VPI 1020
Margel VPI1020 - Anti Corrosion Patch System
QED’s anti-corrosion patches are pre-impregnated with QED’s Margel™ corrosion inhibitor. Patches are applied directly to steel pipes and pipelines to provide total protection from corrosion for a period of up to 15 years. The patches are over-wrapped with insulation (where appropriate) and a final layer of VentureClad/tape (see Figure E).
The patches are suitable for application on exposed steel pipes of all sizes being equally effective on both new and heavily corroded steel. In comparison to other anti-corrosion treatments the steel surface of the pipe to be protected requires no preparation; the only requirement is the patch is placed on the steel surface to be protected.
The Margel™ corrosion inhibitor is proven in practice and provides a highly effective corrosion resistance layer on steel by coating with a mono-molecular chemical layer which inhibits corrosion. The outer cores of the tape will seal the vapour given off by the Margel™ corrosion inhibitor, containing it within the tape ensuring that it protects the steel of the pipe. The patch and tape system are engineered to withstand continuous temperatures of up to 149°C.
VentureClad™ and Venture Tapes are coated with a special acrylic pressure sensitive adhesive system which combines superior quick stick at normal temperatures and also at extreme low temperatures. The serviceable life of the tape is expected to be in excess of 15 years. The special laminated construction of the tape makes it highly puncture and tear resistant as well as flame retardant. The tapes have been successfully used in the petrochemical and cryogenic industries as a vapour barrier closure system. With the Margel™ migrating corrosion inhibitor the combined product is extremely effective in combating Corrosion Under Insulation (CUI).