Songhan Plastic Technology Co.,Ltd.
 POLYMER SEARCH

Momentive Performance Materials RTV142 White, Low Volatile, One Component Silicone Sealant

Category Polymer , Adhesive , Thermoset , Silicone , Silicone, RTV, Adhesive/Sealant Grade
Manufacturer Momentive Performance Materials (Former GE Silicones)
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Momentive Performance Materials RTV142 White, Low Volatile, One Component Silicone Sealant.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
RTV 142 one-component, ready-to-use adhesive sealant cures to a tough, durable, resilient silicone rubber on exposure to atmospheric moisture at room temperature. Methyl alcohol vapors are released from the sealant surface as a by-product of cure. These vapors have low odor and are non-corrosive to metals. An important property of RTV142 is its low volatility.RTV 142 sealant has a thixotropic paste-like consistency. This allows it to be applied to vertical and overhead surfaces without sagging. Since it utilizes a moisture cure system, RTV142 sealant should not be used in thicknesses of greater than 6mm(1/4 in.). When section depths exceed 6mm(1/4in.), GE Silicones one-component, addition cure or two-component silicone rubber compounds are suggested.Mechanical properties for specimen cured 10 days at 25°C and 50% relative humidity.Key Performance Properties: One component productRoom temperature curePrimerless adhesion to many substratesLow odorNon-corrosive to metalsLow volatilityLow temperature flexibilityHigh temperature performanceExcellent weatherability and ozone and chemical resistanceExcellent electrical insulation propertiesNon-halogen flame retardantApplications: The non-corrosiveness to metals and low volatility of RTV142, as well as its paste consistency, make it well suited for critical electronic adhesive, gasketing, and sealing applications where a high level of volatile condensable materials cannot be tolerated.GE Silicones became a part of Momentive Performance Materials in 2006.
Physical Properties Metric English Comments
Specific Gravity 1.09 g/cc
1.09 g/cc
Linear Mold Shrinkage <= 0.010 cm/cm
<= 0.010 in/in
Collected Volatile Condensable Material 0.050 %
0.050 %
Ball aerospace VCM test 33074
Mechanical Properties Metric English Comments
Hardness, Shore A 34
34
Tensile Strength, Ultimate 3.78 MPa
548 psi
Elongation at Break 400 %
400 %
Adhesive Bond Strength 2.0594 MPa
298.69 psi
At 100% cohesive failure
Tear Strength 8.83 kN/m
50.4 pli
Peel Strength 10.5 kN/m
60.0 pli
At 100% cohesive failure using 1 in. x 8 in. stainless steel screen at 180° pull angle
Thermal Properties Metric English Comments
CTE, linear 270 µm/m-°C

@Temperature 20.0 °C
150 µin/in-°F

@Temperature 68.0 °F
Thermal Conductivity 0.210 W/m-K
1.46 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 204 °C
399 °F
Continuous
Minimum Service Temperature, Air -60.0 °C
-76.0 °F
Continuous
Electrical Properties Metric English Comments
Volume Resistivity 4.50e+15 ohm-cm
4.50e+15 ohm-cm
Dielectric Constant 2.8

@Frequency 60 Hz
2.8

@Frequency 60 Hz
Dielectric Strength 20.0 kV/mm
508 kV/in
Dissipation Factor 0.0010

@Frequency 60 Hz
0.0010

@Frequency 60 Hz
Processing Properties Metric English Comments
Cure Time 200 min
4 hour
Tack-free
Descriptive Properties Value Comments
% Total Weight Loss 0.0022
Ball aerospace VCM test 33074
Application rate 975 g/min
Color White
Consistency Paste
Copyright © lookpolymers.com All Rights Reserved