Description
VpCI®-137 is the roll format of Cortec’s VpCI-130 series: 130 feet (39.6 m) of 54″-wide, ¼″-thick polyurethane foam impregnated with vapor-phase corrosion inhibitor, protecting up to 10 ft³ of enclosed space per square foot of foam. Cut it to size for coil eyes, crate liners, engine covers and any custom void the stock pads do not fit, and it delivers VpCI, desiccant and static-dissipative action in one material.
The foam carries roughly ten times more VpCI per square foot than a VCI paper or film, which is what lets one pad protect a large void or a coil face. It is nitrite- and chromate-free and protects aluminum, galvanized steel, brass, solder, carbon steels, silver, copper and zinc, so mixed-metal assemblies and circuit boards can share one package. In the Cortec Product Consultation Guide the VpCI-130 series is rated 1, enclosed: it belongs inside a sealed bag, box, crate, shrink wrap or cabinet, not on an open rack. Used that way it replaces oil and grease dips and desiccant-only packs, and parts come out ready to use with no degreasing.
Typical applications
- Boxed assemblies, cartons and export crates
- Electronics, control components and printed circuit boards
- Machined, ground and stamped parts between operations and in storage
- Aluminum and steel coils and other large-surface-area products (VpCI-137)
- Spare-parts storage and mothballed equipment
- Seagoing containers and long-haul overseas shipments
- Engine, gearbox and compressor packaging for storage and transport
- Inside VpCI-126 bags, MilCorr or VpCI-126 HP UV shrink wrap as the extra VpCI source for large voids
How to use VpCI-137
- Start with clean, dry parts. Wash off coolant, fingerprints and salts and dry completely; the foam cannot fix standing water or residue left on the metal.
- Size the dose. Cut 1 ft² of VpCI-137 for every 10 ft³ (3 m³/m²) of package volume: by that rule a 4′ × 4′ × 4′ crate (64 ft³) takes about 6.5 ft², or a strip roughly 54″ × 18″. For coils, run a strip through the eye and across the faces so the large metal surface has direct vapor access, then wrap in VpCI-126 film. Use twice the area for aggressive marine or overseas conditions.
- Place it anywhere in the shared air space. Placement is not critical as long as nothing solid blocks the vapor path between foam and metal. The foam is not a cushion: pressure can wring inhibitor out and leave a residue (wipes off with water or rubbing alcohol). Use plain foam or Cor-Pak VpCI bubble wrap for shock protection.
- Close the package. Seal the VpCI-126 bag, tape the carton, or shrink the MilCorr or VpCI-126 HP UV film; Cortec specifically recommends pairing 130-series foam with VpCI-125/126 film. A sealed enclosure with minimal free air holds the VpCI concentration.
- Allow the void to saturate. The inhibitor condenses as a molecular layer on every metal surface within about a day. After shipping, keep the package closed for 24 hours after arrival so it acclimates to the building before it is opened.
- Reopen and reclose as needed. The layer is self-replenishing while the foam is inside. If a package stays open, or the enclosure is not airtight, add a fresh pad sooner.
- Return to service. Remove the part; no cleaning is required.
- Store unused foam sealed. Shelf life is 2 years in the original package; reseal opened cartons in plastic bags.
The five stock formats in the VpCI-130 series (Cortec VpCI-130 Series data sheet):
| Product | Size | Protects | Packaging |
|---|---|---|---|
| VpCI-131 | 2″ × 10″ × ¼″ pad | 1.5 ft³ (0.042 m³) per pad | 250 per carton |
| VpCI-132 | 10″ × 10″ × ¼″ pad | 8 ft³ (0.23 m³) per pad | 250 per carton |
| VpCI-133 | 1″ × 1″ × ¼″ square, adhesive back | 0.25 ft³ (7 L) per square | 1,000 per carton |
| VpCI-136 | 1″ × 1″ × ¼″ square, no adhesive | 0.25 ft³ (7 L) per square | 1,000 per carton |
| VpCI-137 | 130′ × 54″ × ¼″ roll | 10 ft³ per ft² of foam (3 m³/m²) | 1 roll per carton |
Combining with other VpCI packaging
The standard Cortec system is a VpCI-126 barrier plus foam in the void: a VpCI-126 Blue bag or 126 tubing for indoor and container shipments, MilCorr shrink film or VpCI-126 HP UV with 130-series pads inside for outdoor storage, VpCI-146 paper interleaved between stacked parts, and Desicorr VpCI pouches where humidity is the driver. Parts should be clean and dry before they are packaged; see the Build-All and Magido aqueous parts washers, and where parts wait more than a day or two before packaging, VpCI-377 or BioCorr bridges the gap.
