Case Study: Swiss precision using TPE

Whenever fractions of a millimeter have to be measured in the lab or shop, a vernier caliper is needed. This measuring instrument, whether mechanical or digital, is standard equipment for many types of manual tasks. The digital vernier caliper from Swiss measuring product specialist Tesa is called Twin-CAL IP67, and bears the label ‘Swiss Made. Its digital display is now enclosed in a protective TPE from elastomer specialist Kraiburg. The grade, For-Tec E, gives the precision measuring instrument the necessary protection against usual non-polar media and grease.

With excellent adhesion to PA12 and resistance to grease, dust and oils the For-Tec E portfolio was selected. The housing complies with IP 67, a European standard for classification of the degree of protection of electronic components or devices in housings.

Protected by a steel plate and enclosed with the robust and highly resistant For-Tec E, the housing of the Twin-CAL IP67 ensures durability and optimal sensitivity during the measurement. The material features good touch properties, and the vernier caliper fits ergonomically in the hand for precise measurements. The instrument is designed for wireless or wired operation: measurement data can be sent to a PC or tablet computer either via USB, TWIN (Tesa Wireless Interface) or a Digimatic interface.

For applications in entertainment electronics, as well as for electric tools and plug-type connections, the feel and look of the materials used are extremely important. Thermoplastic Elastomers of the For-Tec E product group can be dyed to precise specifications in various colours.