Description
The VpCI®-111 emitter is Cortec’s large self-stick emitter cup for non-ventilated control boxes, cabinets and tool boxes: a 2¼″-diameter × 1¼″-high plastic cartridge of vapor-phase corrosion inhibitor behind a patented breathable Tyvek® membrane, protecting up to 11 ft³ (312 L) of enclosed volume for up to 24 months. Peel the backing, press it inside the enclosure, fill in the date label, and the terminals, relays, contacts and housings inside stay corrosion-free during operation, shipping or storage with no spraying, wiping or dipping.
The Tyvek membrane releases the inhibitor slowly and evenly, so one VpCI-111 does the work of eleven VpCI-101 devices in a full-size panel. The molecules do not interfere with electrical, optical or mechanical performance, the emitter works in polluted and humid environments and against salt, H2S, SO2 and NH3, and it protects multiple metals. It is free of nitrites, halogens and phosphates, accepted by the FDA for electrical equipment in food plants and by the Canadian Food Inspection Agency for indirect food contact, and the powder is a commercial equivalent to MIL-I-22110C; the emitter carries NSN 6850-01-408-9025 and U.S. military and NATO approval. In the Cortec Product Consultation Guide emitter devices are rated 1, enclosed: they work inside a closed housing, not on an open frame. A VpCI-111 replaces periodic contact-cleaner sprays and silica-gel packs in motor control centers, switchgear and instrument cabinets, and it is Cortec’s specified emitter for the electrical sections of shrink-wrapped equipment stored outdoors.
Typical applications
- Operating, packaged and stored electrical equipment
- Control boxes, cabinets and motor control centers
- Marine navigation and communication equipment
- Aerospace electrical controls
- Electric motors and switching equipment
- Fuse boxes, power boxes, wireways and terminal boxes
- Medical, scientific and measuring instruments
- Telecommunications equipment and remote electronic devices
- Tool boxes, parts storage and other containers holding metal
How to use VpCI-111
- Install early. Fit the emitter at the earliest possible time, preferably during manufacturing, assembly or the start of a lay-up, before corrosion has started.
- Size the dose. One emitter per 11 ft³ (312 L) of enclosure volume; a 36″ × 36″ × 12″ panel (9 ft³) takes one, a 72″ × 36″ × 24″ cabinet (36 ft³) takes four. For boxes under 1 ft³ use VpCI-101; for 1 to 5 ft³ use VpCI-105. Spread multiple emitters through a large cabinet.
- Pick and clean the spot. Choose a surface inside the enclosure out of the way of moving parts and heat; verify it is clean and free of debris. The cup can be mounted in any position.
- Peel and stick. Peel the protective strip from the self-stick back and press the emitter firmly to the surface. Fill in the self-stick date label.
- Close the enclosure. The VpCI vapor fills the housing within about a day and condenses as a molecular layer on every metal surface, including recesses a spray cannot reach. Protection is continuous for up to 24 months during operation or shutdown.
- Replace on a schedule. If the enclosure is not totally airtight, or the access doors are opened frequently, replace the emitter more often than every two years; replace it after any period of heavy maintenance.
- Add a light spray if wanted. For additional protection mist the enclosure very lightly with ElectriCorr VpCI-238 (indoor) or VpCI-239 (outdoor).
- Store unused emitters sealed. Keep the carton closed until installation.
Cortec’s emitter formats for enclosures:
| Product | Format | Protects | Packaging |
|---|---|---|---|
| VpCI-101 | 3″ × 1¼″ × ¼″ self-stick foam device | 1 ft³ (28 L) | 50 per carton |
| VpCI-105 | 2¼″ dia × ¾″ Tyvek-membrane cup, self-stick | 5 ft³ (142 L) | 20 per carton |
| VpCI-111 | 2¼″ dia × 1¼″ Tyvek-membrane cup, self-stick | 11 ft³ (312 L) | 10 per carton |
| VpCI-170 | 20′ × 2″ × ¼″ adhesive foam tape | 1 ft³ per linear inch | 1 roll per carton |
Combining with other VpCI packaging
In a mothballing or export package the emitter handles the electrical section while the rest of the machine is covered by the packaging line: VpCI-132 foam pads or BioPad in the mechanical voids, VpCI-308 or EcoPouch powder pouches in tanks and pipe, MilCorr or VpCI-126 HP UV shrink film outside for outdoor storage, and a VpCI-126 bag indoors. Cortec’s published outdoor-storage recipe for heavy equipment is exactly this: MilCorr shrink wrap with VpCI-105 or VpCI-111 emitters placed inside near the electrical components. For panels that also need cleaning, ElectriCorr VpCI-238 (indoor) or VpCI-239 (outdoor) is the companion spray.
