All arc welding processes radiate hazardous UV- and IR-rays. Even people passing by the area are endangered by these rays. The “Health and Safety at Work Act” stipulates that premises, plant and systems of work must be safe and without risk to health. This would include ensuring that all persons are protected against the harmful effects of these rays on the eyes and skin. TransTac welding curtains and strip curtains protect according to the DIN EN 1598 standard and offer optimal protection during welding with a risk factor. Moreover the curtains also protect against grinding and spatter. Draughts are minimised because the area is enclosed by the curtains thus helping to retain the protective atmosphere during gas-shielded welding. Further fields of application are to protect against grinding, dusts, cold and sunlight as well as visual protection and darkening for crack tests. Welding protective curtains in T75M (dark green), T55 (eurogreen), T50 (red-brown) and T40 (red-orange) protect against hazardous rays and are certified according DIN EN 1598.