The Araldite HY 951 Epoxy Hardener is mixed with epoxy resin for coating or encapsulating electronic components which work at low voltages. This hardener is a clear liquid with a flash point of 110 degrees centigrade, mix ratio 100:10 and specific gravity is 0.98 gm/cm3 at 25 degrees centigrade. The hardener is capable of producing medium-viscosity adhesives in order to bond ceramics, glasses, rubbers, plastics and other substrates. Mix this hardener with resin thoroughly at room temperature. You can easily apply this hardener over the large surfaces of substrates. The Araldite HY 951 Epoxy Hardener is admired for good resistivity against chemical & atmospheric conditions, excellent mechanical strength and better electrical properties.