Margel VPI 595CUI®
Corrosion Inhibitor for Corrosion Under Insulation (CUI) Protection
Protech Global Ltd has formulated a unique anti-corrosion inhibitor for the protection of steel pipe surfaces from corrosion under insulation. Designed to be installed directly onto the surface of pipes fitted with insulation materials, Margel VPI 595CUI® is a mid to long term fit and forget cost effective solution to corrosion problems in industry the world over. Margel VPI 595CUI® is formulated for use in temperatures from -55 ºC to +25ºC, with this upper temperature limit currently bearing witness to stringent scientific test.
Margel VPI 595CUI®, in liquid or patch form, works by emitting a controlled amount of corrosion inhibiting vapour that when applied to steel surfaces, disperses and is absorbed by its substrate, blocking the path of chlorides, water and oxygen. Margel VPI 595CUI® is manufactured with organic compounds and forms a monomolecular layer onto the surface of steel, this eliminates any further corrosion, working equally well on both newly manufactured or already corroded steel products.
Margel VPI 595CUI® migrates up to 2mtrs from its placement location, which is dependent on environmental condition, and will start working from the moment it is applied, typically eliminating further corrosion activity as soon as14 days from application. ProTech Global have a portfolio of projects where Margel® is still working 25 years from application. Margel® variants have to date been applied to more than 2000 projects worldwide.
Margel VPI 595CUI® is unaffected by damp/humid environments and works best in hermetically sealed environment to prolong the effectiveness. This can be achieved by sealing with a suitable enclosure system such as ProTech Global’s Proclad150™️ or Proclad350 PLUS™️.
Characteristics / Advantages
Please find below the key characteristics of our Margel VPI 595CUI® product. For more information and enquiries please get in touch.
Compatible with other systems such as fire and flame retardants, paints and sealants.
- Supplied in boxes of 25 patches or in 5l or 25 containers in liquid form
- Manufactured and supplied from the UK, shipping worldwide
- Appearance: small patches of liquid form
- Storage: store below 20 ºC
- Applicaiton conditions: preferable to apply below 25 ºC
- Shelf life: 24 months
Margel VPI 595CUI® is widely used for the following applications.
Margel VPI 595CUI® Information
Margel VPI 595CUI® should be applied within the vicinity of the steel to be protected. Product should be applied as per the indicated consumption rate(above) directly to the steel surface. Once applied it is preferable to have low air movement where the product is placed to avoid loss of vapour pressure and to ensure continued concentration of the vapours to migrate and coat the steel surfaces. If water ingress is anticipated at time of application, then care should be taken to apply Margel VPI 595CUI® on the upper side of the intended surface to avoid sitting in pooling water. Water will not affect the properties of the corrosion inhibitor but may impact the migration of vapour and if significant reduce the effective life of the Margel VPI 595CUI® product.
Margel VPI 595CUI® requires no preparation of the steel surface to be protected. It works equally well on both newly manufactured steel as well as corroded steel surfaces.
|ProTech Global recommends a coverage rate of 2 patches per m² or 15ml measure of liquid per m² (minimum)|
Protech Global Ltd will provide advice on a per project basis to determine long term effective protection.
Margel VPI 600CUF® gel is formulated for use on pipelines with operating temperatures up to 180ºC. This product is designed for steel products without insulation.
Test Results/Performance Data
Extensive testing is currently in progress and trials are possible on a limited basis by application to ProTech Global.
Data Sheets & Downloads
Looking for a data sheet or an installation guide for our Margel VPI 595CUI® product range, then the following downloads might come in handy.