer for adhesion. The product comes complete with catalyst DBT. Specialized catalysts are avialable upon request.

Available Sizes

Catalog Number	Sizes Available	Description
RTV31-1P	1 pint	pail
RTV31-1G	1 gallon	pail
RTV31-5G	5 gallon	pail
RTV31 requires a primer. Visit our primer guide for details.

Specifications

Use	Potting & Encapsulating
Special Feature	High Temperature
NSN	8030-00-11-2762
Cross Reference	RTV31
Uncured Properties
Consistency	Flowable
Color	Red
Specific Gravity	1.42
Pot Life	2 hours
Cure Through Time	24 hours
Useful Temp. Range	-54°C to 260°C (-65°F to 500°F)
Cured Properties - MECHANICAL
Hardness	54 (Shore A)
Tensile Strength	5.98 MPa (870 psi)
Elongation	170%
Cured Properties - ELECTRICAL
Volume Resistivity	1.6 x 10¹⁴ ohm · cm
Dielectric Strength	17 kV/mm (430 V/mil)
Dielectric Constant	4.4 @ 1000Hz
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)	25,000 cps
Mix ratio (by weight)	100:0.5

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