Copper Front Door is an entrance door made mainly of pure copper or copper alloy. Copper has become an important material for high-end products due to its natural metallic texture, corrosion resistance, and plasticity. The surface of the copper door can present a unique oxidized color, forming a natural patina over time, endowing the building with enduring artistic value. As the core element of the building facade, copper doors not only carry protective functions, but also convey the aesthetic taste and cultural heritage of residents through the integration of materials and craftsmanship. Compared to other metal doors, copper doors perform better in terms of oxidation resistance, corrosion resistance, and environmental friendliness, especially suitable for space scenes that pursue eternal texture and craftsmanship aesthetics.

1. Material and craftsmanship: Ultimate copper craftsmanship and structural strength

The copper front door body is made of 99.9% high-purity electrolytic copper material, which is formed through vacuum melting and multiple rolling processes. The copper material density reaches 8.96g/cm ³, far exceeding ordinary copper alloys (8.5-8.8g/cm ³), endowing the door body with excellent impact resistance and corrosion resistance. The thickness of the door leaf is precisely controlled between 80-100mm (industry average 60-70mm), with a double-layer steel frame structure embedded inside. The seamless combination of copper and steel core is achieved through laser welding technology, with an overall load-bearing capacity of 800kg, which can withstand strong wind impact of level 12. The copper flower pieces are cast using the lost wax method and hand chiseling process. The depth of the single pattern carving is up to 1.5mm, and the line accuracy error is ≤ 0.05mm. The surface is polished with 240 grit sandpaper and then subjected to the ancient gold plating process, presenting a matte texture and delicate texture.

2. Design elements: integration of classical aesthetics and modern functionality

The top of the Crown Head Gate is inspired by Baroque style, with a height of 35cm. The top relief adopts three-dimensional hollow craftsmanship, and the weight is optimized to 18kg (traditional solid design is about 35kg), which retains decoration and reduces structural burden. The width of the Roman column frame is 12cm, the depth of the column groove is 2mm, and the spacing is 1.5cm. Millimeter level accuracy is achieved through CNC engraving, and the surface of the column is treated with aging to simulate the natural traces of a hundred years of weathering. The transparent glass pane adopts double-layer hollow tempered glass (8mm+12A+8mm), embedded with customized copper flower grids, with a light transmittance of 75% and a UV blocking rate of 99%. The glass edge is embedded with 3mm thick copper edging to prevent water vapor penetration.

3. Size customization: flexible adaptation to diverse spaces

The standard size of Copper Front Door is 18502750mm, covering 80% of residential needs and supporting non-standard customization. It can be expanded up to 24004000mm (width * height) and can weigh up to 500kg per door. The door frame is reserved with a 5mm adjustment slot, which is compatible with a wall error of ± 3cm. During installation, three-dimensional fine-tuning can be achieved through eccentric bolts. The door leaf thickness of 100mm version is equipped with a built-in sound insulation cotton layer, with a sound insulation coefficient of 42dB, which is 30% higher than ordinary doors and suitable for street facing or noisy environments.

4. Opening and closing system: dual guarantee of safety and silence

The mechanical lock adopts the German MUL-T-LOCK anti pry technology, with a lock core grade of C (certified by the Ministry of Public Security), equipped with 8 sets of irregular ball and anti drilling plates, and the anti technology opening time exceeds 270 minutes. The hinge offers two options: exposed (bearing capacity of 150kg) and concealed (bearing capacity of 200kg). The concealed hinge is equipped with stainless steel bearings and has a 180 ° opening and closing angle. After 100000 fatigue tests, it has no looseness. The silent design ensures that the noise level is below 40 decibels (national standard requirement ≤ 60 decibels). Add a dust-proof sealing sleeve at the door shaft to extend its service life to over 15 years.

