Steel for Air Conditioner Covers and Housings
PCM, VCM, PPGI and PPGL Steel for Indoor Unit Covers, Outdoor Housings and AC Exterior Parts
Everesteel supplies PCM steel, PPGI, PPGL, and VCM laminated steel for air conditioner indoor unit covers, outdoor unit housings, fan covers, side panels, and air deflectors. You buy direct from our coating lines in Jiangyin, China — with custom colors, sample matching, in-house processing, and export packaging built into the supply.
- PCM steel for indoor unit covers, air deflectors, and clean matte-white surfaces
- VCM laminated steel for premium indoor covers with brushed, metallic, or decorative finishes
- PPGL steel for outdoor unit housings exposed to rain, humidity, and corrosion
- PPGI steel for fan covers, side panels, and general AC exterior components
- Coil, slit coil, and cut-to-length sheet supply for OEM AC lines
Own Factory. Own Coating Lines. Direct Manufacturing Supply.
Everesteel is a vertically integrated prepainted steel manufacturer based in Jiangyin, Jiangsu — one of China’s major steel processing hubs. Every coil of AC housing steel that leaves our facility is produced, coated, processed, and packaged in-house, on our own lines, under our own quality system, with 26,000+ tons of annual production capacity supplying buyers in 65+ countries.
You buy direct from the manufacturer, not through a trading intermediary. That means tighter specification control, more consistent batch quality, shorter communication paths, and pricing aligned more closely with actual production conditions.
When you place an order with Everesteel, you deal directly with the team responsible for production and delivery.
26,000+
tons annual production capacity
6,800+
global buyers served
65+
countries supplied worldwide
98.7%
on-time delivery rate
Why Material Selection Matters for AC Housings
Air conditioner housings live in two very different worlds. Indoor covers need a clean, quiet appearance and stable color in the living space. Outdoor housings sit through rain, strong UV, and constant humidity, and often run for years without protection — so the coating and substrate have to fight corrosion the whole time.
That is why most AC manufacturers use different material structures for different parts of the same unit. Before you select, it helps to weigh five factors:
- Panel position — indoor cover, outdoor housing, fan cover, side panel, or air deflector
- Surface appearance — matte white, solid color, brushed, metallic, or anti-fingerprint
- Forming method — bending, stamping, roll forming, or flat panel processing
- Durability and corrosion needs — rain, UV, salt spray, humidity, and coating adhesion
- Cost target — premium indoor finish vs. weather-resistant outdoor housing vs. hidden part
Get these right, and you match the material to where each part actually lives — no rust on outdoor units, no wasted spend on hidden panels.
Recommended Steel Materials by AC Housing Position
Use this table to match PCM, PPGI, PPGL, and VCM to the right part before you request a quote.
| AC Housing Position | Recommended Material | Why It Is Used |
|---|---|---|
| Indoor Unit Covers | PCM steel / VCM laminated steel | Clean matte-white or decorative surface, stable color, and scratch resistance for the visible indoor part |
| Outdoor Unit Housings | PPGL / PPGI | Weather-resistant coating and galvalume or galvanized base for rain, UV, humidity, and corrosion exposure |
| Fan Covers and Side Panels | PCM steel / PPGI | Good forming behavior and coated protection for functional formed parts |
| Air Deflectors | PCM steel | Stable painted surface and clean appearance for moving louvres and visible airflow parts |
| Commercial / Industrial AC Units | PPGL with enhanced coating | Stronger corrosion resistance and coating systems for large or heavily exposed units |
| General Coated AC Parts | PPGI / PCM steel | Standard coated panel production where decorative film is not required |
Not sure which fits your model? Send your housing position and service environment, and our team will recommend a structure before quoting.
