- For the protection of metal surfaced in most severe environments. Designed to be applied over wire brushed surfaces in exposed, underground and underwater applications.
- To guard against voids and pockets during wrapping.
- Petro mastic should be used to contour complex shapes such as valves and flanges.
- Surface preparation: Remove all contaminants such as dirt, oil, scale and excessive moisture. Remove all loose rust, paint and other residue by hand or power tool in accordance with AS 1627-1977 or AS 1627, part 2- 1975.
- All surfaces should be coated with Petro Primer Paste to fill any hollow or surface irregularity and to ensure good contact of the tape.