Coated pieces after 600 hours in ASTM B-117 salt fog testing; VpCI®-368 on the left, black paint on the right (photo: Cortec®)

Cortec’s time-proven VpCI®-368 coating has just become more powerful with the addition of extra Vapor phase Corrosion Inhibitors. Already, VpCI®-368 provides excellent protection to metal substrates exposed to harsh outdoor conditions. The dark brown viscous liquid dries into a firm moisture-displacing wax-like film that can be removed by mineral spirits or alkaline cleaners such as Cortec® VpCI®-414. The film can be used for a variety of applications where heavy-duty corrosion protection is needed:

• Pipe coating
• Parts storage
• Underbody coating
• Wire rope
• Steel plate
• Machined parts

VpCI®-368 has an extensive record of use for mothballing and layup of equipment, protection of shipments, and preservation of spares.

Now, VpCI®-368 EVP (Extra Vapour Protection) is also available for application in complex, sealed spaces where a greater concentration of vapour inhibitor is beneficial. The extra dose of Cortec® VpCI® vaporises from the coating, fills the enclosed space, and adsorbs on difficult-to-reach surfaces. This is helpful on applications such as pipe internals where it is challenging to thoroughly cover all metal substrates.

VpCI®-368 EVP coating is flexible and offers excellent outdoor protection that is much easier to handle and remove than traditional wax-based coatings commonly used in military and similar applications. VpCI®-368 EVP is UV resistant and passes 900-1500 hours of ASTM B-117 intense salt spray testing applied at 2-3 mils on carbon steel. It also provides multi-metal protection on stainless steel, copper, aluminium, and cast iron. The cured film is heat stable up to 392°F (200°C) and is commercially equivalent to MIL-PRF-16173E (Grades 1 and 2). It can be applied by spray or brush.

VpCI®-368 EVP is classified as NATO 6850-66-132-5848, NATO 6850-66-132-6099, NSN 8030-00-062-6950, NSN 8030-00-231-2345, NSN 8030-00-244-1300, and NSN 8030-01-470-2601.

Cortec’s VpCI®-368 EVP conforms to the following test methods: ASTM D-1735 (Water Fog Cabinet), ASTM D-1748 (Humidity Cabinet), ASTM B-117 (Salt Fog Cabinet), ASTM D3690 (VOC), ASTM D522 (Flexibility), MIL-PRF-16173E (Grade 2), NACE (Minimum Surface Preparation Guideline), NACE RP0487-2000 (Selection of Rust Preventives), and SSPC (Minimum Surface Preparation Guideline).

Tags: Cortec®