Master Bond Polymer System Supreme 3HTND-2GT is a one component toughened epoxy resin system specially designed for high performance glob top applications. This uniquely formulated epoxy composition features exceptionally fast cures at moderately elevated temperatures. It offers outstanding protection against adverse environmental conditions, vibration, impact and thermal shock for components on circuit boards including the more fragile and delicate ones. Additionally, Supreme 3HTND-2GT has excellent electrical insulation properties, high physical strength characteristics and superior adhesion to metals, plastics and ceramics, as well as to flexible and rigid circuit board materials. Supreme 3HTND-2GT can be easily applied to specific, sharply defined circuit board areas and will not flow during application or cure beyond the desired board section. The most important advantages over conventional two component glob top compounds include ease of application with no need for mixing, unlimited working life, very fast cure cycles, along with high insulation and strength properties. Supreme 3HTND-2GT is 100% reactive and does not emit any volatiles during cure. The formulation is specially designed so that ionic impurities are negligible.

Master Bond Polymer System Supreme 3HTND-2GT has flow properties especially designed for effective glob top application using commercially available dispensing equipment. Cures can be effected in 20-30 minutes at 250°F, 5-10 minutes at 300°F, or even shorter times at higher temperatures. Minimum cure temperature is 230°F. Supreme 3HTND-2GT has superior durability and long term dimensional stability. The cured material is highly resistant to heat, moisture and many chemicals including acids, bases, salts and many solvents. The volume resistivity exceeds 10¹⁴ ohm-cm at 75°F. The service temperature range is -100°F to +400°F. Supreme 3HTND-2GT has excellent storage stability with a shelf life of six months at ambient temperatures with no refrigeration required. Supreme 3HTND-2GT is normally colored yellow, but can be formulated in other colors as needed. Flow properties also can be tailored for specific application needs. Supreme 3HTND-2GT is also available in a thermally conductive version called Supreme 3AOHTND-2GT. Both versions are now packaged in syringes for convenient dispensing.