CPSM 195/102CPSM is a high expansion, tubular sleeve with an internally coated mastic sealant. To get specific with the nomenclature, CPSM stands for Corrosion Protection Sleeve and the M stands for metric (since that is how it is sized...in mm.) Looking at the sizing, the 195/102 is quite simple. The 195 is the ID of the tubular sleeve as supplied (195mm = 7.6771653".) The 102 is the ID to which the shrink sleeve will shrink down (102mm = 40.15748".) It can actually shrink slightly smaller than that even as that is dictated by the backing shrinking down. As the backing shrinks down, the mastic adhesive actually thickens resulting in a solid seal there.
CSPM is a thick walled, radiation crosslinked, heat shrinkable polyolefin. It has historically been used to encapsulate mechanical couplings and straight pipe surfaces with a strong, impervious seal. While the sleeve conforms to the shape of the coupling and/or pipe, the sealant softens and is forced into all surface irregularities, ensuring a permanent environmental seal. CPSM sleeves are are easy and fast to install, bonding effectively to metals, plastics and other materials. Should the backing be mechanically damaged, the sealant will fill the damaged area, preventing corrosion.
CPSM also has a high resistance to bending, impact, abrasion, penetration, corrosive gases or fluids, disbonding and long term storage. The high shrink ratio allows the CPSM 195/102 to be used on a wide range of different substrate configurations and sizes.
Installation is carried out in just a few short steps:
- Slide CPSM into place before welding or attaching coupling.
- Clean weld area with a hand or power wire brush to remove rust, dirt and foreign materials.
- Preheat field joint and adjacent factory applied coating to 140F to 180F.
- Remove sleeves inner protection release paper and center sleeve over area to be coated.
- Heat sleeve beginning at center working torch circumferentially (around the circumference of the sleeve) heating evenly.
- Shrink toward one end; return to middle and then shrink toward the other end.
- Sleeve is fully and properly installed when: there are no cold spots or dimples on sleeve surface; weld bead or coupling profile can be seen through sleeve and mastic flow is evident at both edges of sleeve.