VCI Poly Sheeting and Strips

VCI molecules work within an enclosed space, so the film must surround or line the compatible metal closely enough for the documented protection method. Measure the widest part, required overlap and cut length before selecting a roll. The 20-inch roll can reduce trimming on narrow parts, while 36- and 48-inch widths cover broader components or containers with fewer seams.

Parts should be clean, dry and free from residues that interfere with corrosion protection. Confirm whether the exact VCI chemistry is suitable for the metal or metal combination being packed. Do not extend a ferrous-metal claim to copper, brass, aluminum, galvanized surfaces or mixed-metal assemblies without product documentation.

The blue color identifies this film family but does not prove that a cut piece was applied correctly. Four mil describes film thickness, not a guaranteed protection period or puncture rating. Storage temperature, humidity, contamination, enclosure quality, part condition and distance from the film all influence the corrosion-control program.

VCI poly sheeting is not the same as anti-static or static-shielding material. Use anti-static stretch film only when that separate property matches the application. Confirm the exact VCI technical data, package design and inspection interval before production, and retest after changing the metal, cleaner, environment or storage duration.