MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 155,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
Chemically Resistant adhesives
Lord Adhesives Gelease™ MG-121 Thermally Conductive Silicone Gel Interface
Categories: Fluid; Lubricant; Silicone Base; Silicone, Filled Grease

Material Notes: GeleaseTM MG-121 exhibits the lowest thermal resistance of all thermal interface materials currently available from Lord. It is a one-component thermally conductive gel. This GeleaseTM formulation achieves thicknesses of 1-2 mils in order to minimize the thermal pathway and maximize heat flow. Gelease™ MG-121 provides extremely efficient heat transfer from Flip Chip devices (including microprocessors), PPGAs, BGAs, microBGAs, DSP chips, graphic accelerator chips, and other high wattage electronic components. The crosslinked structure of GeleaseTM MG-121 inhibits bleed, separation, and pump-out that are typically observed in many thermal interface materials.

All information provided by Lord.

Available Properties
  • Specific Gravity, ASTM D1505
  • Viscosity, 20rpm
  • Viscosity, 10rpm
  • Volume Resistivity, ASTM D257
  • CTE, linear, Alpha 2
  • Thermal Conductivity, ASTM F433
  • Maximum Service Temperature, Air
  • Glass Transition Temp, Tg, ASTM D3386
  • Cure Time
  • Cure Time
  • Cure Time
  • Pot Life
  • Shelf Life
  • Shelf Life
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
), please click the button below.

Manufacturer Notes:

Category Notes

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.


Chemically Resistant adhesives
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2022 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.