ARMOR SHIELD® CF33 Volatile Corrosion Inhibitor (VCI) foam pads for protecting machined metal parts, tooling, and electrical components from rust and corrosion during storage and shipment. Measuring 2" x 5" x 1/4", these pads embed ARMOR VCI formulation directly into the foam matrix — releasing corrosion-inhibiting vapors into the surrounding atmosphere without requiring direct contact with the protected metal surface.

Specs: 2" x 5" x 1/4" | VCI-Embedded Foam | ARMOR SHIELD® CF33 | 1,000/CS | 3-Year Shelf Life

Applications

Used as corrosion emitters and part separators in electrical panel cabinets and junction boxes where paper or poly VCI materials cannot be used due to space constraints or conductor proximity concerns. Also used as interleave pads between machined metal components, as void fill in metal parts packaging, and as cushioning buffers in precision tooling shipments requiring both physical protection and corrosion inhibition.

Features

• ARMOR VCI formulation embedded in foam matrix — continuous vapor emission without direct contact


• Corrosion inhibition plus cushioning — provides physical separation and rust protection simultaneously


• 2" x 5" x 1/4" format — fits tight spaces in electrical cabinets and small parts packaging


• CF33 chemistry — compatible with ferrous and many non-ferrous metals


• 3-year shelf life when properly stored


• 1,000 pads per case — supports industrial-scale packaging operations

Material Notes

Pads are manufactured with ARMOR SHIELD® CF33 VCI chemistry embedded throughout the foam. VCI vapors saturate the enclosed environment to form a molecular protective layer on exposed metal surfaces. No direct contact is required. Store at temperatures below 120°F and away from direct sunlight to maintain VCI efficacy. Shelf life is approximately 3 years under proper storage conditions.

Use Case Notes

The 2" x 5" pad size is well suited for compartmentalized parts trays, small electrical enclosures, and use as interleave separators between flat metal stampings, shims, or precision components. Where larger emitter formats (such as 10" x 10" sheets) are impractical, these compact pads provide targeted corrosion protection in confined geometries.

Common Questions

Q: Do these pads require direct metal contact to work?
A: No. VCI vapors are released passively into the enclosed space and condense on metal surfaces to form a protective layer, regardless of whether the pad touches the metal directly.

Q: What metals are compatible with CF33 VCI chemistry?
A: CF33 is effective on ferrous metals including carbon steel and cast iron. Compatibility with non-ferrous metals such as copper, brass, and aluminum should be verified based on specific alloy composition and application.

Q: What is the shelf life of these pads?
A: Approximately 3 years when stored below 120°F and out of direct sunlight in original sealed packaging.

Why Source These Pads

1,000-count case quantity supports production-scale metal parts packaging operations. The combination of physical cushioning and active corrosion inhibition in a single material reduces the need for separate interleave and VCI film layers. Compact 2" x 5" format adapts to small-cavity applications where standard-size VCI emitters do not fit.