The function of the intermediate coat is added thickness plus shielding: it increases total film thickness above the primer and, through lamellar fillers (micaceous iron oxide, glass flake), extends the permeation path of corrosive media, making it the most economical layer for extending anti-corrosion service life in heavy-duty systems. A common build is epoxy zinc-rich primer + epoxy MIO intermediate coat + polyurethane or fluorocarbon topcoat, with a total dry film thickness of up to 240–320 µm, used for bridges, offshore projects, power plants and petrochemical units. Points to observe in selection: the intermediate coat must be compatible with both the primer and the topcoat; the lamellar filler content of MIO intermediate coats affects shielding performance; high-build products reduce the number of coats but sagging and drying time require attention. This page compiles OEM data for intermediate coats from various brands, including recommended film thickness, theoretical spreading rate, recoat interval and system notes.
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Information is subject to the manufacturer's latest version; original technical documents may be updated from time to time. For the latest version or models not listed,Contact Us.
This page compiles original-factory technical data sheets by tag. The same model may appear under several tags at once (for example, a water-borne epoxy primer belongs to "water-borne", "epoxy" and "primer"), the more entry points a model has, the more easily it is found by search habits. For selection advice, coating systems or quotations, contactContact Us.
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