Sure-Flex PVC Yellow Safety Warning Strip is a nominal 35-mil-thick (0.89 mm) polyester reinforced PVC fl ashing. The PVC Yellow Safety Warning Strip is available in 6"-wide (150mm) by 150'-long (45.7m) rolls. The PVC Yellow Safety Warning Strip has a permanent color fast printed yellow coating that is highly resistant to outdoor fading - the pigments are similar to those used in traffi c paints using oxides as a fundamental building block. A permanent vinyl acrylic with a UV inhibitor is used as a clear coat to further protect the retention of color. This is the same process as is used for yellow highway stripping, and resists fading, compared to colored membrane, which fades over time.