PCM vs PPGL for AC Housings
Choosing between PCM and PPGL is one of the most common sourcing decisions for AC housing buyers. Both are pre-finished steel products, so the difference comes down to where the part will actually live.
| Factor | PCM Steel | PPGL Steel |
|---|---|---|
| Surface system | Baked paint coating on steel | Prepainted coating over galvalume (Al-Zn) base |
| Main strength | Clean indoor appearance and stable color | Strong outdoor corrosion and weather resistance |
| Best use | Indoor unit covers, air deflectors, fan covers | Outdoor unit housings and exposed parts |
| Surface options | Matte, gloss, solid color, smooth painted finish | Solid color, weather-resistant coatings by system |
| Corrosion exposure | Indoor / low-moisture use | Rain, UV, humidity, and coastal environments |
| Selection logic | Choose for visible indoor parts | Choose when the part faces outdoor weather |
Quick selection guide:
- Choose PCM for indoor unit covers, air deflectors, and clean matte-white surfaces.
- Choose PPGL for outdoor housings and parts exposed to rain, UV, and humidity.
- Choose PPGI for fan covers, side panels, and general coated parts with moderate exposure.
- Choose VCM laminated steel when an indoor cover needs a premium brushed, metallic, or decorative finish.
Surface Finish Options for AC Housings
AC housings can be specified in different surface styles depending on the unit type and where it is installed. Each finish can be matched to your sample or reference before production begins.
Matte White Finish
A low-reflection white surface, the standard choice for indoor unit covers. Matte white blends into the living space, hides light marks, and gives a clean, understated appliance look.
Solid Color
Uniform single-tone finishes in white, grey, ivory, and custom references for indoor covers, air deflectors, and outdoor housings that follow a set brand color.
Weathering-Resistant Coating
Coating systems built for outdoor exposure, applied over galvalume or galvanized base. These finishes resist fading, rain, and UV, keeping outdoor housings stable through years of service.
Metallic / Brushed Finish
A film or coated surface that creates a silver or brushed-metal look for premium indoor covers, without the cost of solid stainless steel.
Anti-Fingerprint Surface
Recommended for frequently touched indoor covers and control-area surfaces. This finish reduces visible smudges and makes cleaning easier in household and light-commercial use.
Custom Colors
White, silver, grey, black, and custom-matched colors can be supplied to your physical sample, RAL reference, or target unit design. We provide a sample for approval before mass production to help maintain batch consistency.
Typical AC Housing Applications
Processing Capabilities for AC Housing Production
All processing is carried out in-house at our Jiangyin facility, so your material can arrive in the format your AC line actually needs — not just as a master coil.
Slitting
Master coils are slit to custom widths for AC panel fabrication and OEM production lines, with clean edges and tight tolerance control.
Cut-to-Length
Material can be supplied as cut-to-length sheet for direct panel fabrication, stamping, or forming — stacked, protected, and palletized for export.
Protective Film
Protective film can be applied to safeguard visible surfaces during transport, forming, and assembly. Specify film type at time of order.
Sample Matching
We match color and surface finish to your sample, target finish, or reference standard, and provide an approval sample before bulk production.
OEM Support
We support AC OEM and panel manufacturers with custom colors, coating system selection, coil and sheet supply, protective film, export packaging, and repeat-order production.
Get AC Housing Specifications for Your Project
Tell us your housing position, material preference, thickness, width, surface finish, and supply format. Our technical team will confirm feasibility and prepare a recommended material specification for your review.
Typical Specifications for AC Housing Steel
| Parameter | Typical Range |
|---|---|
| Base material | GI, GL (galvalume), EGI, cold-rolled steel |
| Product types | PPGL, PPGI, PCM steel, VCM laminated steel |
| Thickness | 0.30 mm – 1.20 mm |
| Width | 600 mm – 1,250 mm (slit widths available) |
| Surface options | Matte white, solid color, weathering-resistant, metallic, brushed, anti-fingerprint |
| Supply form | Coil, slit coil, cut-to-length sheet |
| Color | White, silver, grey, black, custom colors |
| Coating systems | PE, SMP, HDP, PVDF by exposure requirement |
| MOQ | Depends on specification and finish |
| OEM support | Yes |
| Protective film | Available on request |
- Specifications are indicative and will be confirmed during the technical review at the time of order.
