High density PTFE thread seal tape for use in high pressure systems, for special purpose. According to mil-t27730a, UL1321.

Width: 12mm 19mm 25mm
Thickness: 0.075mm, 0.1mm
Length: 5m, 10m
Density: 0.6g/cm3--1.5g/cm3

Yellow gas line teflon thread seal tape
Designed for gas lines of all types...Natural gas, propane and butane lines. Meets gas company standard world wide. The yellow gas seal tape is a superior, high density teflon thread sealant tape specially developed for use in the natural gas industry. It may also be used in many other hydrocarbon applications.

Pink plumbers teflon thread seal tape
For plumbers and pipe fitters. Colors coded pink to signify this is heavier than standard white thread seal tapes. A premium high density tape. Ensures leak free joints

White preminum high density
For all industrial applications. Made from 100% virgin PTFE. No pigments, no additives. May be used on all applications including water, oil, chemical, medical and food processing where non-contamination standards are high.