Supreme 121AO: Thermally Conductive, Electrically Insulative Potting Compound Resists High Temperatures/title> </head> <body> <p>The following is a news release from Master Bond Inc. You have received it because you are listed as an editor for your publication.<br> Attached to this email is a low resolution version of the photograph that is included in the press kit for this product.<br> High resolution version of this image and files with the body text of this release in Word, HTML and text formats are available at <a href="https://www.masterbond.com/newsrelease/supreme-121ao">https://www.masterbond.com/newsrelease/supreme-121ao</a>. <br> -----------------------------------------------------------------</p> <h2>FOR IMMEDIATE RELEASE</h2> <h1>Thermally Conductive, Electrically Insulative Potting Compound Resists High Temperatures</h1> <p>Master Bond Supreme 121AO is a NASA low outgassing approved epoxy suitable for bonding, sealing and potting applications. Featuring a high glass transition temperature of 200-210°C, it resists temperatures up to 550°F. This system exhibits an element of toughness, and is not as stiff as conventional epoxies that withstand extreme temperatures.</p> <p>Supreme 121AO has a noteworthy strength profile with a tensile modulus of 750,000 to 850,000 psi at room temperature and a compressive strength of 26,000 to 28,000 psi. Its thermal conductivity is 4-5 BTU•in/(ft<sup>2</sup>•hr•°F), and it is also electrically non-conductive. Shrinkage upon cure is exceptionally low. This system not only withstands thermal cycling and mechanical stresses, but also resists many chemicals, including water, oils, fuels, acids and bases. Supreme 121AO may be used in aerospace, electronic, opto-electronic and OEM applications. </p> <p>This two part epoxy has a mix ratio of 100 to 80 by weight. The viscosity of the mixed compound is 10,000-25,000 cps, making it readily pourable for potting and casting. It has a long working life after mixing of 2-3 days, for a 100 gram batch. The recommended cure schedule is 1-2 hours at 200°F followed by 3-4 hours at 250°F, and then 4-6 hours at 300°F. Additional post curing at 350°F for 2-4 hours will further enhance product properties.</p> <h2>Master Bond Thermally Conductive Epoxy Adhesives</h2> <p>Master Bond Supreme 121AO is a high temperature resistant epoxy with good thermal conductivity. It features excellent thermal stability and a free flowing viscosity making it ideal for potting and casting applications. Read more about Master Bond’s thermally conductive epoxy adhesives at <a href="https://www.masterbond.com/properties/thermally-conductive-epoxy-adhesives">https://www.masterbond.com/properties/thermally-conductive-epoxy-adhesives</a> or contact Tech Support. Phone: +1-201-343-8983 Fax: +1-201-343-2132 Email: <a href="mailto:technical@masterbond.com">technical@masterbond.com</a>.</p> <p>Note to Editors: </p> <p>For a full product description, please visit: <a href="https://www.masterbond.com/tds/supreme-121ao">https://www.masterbond.com/tds/supreme-121ao</a><br> Check out new videos on our YouTube channel: <a href="https://www.youtube.com/user/MasterBondVideo">https://www.youtube.com/user/MasterBondVideo</a> </p> <p>You can embed any of our videos on your website. </p> <p>CONTACT<br> James Brenner, Marketing Manager<br> Email: <a href="mailto:jbrenner@masterbond.com">jbrenner@masterbond.com</a><br> Tel: +1-201-343-8983<br> Fax: +1-201-343-2132</p> <p>MASTER BOND INC.<br> 154 Hobart Street <br> Hackensack, NJ 07601-3922 <br> Web: <a href="https://www.masterbond.com/">www.masterbond.com</a></p> <p># # # <strong></strong></p> </body> </html>