Eltecks corpn presents polymer thick-film [ptf] inks designed to screen-print on a variety of substrates. And have high flexural strength, adhesion and excellent aberration and scratch resistance. They are available in six types, viz, 1238-b[100], 12 38-d, 1738-a & 1738-b, 5238-b[100] 5238-d and 9108-a. And find extensive use in flexible circuits, membrane touch keyboards, medical sensors, like glucose biosensors, ecg electrodes, rigid substrates, etc.