5. Color scheme: personalized customization and lasting aesthetics

Copper Front Door offers 6 standard colors including antique bronze, bronze, oxide black, champagne gold, etc., and supports customization of any color on the RAL color card. The surface adopts nano ion coating technology to form a dense oxide layer with a thickness of 5 μ m, and the color fastness reaches ISO 105-B04 standard level 8 or above. The weather resistance test shows that after 10 years of outdoor exposure, the color difference Δ E ≤ 3 (the threshold for color difference recognizable by the human eye is Δ E ≥ 5). Customized color samples are compared using a spectral analyzer to ensure a color matching degree of over 95% with building facade materials such as stone and paint.

6. Energy saving performance: green technology and comfortable experience

Double layered insulated glass with a U value of ≤ 1.8W/(m ² · K) improves the overall insulation performance of the door by 40% compared to ordinary doors. It can reduce heat loss by 30% in winter and reduce air conditioning energy consumption by 25% in summer. The glass partition layer is filled with argon gas, and its airtightness meets the national standard level 6, effectively blocking cold and hot conduction. EPDM EPDM sealant strip is embedded in the door frame, the compression deformation rate is 30% -50%, the water tightness reaches 350Pa (national standard 150Pa), and there is no leakage risk in rainstorm weather.

7. Protection level: all-weather durability

The surface of the copper material is passivated to form a 0.02mm thick oxide film, with a salt spray resistance test of up to 2000 hours (1000 hours according to the national standard), and a service life of over 20 years in coastal areas. The glass adopts an explosion-proof interlayer design, and even if the fragments are broken, they still adhere to the middle PVB film, with an impact strength of 1000J/m ². The lock and hinge have passed IP54 protection certification, with excellent dust and water resistance performance, and can still operate normally in extreme environments.

8. Installation adaptation: precision and efficiency

The Copper Front Door frame adopts a modular design, with reserved 5mm adjustment slots and eccentric adjustment holes, which can absorb wall ± 3cm errors and increase installation efficiency by 50%. Provide a 3D positioning template, with laser marking accuracy of ± 0.5mm, ensuring uniform gap between the door leaf and door frame (standard gap 2-3mm). The depth of the buried box can be adjusted by ± 10mm, suitable for different thicknesses of ground paving (such as tiles, marble). After installation, the verticality error of the door body is ≤ 1mm/m, and the smoothness of opening and closing meets the national standard grade A.

1. High end residential properties:

In high-end residences such as villas and estates, this European style copper door has become the visual focal point of the building facade with its magnificent size (customizable up to 2400 * 4000mm) and exquisite craftsmanship. The classical elements of the crown head and Roman column frame perfectly complement the natural stone facade and carved columns, enhancing the overall artistic style of the building. The transparent glass pane not only introduces natural light, but also creates a hazy beauty of light and shadow interweaving through the obstruction of copper flower grids, ensuring indoor privacy.

2. Commercial space:

The hotel lobby, high-end clubs and other commercial places adopt a double door design, conveying a sense of solemnity and majesty through the standard size of 1850 * 2750mm and the heavy door body of 80-100mm. The groove details of the Roman column frame and the gilded craftsmanship of the crown top create rich layers of light and shadow under the illumination of light, enhancing the sense of ritual in the space. For example, at the entrance of a five-star hotel, copper doors, crystal chandeliers, and marble floors together create a luxurious welcoming scene.

3. Cultural architecture:

Museums, art galleries, and other cultural venues can customize door patterns by incorporating regional cultural symbols (such as Dunhuang Flying Apsaras and bronze ware Taotie patterns) into copper floral carvings, making copper doors an important chapter in architectural storytelling. The sound insulation performance of double-layer insulated glass (42dB) effectively isolates external noise, creating an immersive artistic experience space for visitors.

4. Public buildings:

Government buildings, corporate headquarters, and other public buildings strengthen their identity by customizing copper door patterns (such as city flowers and corporate spirit totems). Design copper floral patterns, with transparent glass embedded with LED light strips, presenting a flowing light and shadow effect at night, symbolizing the innovative genes of the enterprise. The door has a height of 3000mm and is equipped with an automatic sensing opening system, showcasing an efficient and user-friendly corporate image.

