RTV31 Datasheet | MOMENTIVE

Description RTV31, RTV60 and RTV88 silicone rubber pounds are high temperature two-part silicone elastomers. They are supplied ready-to-use with a base pound and DBT (dibutyl tin dilaurate) as the standard curing agent. DBT is suitable for most applications, however other catalysts are available to facilitate deep section cure, faster cure and automated mixing. RTV31, RTV60 and RTV88 silicone rubber pounds differ primarily in viscosity in the uncured state. Key Performance Properties - Variable work times and cure rates by adjusting the amount and type of curing agent - Room temperature cure - position free of solvents and solvent odour - Excellent adhesion capabilities with primer - Excellent release properties - Retention of elastomeric properties at temperatures from -54°C up to 260°C continuously, and up to 316°C for short periods of time - Applications Typical high temperature applications for these products include, but are not limited to: - Potting and encapsulating electric motors and transformers - Fabrication of rubber parts - Casting moulds for low-melting point metals - Release applications such as rubber rollers - Thermal insulation Typical Product Data UNCURED PROPERTIES OF RTV BASE POUNDS Colour Consistency Viscosity, m Pa-s RTV31 Red Pourable 25,000 RTV60 Red Pourable 47,000 RTV88 Red Spreadable Paste 880,000 Specific Gravity, g/cm³ UNCURED PROPERTIES OF RTV BASE WITH 0.5% DBT CURING AGENT ADDED Work Time @ 25C, hrs 1.42 1.48 RTV31 RTV60 1.47 RTV88 Cure Time @ 25C, hrs 24 24 Page 1 of 5 RTV31, RTV60, RTV88 CURED PROPERTIES (0.5 wt. % DBT Curing Agent added, cured 7 days at 25C and 50% R.H.) Mechanical Hardness, Shore A Durometer Tensile Strength, MPa Elongation, % Tear Strength, k N/m Shrinkage, % Electrical Dielectric Strength, k V/mm (1.9 mm thick) Dielectric Constant @ 1000 Hz Dissipation Factor @ 1000 Hz 54 6.0 170 5.0...