Aerospace Sealants AS157 RTV Sealant is approved as a replacement by the FAA for Momentive RTV157 High Strength Fast Cure RTV Silicone Adhesive Sealant. It has been tested and meets MIL-A-46106 Type I Group III standards.
AS157 is a high strength acetoxy silicone RTV rubber adhesive that is fast curing at room temperature. It is well suited for applications requiring fast development of physical properties and excellent adhesion. It is one part high temperature silicone that resists weathering, ozone, moisture, and UV when cured. This adhesive works in manual and automatic dispensing equipment. Typical utilization involves dispensing in open air and ambient humidity to result in a high strength adhesive rubber. Cure speed can be accelerated with hot air to nearly instant cures exhibiting very fast adhesion. A one minute hot air stream exposure, followed by a one minute cool-down in humid environment, results in a cured elastomer condition exhibiting outstanding adhesion.
Product Details
UOM : Cartridge
Pack Quantity : 1
Size : 10.3 oz
Color Family : Gray
Ship Dimensions : 2 x 2 x 11 inches
Shipping Weight : 1 pounds
Manufacturer P/N :AS157-10C
ECCN : EAR99
Schedule B Code : 3214.10.0010
Military Standard : MIL-A-46106 Type I Group III
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Features
Cures fast at room temperature
Thixotropic paste
Excellent unprimed adhesion to metal and glass
Heat accelerated instant cure capability
Specifications
Typical Properties
UNCURED
Color: Red
Viscosity, cps: 500,000
Specific Gravity: 1.12
Consistency: Thixotropic paste
Working Time, mins. @ R.T.: 4
Tack Free Time, mins. @ R.T.: 12
Application Rate, 90 PSI, g/min.: 250
Solids: 98%
CURED - ROOM TEMPERATURE
Cured - 72 hrs. @ R.T.
Tensile Strength, PSI: 750
Elongation, %: 850
Durometer, Shore A: 38
Peel Strength, PPI: 50
Tear Strength, PPI: 100
Lap Shear Strength, PLI: 330
ELECTRICAL
Dielectric Strength, V/mil: >500
Dielectric Constant: 2.8
Dissipation Factor: 0.001
Volume Resistivity, ohm·cm: 2.0 x 1014
THERMAL
Brittle Point, °F (°C): -68 (-55)
Maximum Continuous Operating Temperature, °F (°C): 482 (250)
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