1. Daily cleaning:

Frequency and method: Use a dry microfiber soft cloth (such as eyeglass cloth) to gently wipe the surface along the copper texture direction every week to remove floating dust and fingerprints. Stubborn stains can be wiped with a soft cloth soaked in neutral detergent (pH 6-8, such as diluted baby shower gel) to prevent acidic or alkaline substances from corroding the oxide layer.

Tool selection: Do not use steel wire balls, hard brushes, or cleaning agents containing abrasive particles to prevent scratching the surface of copper materials. For details such as Roman pillar grooves, a soft bristled toothbrush or micro vacuum cleaner can be used to clean them.

Attention: After cleaning, use a dry cloth to thoroughly dry to prevent uneven copper green caused by residual water stains.

2. Oxide layer protection:

Natural oxidation: The natural oxidation layer (patina) formed on the surface of copper doors has a protective effect and does not require frequent intervention. If you need to accelerate the oxidation effect, you can apply a special copper wax (such as Renaissance Wax) after cleaning, let it stand for 10 minutes, and then wipe it clean with a soft cloth to form a matte protective film.

Artificial intervention: For areas with excessive or uneven oxidation, a microfiber cloth dipped in copper cleaner can be used to gently wipe. After restoring luster, it should be immediately rinsed with water and wiped dry.

Environmental control: Avoid long-term exposure of copper doors to humid, high sulfur, or highly corrosive gas environments (such as near chemical factories). If unavoidable, it is recommended to spray the edges of the door with silicone sealant every month to block pollutants.

3. Hardware maintenance:

Hinge maintenance: Drip 1-2 drops of specialized lubricating oil (such as WD-40 precision electrical lubricant) into the moving parts of the hinge every month, and open and close the door several times to evenly distribute the lubricant. If the hinge is loose, contact a professional to adjust it and do not disassemble it by yourself.

Lock maintenance: Regularly check whether the lock cylinder is smooth. When the resistance to key insertion and removal is too high, a small amount of graphite powder (oil lubricant is prohibited) can be sprayed and repeatedly inserted and removed. Wipe the pins and lock tongues of the mechanical lock with a soft cloth every six months to prevent dust accumulation.

Rust prevention treatment: Locks and hinges exposed to the outdoors should be coated with rust proof paint (such as zinc yellow epoxy ester primer) every two years, with a coating thickness controlled at 30-50 μ m to avoid affecting the appearance of the door.

4. Glass maintenance:

Cleaning technique: After spraying glass cleaner on translucent glass, use a rubber scraper to wipe it in one direction to prevent water stains from remaining. For stubborn stains, use a non-woven fabric soaked in 75% alcohol to gently wipe to avoid scratching the glass surface.

Sealing inspection: Check the sealing strip at the joint between the glass and copper frame quarterly for cracking or aging, and replace it immediately if any problems are found. When replacing, use EPDM rubber strips with a compression deformation rate controlled between 30% and 50%.

Explosion proof maintenance: If there are cracks in the glass, even if it is not broken, it needs to be replaced immediately to prevent temperature differences from causing bursting. When replacing, it should be operated by professionals to ensure that the interlayer PVB film is tightly adhered to the copper frame.

5. Scratch repair:

Minor scratches: Use ultra-fine sandpaper (with a grit of 2000 or more) dipped in water to lightly polish the scratch area, ensuring that the direction is consistent with the texture of the copper material. After repair, apply copper wax for maintenance.

Moderate scratches: Contact the manufacturer to purchase specialized copper repair paste (including nano copper powder), fill the scratches and polish them. After repair, it should be left to stand for 24 hours to avoid touching.

Deep scratch: If the scratch penetrates the oxide layer and touches the copper substrate, professional personnel need to weld and fill the copper material, re polish and perform oxidation treatment.