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ICSC 600 series are two component polyamide epoxies used as topcoats for the polyamide epoxy primers. They offer the superior durability and chemical resistance that so characterizes the ICSC epoxies. ICSC 670, 672, and 678 epoxies cure with a gloss finish that is extremely resistant to abrasion, salt spray corrosion, and the rigors of severe chemical exposure.
As with all polyamide epoxies, they are primarily designed to be used on steel substrates. These uses include marine applications where exposure to saltwater and salt spray are expected, such as on oil rigs, platforms, and barges. These epoxies are used in refineries and production factories where exposures to chemical spills and vapors are encountered on a continual basis. However, they are not recommended to be used in areas receiving spillage of concentrated acid solutions.
For steel substrates, the epoxy topcoat (670, 672, 678) should be applied over ICSC 661 Epoxy Primers. It should be applied at a rate of 6-8 wet mils per coat. The final cured system, composed of epoxy primer and topcoat, should consist of 10-15 mils of dry film thickness.
It is often advantageous to use an intermediate epoxy coating of a different color to aid in applying the fresh coating evenly. This also serves as a long term abrasion wear indicator in critical applications.
The epoxy may be applies by brush, roller, or by conventional or airless spray. However, best results are usually obtained with a spray application.
As with all polyamide epoxies, after thoroughly mixing the two components as per instructions, the mixture MUST be allowed to stand for 30 minutes before use. This incubation time permits the epoxy to properly begin its reaction before application. This sweat-in time must be observed for all polyamide epoxies.