Where it fits in the Cortec line
Choose the emitter by enclosure volume: VpCI-101 for boxes up to 1 ft³, VpCI-105 to 5 ft³, VpCI-111 to 11 ft³, and several units or VpCI-170 foam tape (1 ft³ per inch) for large cabinets. The 1″ VpCI-133 adhesive square (0.25 ft³) covers the smallest housings. All of these are rated 1, enclosed, in the consultation guide and are meant for closed housings; for packaged parts rather than live equipment the VpCI-130 series foams, BioPad and Cor-Pak pouches are the usual choice. Browse the full Cortec VpCI line or the VpCI product selection guide.
Field notes
A North Dakota city wastewater utility was losing one or two HMI panels every six months to H2S in its pump houses, at 15,000 to 40,000 US dollars each. Now each panel gets reduced airflow, a light mist of ElectriCorr VpCI-239, one Corrosorber cup and one VpCI-111 emitter, renewed yearly. Zero failures in the first year against two to four a year before, at under 1% of replacement cost. (Cortec Case History #669)
An Oklahoma and Texas surplus pipeline-valve dealer stores inventory from weeks to years, including 30 to 42 inch trunnion ball valves over 40,000 lb outdoors. Since late 2020 each valve gets a VpCI-105 or VpCI-111 emitter sized to its internal volume, EcoAir VpCI-337 sprayed on all internal surfaces, openings covered with VpCI-126 Blue, and the giants custom VpCI-126 HP UV bags. (Cortec Case History #762)
A Big Three powertrain plant in Romulus, Michigan proved its build-ahead pallet recipe in a 40-foot trailer cycled at 80 to 100% humidity: ElectriCorr VpCI-238 on open connectors, a 68 by 68 inch 8 mil VpCI-126 bag per engine with two VpCI-131 foam strips, and crankshaft, head and block pallets with VpCI-126 sheets, 6 to 15 foam strips and 12 to 24 VpCI-111 cups, stretch-wrapped in Cor-Pak. (Cortec Case History #107)
Specifications
| Protects | Up to 11 cubic feet (312 L) per emitter |
|---|---|
| Protection period | Up to 24 months during operation and/or shutdown |
| Metals | Multimetal (ferrous and non-ferrous) |
| Function | VpCI emitter |
| Construction | Patented plastic cartridge with breathable Tyvek® membrane; self-stick back and self-stick date label |
| Emitter size | 2¼″ diameter × 1¼″ high (5.7 × 3.2 cm) |
| Composition | Free of nitrites, halogens and phosphates; non-toxic; VOC meets Southern California clean-air regulations |
| Effective against | Salt, moisture, airborne contaminants, H2S, SO2, NH3 |
| Standards | Powder is a commercial equivalent to MIL-I-22110C |
| Listings | NSN #6850-01-408-9025; approved for U.S. military and NATO; FDA acceptance for electrical equipment in food processing plants; Canadian Food Inspection Agency acceptance for indirect food contact; IBM approval #44V5421 |
| Consultation guide rating | 1 – enclosed (control boxes, cabinets, housings) |
| Installation | Peel and stick, any position |
| Replacement | Every 2 years; sooner if the enclosure is not airtight or is opened often, and after heavy maintenance |
| Storage | Do not expose to temperatures above 185 °F (85 °C) |
| Size | 10 per carton |
| Shipping weight | 1 lb (0.5 kg) |
| Availability | In stock |
| Cortec product number | 15000386 |
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.
