Product Selector | MasterBond.com

Product	Certifications	Applications	Viscosity	Cure Schedule	Hardness	Temp. Range	Link to Content
MasterSil 170 Gel Two component, addition curing silicone gel for sealing, potting and encapsulation Dielectric Strength 500 volts/mil Refractive Index 1.42	RoHS Compliant	Encapsulation Potting Bonding Sealing Coating Gap Filling	1,000 cps	24-48 hours at ambient temperatures, or in 1-2 hours at 150-170°F	65 mm penetration	-67°F to +392°F	/de/tds/mastersil-170-gel
MasterSil 323 Two component, addition cured silicone for bonding, sealing, and small encapsulations Elongation 150-250% Refractive Index 1.44	RoHS Compliant	Bonding Sealing Encapsulation Coating Gap Filling Potting	Part A: 15,000-30,000 cps, Part B: 10,000-25,000 cps	48-72 hours at 75°F or 2-4 hours at 135-165°F	35-45 Shore A	-65°F to +400°F	/de/tds/mastersil-323
MasterSil 323Med Two component, medical grade silicone for bonding and sealing Acoustical Impedance 1.1 MRayl Elongation 150-250%	RoHS Compliant ISO 10993-5 for Cytotoxicity	Bonding Sealing Encapsulation Potting Gap Filling	Part A: 15,000-30,000 cps, Part B: 10,000-25,000 cps	75°F: 48-72 hours; 135-165°F: 2-4 hours; Optimal cure: Overnight at 75°F followed by 2-4 hours at 135-165°F	35-45 Shore A	-65°F to +400°F	/de/tds/mastersil-323med
MasterSil 323Med Black Two component, medical grade silicone for bonding and sealing Dielectric Strength 450 volts/mil Elongation 150-250%	ISO 10993-5 for Cytotoxicity RoHS Compliant	Bonding Sealing Encapsulation Coating Gap Filling	Part A: 15,000-30,000 cps, Part B: 10,000-25,000 cps	cures at ambient temperatures in 48-72 hours or in 2-4 hours at 135-165°F; optimum cure is overnight at 75°F followed by 2-4 hours at 135-165°F	35-45 Shore A	-65°F to +400°F	/de/tds/mastersil-323med-black
MasterSil 323S-LO Two part, silver filled, low outgassing silicone for bonding, sealing and coating Elongation 50-100% Volume Resistivity <0.003 ohm-cm	NASA Low Outgassing RoHS Compliant	Bonding Sealing Coating Gap Filling	Part A: paste, Part B: paste	8-12 hours at 130-150°F, 4-6 hours at 160-180°F or 2-3 hours at 190-210°F	35-55 Shore A	-80°F to +400°F	/de/tds/mastersil-323s-lo
MasterSil 415 One component silicone elastomer adhesive for high performance bonding and sealing Dielectric Strength 500 volts/mil Elongation 350-450%	RoHS Compliant	Bonding Sealing Coating Gap Filling	paste	12-24 hours at 75°F	25-35 Shore A	-185°F to +400°F	/de/tds/mastersil-415
MasterSil 705 One component, silicone elastomer adhesive for high performance bonding and sealing Dielectric Constant 2.5 Elongation 300-400%	RoHS Compliant	Bonding Sealing Coating Gasketing	paste	Cures at 75°F	25-35 Shore A	-75°F to +450°F	/de/tds/mastersil-705
MasterSil 705S One component, non-corrosive silicone for bonding and sealing Elongation 50% Volume Resistivity <0.01 ohm-cm	RoHS Compliant	Bonding Sealing Coating Gasketing	paste	Tack-free time, 75°F for 15-20 minutes	70 Shore A	-60°F to +400°F	/de/tds/mastersil-705s
MasterSil 705TC One component, non-corrosive silicone for bonding, sealing & coating Dielectric Constant 4.2 Elongation 70%	RoHS Compliant	Bonding Sealing Coating Gasketing	paste	Tack-free time, 75°F 7 minutes	70-80 Shore A	-60°F to +400°F	/de/tds/mastersil-705tc
MasterSil 707FR-NV One component, room temperature curing, silicone elastomer Dielectric Constant 3.2 Dielectric Strength 600 volts/mil	RoHS Compliant UL 94V-0 Flame Resistant UL 94V-1	Bonding Sealing Coating Gap Filling	paste	Tack-free time, 75°F 5-10 minutes	35-45 Shore A	-49°F to +221°F	/de/tds/mastersil-707fr-nv

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