Check the listing for details. {2} KEIL THERMAL MASTIC 10 OZ TUBE HEAT TRANSFER COMPOUND-Q77-1000-FREE SHIP-B4. Condition: New – Open box. Listed at 24.95 USD. You are bidding on TWO Keil Thermal Mastic 10.3 Fl. Oz Cartridge Temperature Transfer Compound Q77-1000 BOD 01/2024.These item come from store closing and overstocks and are new-in-case..FREE SHIPPING MAINLAND USA ONLY!!10.3 oz Tube Thermal Mastic Heat Transfer CompoundMay be used wherever rapid heat transfer is required - between refrigeration coils and refrigerator liners, between liquid and suction lines on a heat exchangerReplaces solder for heat transmissionStable at all working temperaturesDoes not harden or loose adhesion at -50°F (-45C°)Will not flow at 220°F (104°C)Viscosity: 3.6M - 4.0M centipoiseFlashpoint: 450°F (232°C)Furnished in 10.3 oz tube with removable tipMay be applied using standard caulking gun I buy estates and list the items the way I view them and may miss something that is important to you,so please ask BEFORE BIDDING!!!!