For superb adherence to a wide variety of substrates including many metals, plastics, rubbers, ceramics and glass, Polymer System EP31 was developed by Master Bond Inc. This two-part system features extraordinary adhesion with a lap shear strength exceeding 4,600 psi, a peel strength surpassing 40 pli, a tensile modulus of more than 410,000 psi and a flexural strength of over 13,000 psi. With an excellent resistance to many chemicals including water, oil and fuels, it is also an outstanding electrical insulator. EP31 has a versatile cure schedule and can cure at room temperature or more quickly at elevated temperatures. Other notable characteristics include a Shore D Hardness of greater than 75 and low shrinkage upon cure. It is easily processed with a convenient 3:1 mix ratio by weight and has a service temperature range of -60°F to 250°F. Available in both black and optically clear, EP31 is sold in half pints, pints, quarts, 1 gallon and 5 gallon containers. It is also available in a convenient non-drip version called EP31ND.