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Dow Corning 748 NON-CORROSIVE SEALANT

Category	Polymer , Adhesive , Thermoset , Silicone , Silicone, RTV, Adhesive/Sealant Grade
Manufacturer	Dow Corning
Trade Name
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Dow Corning 748 NON-CORROSIVE SEALANT.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

White, neutral cure RTV sealant especially for electrical applications.Information provided by Dow Corning

Physical Properties	Metric	English	Comments
Specific Gravity	1.33 g/cc @Temperature 25.0 °C	1.33 g/cc @Temperature 77.0 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	35	35
Tensile Strength, Ultimate	1.90 MPa	275 psi
Elongation at Break	350 %	350 %
Peel Strength	4.38 kN/m	25.0 pli

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	177 °C	351 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F

Electrical Properties	Metric	English	Comments
Volume Resistivity	7.70e+14 ohm-cm	7.70e+14 ohm-cm
Dielectric Constant	3.21 @Frequency 100000 Hz	3.21 @Frequency 100000 Hz
	3.3 @Frequency 100 Hz	3.3 @Frequency 100 Hz
Dissipation Factor	0.0028 @Frequency 100000 Hz	0.0028 @Frequency 100000 Hz
	0.0087 @Frequency 100 Hz	0.0087 @Frequency 100 Hz

Processing Properties	Metric	English	Comments
Cure Time	2160 min @Temperature 22.0 °C	36.0 hour @Temperature 71.6 °F
Shelf Life	24.0 Month	24.0 Month

Descriptive Properties	Value	Comments
Color	off-white
Flowable	no
Water Resistant	yes

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