Quality Control and Certifications
Everesteel operates under a documented quality management system that covers incoming substrate inspection, coating and lamination line parameters, surface appearance control, and final product inspection prior to shipment.
Standard quality controls applied to AC housing steel include:
- Incoming substrate inspection for thickness, width, surface condition, and base metal conformity
- Coating or film thickness measurement recorded per batch according to the specified product structure
- Corrosion resistance and salt spray testing arranged for outdoor housing coating systems on request
- Coating or film adhesion testing verified through standard cross-cut and T-bend checks
- Humidity resistance assessed based on project requirements for indoor and outdoor service conditions
- UV and weathering exposure checks available for outdoor and commercial unit coating systems
- Forming performance evaluation for bending and stamping suitability on selected specifications
- Protective film and dimensional checks completed prior to packaging and shipment
FAQs
Q1. What steel is used for air conditioner housings?
AC housings commonly use PCM steel, PPGI, PPGL, and VCM laminated steel. The right choice depends on whether the part is an indoor cover, an outdoor housing, a fan cover, or a side panel.
Q2. What is the difference between PPGL and PPGI for AC housings?
PPGI is prepainted galvanized steel, while PPGL is prepainted galvalume (aluminum-zinc) steel. PPGL offers stronger corrosion and weather resistance, which makes it the preferred choice for outdoor unit housings and exposed parts.
Q3. Which material is best for outdoor AC unit housings?
PPGL is usually best for outdoor housings because its galvalume base and weather-resistant coating resist rain, UV, and humidity over long outdoor service. PPGI can be used where exposure is more moderate.
Q4. Is PCM steel suitable for indoor AC unit covers?
Yes. PCM steel is widely used for indoor covers because it provides a clean matte-white or solid-color surface, stable color, good formability, and practical cost control for the visible indoor part.
Q5. Can PPGL housings survive coastal or high-corrosion environments?
Yes, with the right coating system. For coastal or heavily exposed installations, we recommend PPGL with an enhanced coating and can arrange salt spray testing to confirm performance before bulk production.
Q6. Will the coating survive forming, bending, and stamping?
A correctly specified material will. We verify coating and film adhesion with cross-cut and T-bend testing on every batch. For tight-radius parts, we recommend a sample trial before bulk production.
Q7. Can you match custom AC housing colors?
Yes. We match custom colors to your physical sample, RAL reference, or target unit design, and provide an approval sample before mass production.
Q8. Do you provide OEM support for AC housing projects?
Yes. We support OEM production with custom finishes, coating system selection, sample matching, slitting, cut-to-length processing, protective film, and export packaging.
Related Products for AC Housing Projects
Explore the individual materials behind our AC housing supply. Each links to full specifications and surface options.
PPGL Coil & Sheet
PPGI Coil & Sheet
PCM Steel
Anti-Corrosion Insulation Laminated Steel
Ready to Source Steel for Air Conditioner Housings?
Send us your AC housing application, service environment, target finish, thickness, width, and estimated quantity. Our team will recommend the right material — PCM, PPGI, PPGL, or VCM — based on your surface, forming, corrosion, and cost requirements, and respond within one business day.
- Housing position — indoor cover, outdoor housing, fan cover, side panel, or air deflector
- Machine type — split system, central AC, or commercial / industrial unit
- Material preference — PCM, PPGI, PPGL, VCM, or not sure yet
- Surface requirement — matte white, solid color, weathering-resistant, metallic, or anti-fingerprint
- Color reference — RAL code, sample, or target unit design
- Thickness and width — in millimeters
- Supply form — coil, slit coil, or cut-to-length sheet
- Quantity — in metric tons or sheets, and whether one-time or recurring
- Destination country — for freight and lead time estimation
- Sample or color matching requirement — yes or no