How does this flooring handing the use of a spot welder in a garage setting?

Our 7mm Textured Flex Tiles can handle the use of a spot welder over them. For the most part, the sparks from the use of the welder will not affect the floor. If a very hot spark were to linger for a period, you might see some melting where the spark landed. Other than that, these tiles were meant for this type of install.