Momentive Performance Materials GE Silicones IGS3760 High-modulus, neutral curing sealant

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Momentive Performance Materials GE Silicones IGS3760 High-modulus, neutral curing sealant
Categories:	Polymer; Thermoset; Silicone
Material Notes:	IGS3760 adhesive silicone is an optimized, high-modulus, neutral curing sealant for edge seal applications for gas and air filled structural and non-structural insulating glass units. IGS3760 two-component silicone offers variable work life to accommodate scheduling and production needs. Features: High Modulus, High Elastic Recovery, Fast Cure, Compatibility, Non-flammable. Applications: Structural Glazing, Silicone Durability, Adhesive. Note: IGS3760 silicone should only be used in the fabrication of insulating glass where the dual seal method of fabrication is used. The moisture vapor transmission rate of silicone sealants is sufficiently high as to preclude their use in the fabrication of single seal insulating glass units. Information provided by Momentive Performance Materials.
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Physical Properties	Original Value	Comments

Specific Gravity	1.11 g/cc	IGS3760B. Uncured.
	1.47 g/cc
	1.50 g/cc	IGS3760A. Uncured.

Mechanical Properties	Original Value	Comments
Hardness, Shore A	55	ASTM D2240
Tensile Strength	1.00 MPa	ISO 8339
	1.12 MPa	ASTM C1135
Tensile Strength, Ultimate	2.10 MPa	ASTM D412
Tensile Stress at Strain	0.440 MPa @Strain 10 %	ASTM C1135
	0.700 MPa @Strain 25 %	ISO 8339
	0.860 MPa @Strain 25 %	ASTM C1135
Elongation at Break	46 %	ASTM C1135
	60 %	ISO 8339
Elongation, Ultimate	222 %	ASTM D412
Modulus of Elasticity	2.60 GPa	ETAG 002
Shear Strength	0.900 MPa	ASTM C961
Tear Strength	6.61 kg(f)/cm	Die B.; ASTM D624

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	300 °F	Heat Resistance

Processing Properties	Original Value	Comments
Tack-Free Time	40.0 - 175 min
Shelf Life	12.0 Month	IGS3760B
	18.0 Month	IGS3760A

Descriptive Properties
Accelerated Weathering	Excellent, no degradation.	5000hrs.
Appearance	Thixotropic Paste	IGS3760A. Uncured.
	Thixotropic Paste	IGS3760B. Uncured.
Color	Black	Black: IGS3760A mixed with IGS3760B Black
	Black	IGS3760B. Uncured.
	Black/Gray	Cured
	Black/Gray	Mixed
	Gray/white	IGS3760A. Uncured.
Consistency / Sag	<0.05”	Non-sagging
Design Stress in Tension	0.15 Mpa	ETAG 002
Gas Permeability	0.924 g/m2h	EN1279-4
Mix Ratio	12.5:1	As Tested
	8:1 to 11:1	Mixed by volume
Resistance to Tearing	category 1	ETAG 002.
Snap Time	20-85 minutes
Water Penetration	23.4 g/m2	EN1279-4

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