TWO PART CONDENSATION (ALKOXY) CURE

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TWO PART CONDENSATION (ALKOXY) CURE 2017-08-20T17:06:26+00:00
Momentive (ge) Silicones – General Purpose
RTV12 RTV8111 RTV8112 RTV11 RTV21 RTV41
Data Sheets Technical
Data Sheet
Technical
Data Sheet
Technical ata Sheet Technical
Data Sheet
Technical
Data Sheet
Technical
Data Sheet
Features Low viscosity adhesive offering deep section  cure capability, easy repair capability, can  apply heat up to 85°C to attain a faster cure. Flowable sealant. MIL-PRF-23586F
(non-corrosive to copper).
Flowable sealant. MIL-PRF-23586F
(non-corrosive to copper).
Sealant with variable work time and cure time available through
catalyst options. Excellent release properties.
Sealant with variable work time and cure
time available through catalyst options.
Excellent release properties.
Sealant with variable work time and cure
time available through catalyst options.
Excellent release properties.
Typical Applications (include but not limited to) Electrical and electronic potting; High and low
voltage electrical assemblies.
Potting of electronic circuit modules,
electrical connectors and coils.
Potting of electronic circuit modules,
electrical connectors and coils.
Cast-in-place gaskets and molds;
Medical molds/ instruments; High
voltage power supply potting; Electrical potting.
Cast-in-place gaskets and molds; Medical molds/
instruments; High voltage power supply potting;
Electrical potting.
Cast-in-place gaskets and molds; Medical molds/
instruments; High voltage power supply potting;
Electrical potting.
Key Substrate Adhesion Primerless adhesion to many metals, plastics and glass. May require a primer for bonding. May require a primer for bonding. May require a primer for bonding. May require a primer for bonding. May require a primer for bonding.
Cure Chemistry Alkoxy Alkoxy Alkoxy Alkoxy Alkoxy Alkoxy
Mix Ratio (base to curing agent by weight) 20 : 1 100 : 2 100 : 5 100 : 0.5 100 : 0.5 100 : 0.5
Standard Catalyst RTV12C RTV9891 RTV9858 DBT DBT DBT
Catalyst Options Available+ None None None Yes Yes Yes
Color
(Final Product)
Clear White White White Pink White
Viscosity
(cps)
1,300 9,900 11,000 11,000 26,000 39,000
Useful Temperature Range -54 to 205°C
(-65 to 400°F)
-54 to 205°C
(-65 to 400°F)
-54 to 205°C
(-65 to 400°F)
-54 to 205°C
(-65 to 400°F)
-54 to 205°C
(-65 to 400°F)
-54 to 205°C
(-65 to 400°F)
Speci?c Gravity 1.00 1.18 1.19 1.19 1.32 1.31
Hardness, Shore A Durometer 18 45 42 41 45 47
Tensile Strength
(psi)
350 300 510 310 520
Elongation (%) 200 160 160 190 210 180
Tear Strength
(Die B, lb/in)
24 27 20 40 29
Thermal Conductivity (W/mK) 0.17 0.29 0.29 0.29 0.31 0.31
Coef?cient of Thermal
Expansion
(Linear CTE, cm/cm °C (in/in °F)
29 x 10-5
(16 x 10-5)
25 x 10-5
(14 x 10-5)
25 x 10-5
(14 x 10-5)
25 x 10-5
(14 x 10-5)
20 x 10-5
(11 x 10-5)
20 x 10-5
(11 x 10-5)
Dielectric Strength
(75 mils, V/mil)
400 500 475 515 420 520
Dielectric Constant
(1 kHz)
3.0 3.3 4.0 3.3 3.8 3.7
Dissipation Factor
(1 kHZ)
0.001 0.0055 0.007 0.006 0.02 0.007
Volume Resistivity
(ohm-cm)
1 x 1013 1.0 x 1015 2.7 x 1015 1.1 x 1015 2.6 x 1014 1.6 x 1014
Linear Shrinkage (%) 2.0 1.0 1.0 0.6 0.6 0.6
Processing: Work
(Pot) Life
1.6 hours 0.5 hours 2 hours 1.5 hours 1 hour 1 hour
Cure Time @ 25°C
(77°F)++
24 hours 24 hours 24 hours 24 hours 24 hours 24 hours