Where it fits in the Cortec line
Within the series, VpCI-131 (1.5 ft³) and VpCI-132 (8 ft³) are drop-in pads for boxes and crates; VpCI-133 (adhesive back) and VpCI-136 (plain) are 1″ squares for small packages and vertical installation; VpCI-137 is the cut-to-length roll for coils and large custom voids. VpCI-137 is the format for coils, large fabrications and anything where a stock pad is the wrong shape; one roll replaces many cartons of pads. BioPad covers the same 1.5 and 8 ft³ volumes on a thinner biobased PLA non-woven. For electrical cabinets use the self-stick VpCI-101 (1 ft³) and VpCI-111 (11 ft³) emitters or VpCI-170 foam tape; for dosing a box by count, Cor-Pak tablets and Cor-Pak 1-MUL pouches. Browse the full Cortec VpCI line or the VpCI product selection guide.
Field notes
A UK power station had three turbines already rusting under tarps in a planned 2 to 3 year outdoor storage. VpCI-132 foam pads around each turbine and VpCI-126 HP UV film shrunk over them with a propane gun gave low-cost outdoor storage for up to 3 years. (Cortec Case History #491)
A Milwaukee, Wisconsin machine shop packed a spare marine-engine crankshaft for up to 10 years: VpCI-369 brushed into every surface and hole, the shaft laid on 10 mil VpCI-126 HP UV film in a long metal box with BioPads throughout, a second sheet over the bracing, and the film heat-shrink-taped with the upper layer overlapping the lower as a watershed. Fit for indoor or outdoor storage. (Cortec Case History #729)
An Italian fabricator building 54 tanks and vessels for a U.S. Gulf Coast LNG project washed the internals with 5% VpCI-418 LM and, before shipment, installed BioPad at 1 m² per 4.5 m³ (11 ft² per 159 ft³) of internal volume. No corrosion through fabrication; residue-free removal at destination. (Cortec Case History #639)
Specifications
| Protects | Up to 10 cubic feet per square foot of foam (3 m³/m²) |
|---|---|
| Roll size | 130′ × 54″ × ¼″ (39.6 m × 1.35 m × 0.64 cm) per the Cortec data sheet |
| Metals | Aluminum, galvanized steel, brass, solder, carbon steels, silver, copper, zinc |
| ESD | Meets MIL-PRF-81705D for static dissipative materials |
| Listings | NSN #6850-01-426-3539 |
| Installation | Cut to size with a knife or shears; no adhesive |
| Function | VpCI emitter, desiccant action and static dissipation in one material |
| Construction | Open-cell polyurethane foam impregnated with VpCI throughout (MIL-PRF-26514G Type 3 Class II foam) |
| VpCI loading | Approximately 10 times more VpCI per square foot than VCI papers and wrapping films |
| Composition | Nitrite- and chromate-free |
| Consultation guide rating | 1 – enclosed (sealed bag, box, crate, shrink wrap or cabinet) |
| Test methods | NACE TM0208-2008 (vapor inhibiting ability); NACE RP0487-2000 (selection of rust preventives) |
| Placement | Anywhere in the shared air space; not for cushioning |
| Shelf life | 2 years sealed in the original package; keep unused foam sealed in plastic bags |
| Use with | VpCI-125/126 film and bags, MilCorr or VpCI-126 HP UV shrink film |
| Size | 132′ × 54″ roll, 1 roll per carton |
| Shipping weight | 62 lb (28 kg) |
| Availability | In stock |
| Cortec product number | 10502650 |
Solvent Recycling Systems is an authorized Cortec® distributor. See the full Cortec VpCI line, browse the VpCI product selection guide, or contact us for volume pricing and lead times.
