In the 1940s, an era characterized by the effects of World War II and the associated global political uncertainty, the city of Wuppertal and its production site remain largely unscathed. Walther presents groundbreaking solutions in the post-war period, offering technological advancements that not only rely on progress but also address the specific challenges of the time.

The invention of portable pressure tanks allows more effective processing of paints and coating materials. These forward-looking tanks increase production capacity by bypassing the time-consuming refilling of flow or suction cups. They find application in various industries, gaining popularity rapidly.

Simultaneously, Walther is an early adopter of the harmful effects of spray mist and develops a range of extraction systems to minimize exposure to health-hazardous spray mist in the working environment. These include ventilation systems, water-flooded spray booths, and booths where workpieces are coated hanging or rotating on a turntable. Additionally, air heaters and chamber dryers are introduced to significantly reduce the drying times of workpieces. Combined spray and drying boxes, essential for larger car painting shops, become indispensable and an integral part of the portfolio.

Walther's advances have had a lasting impact on coating technology, while its commitment to performance and employee health has cemented the company's reputation as a pioneer in the industry.