The following is a news release from Master Bond Inc. You have received it because you are listed as an editor for your publication. Attached to this email is a low resolution version of the photograph that is included in the press kit for this product. A high resolution version of this image and files with the body text of this release in Word, HTML and text formats are available at https://www.masterbond.com/newsrelease/ep21ac. ----------------------------------------------------------------- FOR IMMEDIATE RELEASE UL Certified Epoxy Encapsulant Resists Arcing Without Igniting Master Bond EP21AC is a two part epoxy with a non-halogenated filler that is formulated for applications where arc resistance and flame retardancy are required. Electrical arcing is a challenge for numerous electronic or electrical devices; this occurs when electricity jumps from one connection to another, resulting in an electrical breakdown. The air surrounding the current becomes ionized and arcs, which may lead to combustion and fire. EP21AC is designed primarily with the aim to prevent arcing related issues. “EP21AC withstood over 150 arcs without igniting and therefore was assigned the highest PLC (Performance Level Category) of 0 under the UL746A High Amp Arc Ignition test,” says Rohit Ramnath, Senior Product Engineer. “The compound is also flame retardant, as per the UL94HB standard for flammability testing. This combination of unique performance properties makes EP21AC suitable for encapsulating, potting or coating in many demanding applications.” The system is toughened, with an elongation of 10 to 20%, and is capable of resisting thermo-mechanical stresses. It is an excellent electrical insulator with a volume resistivity greater than 1014 ohm-cm, and a dielectric constant of 4.7 at 75°F. Other noteworthy properties include a tensile strength of 5,000-6,000 psi, and a tensile modulus of 300,000-350,000 psi at 75°F. It is serviceable over the temperature range of -60°C to +90°C [-75°F to +194°F]. EP21AC has a convenient to use 1 to 1 mix ratio by weight and cures at room temperature, or more rapidly with heat. It has good flow properties with a mixed viscosity of 30,000-50,000 cps, and a relatively long working life of 75-120 minutes at room temperature. This compound bonds well to a variety of substrates including metals, ceramics, composites and many plastics and rubbers. It is available for use in ounce kits, ½ pint, pint, quart and gallon container kits. Specialty packaging is also available in premixed and frozen syringes. Master Bond Flame Resistant Adhesives Master Bond EP21AC passed UL746A High Amp Arc Ignition test with the highest rating, which is a Performance Level Category or PLC of 0. This epoxy compound, when cured at a thickness of 3.0 mm, withstood 150 arcs without ignition. It also passed the UL94HB flammability test. Read more about Master Bond’s flame resistant adhesives at https://www.masterbond.com/properties/flame-resistant-adhesives-sealants-coatings-potting-compounds or contact Tech Support. Phone: +1-201-343-8983 Fax: +1-201-343-2132 Email: technical@masterbond.com. Note to Editors: For a full product description, please visit: https://www.masterbond.com/tds/ep21ac Check out new videos on our YouTube channel: https://www.youtube.com/user/MasterBondVideo You can embed any of our videos on your website. CONTACT James Brenner, Marketing Manager Email: jbrenner@masterbond.com Tel: +1-201-343-8983 Fax: +1-201-343-2132 MASTER BOND INC. 154 Hobart Street Hackensack, NJ 07601-3922 Web: www.masterbond.com # # #