The terminations should not be bent closer than 1.6mm from the body of the resistor, and the recommended bend radius is 1.2mm. Terminations are solderable to within 4mm from the resistor body. When cold, vitreous enamel has excellent insulation resistance. In common with all insulation materials, the specific resistance of the enamel decreases with increased temperatures. Therefore, resistors operated at near-maximum temperature cannot be considered as insulated and should not be used in contact with any conductive material.