MASSCOOL Shin-Etsu Thermal Interface Cooling Material G751 MASSCOOL G751 Shin-Etsu Thermal Interface Material , Gray Paste. Injection Tube Dimensions: 4.33" x 0.31" x 0.31" , Appearance: Gray Paste, Application: Injector with cap for easy application and storage. Electrically non-conductive. Weight 0.5 Gram, Viscosity at 25 Degrees'(P) 3500 , Specific Gravity, at 25 Degrees' 2.5, Bleed after 24hrs. at 150 Degrees'(%) &lt;0.1, Volatile Content: after 24hrs. at 150 Degrees'(%) &lt;0.3,Thermal Conductivity (W/m K)&gt;4.5.