Welcome: Guangdong Aluminum Association Co.,Ltd

Aluminum Surface Finishing

We provide anodizing, powder coating, e-coating, polishing, brushing, sandblasting, chemical conversion coating, and PVDF coating for enhanced durability, corrosion resistance, and aesthetics. Suitable for all aluminum alloys with strict quality control.

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We provide comprehensive aluminum surface treatment services, specializing in enhancing the performance and aesthetics of various aluminum alloy products. With advanced surface treatment equipment, sophisticated processing techniques, and an experienced professional team, we offer one-stop aluminum surface treatment solutions from technical consultation and process design to finished product processing. Our services meet the high standards required by industries such as architectural decoration, automotive manufacturing, electronic equipment, aerospace, and more. Our surface treatment processes not only improve the corrosion resistance, wear resistance, and service life of aluminum products but also provide exceptional decorative effects and special functional properties.

Technical Advantages

Advanced Equipment

Automated Anodizing Line: Equipped with large-scale fully automated anodizing production lines with large tank capacity and strong processing capabilities

High-Precision Electrophoretic Coating Equipment: Utilizing advanced electrophoretic technology to ensure coating uniformity and adhesion

Environmentally Friendly Powder Coating System: Equipped with electrostatic spraying equipment and efficient curing ovens for pollution-free production

Precision Polishing Equipment: Multi-stage polishing systems capable of achieving mirror-like finishes

Automated Control System: Full-process parameter monitoring to ensure stable processing quality

Process Expertise

Anodizing

Conventional Anodizing:

Film thickness range: 5-25μm, customizable according to requirements

Color options: Natural, black, gold, bronze, and many other standard colors

Sealing processes: Hot water sealing, mid-temperature sealing, cold sealing, and more

Corrosion resistance grade: Up to AA25 (according to AAMA 611 standard)

Hard Anodizing:

Film thickness range: 25-100μm

Hardness: 350-500HV, approaching the hardness of some steels

Wear resistance: Excellent, suitable for high-wear environments

Electrical insulation: Breakdown voltage >1000V (50μm film thickness)

Color Anodizing:

Coloring methods: Electrolytic coloring, organic dyeing, integrated coloring

Color range: Dozens of standard and custom colors available

Color fastness: Excellent light and weather resistance

Uniformity: Color difference controlled within ΔE≤1.0

Powder Coating

Standard Powder Coating:

Coating thickness: 60-120μm

Adhesion: Grade 0 (optimal, according to GB/T 9286 standard)

Impact resistance: Above 50kg·cm

Color selection: Customizable according to RAL color chart, thousands of colors available

Fluorocarbon Powder Coating:

Coating thickness: 80-120μm

Weather resistance: Up to 20+ years (in southern exposure environments)

Chemical resistance: Excellent acid and alkali resistance

Application scenarios: High-end building exteriors, coastal environment facilities

Electrophoretic Coating

Cathodic Electrophoresis:

Coating thickness: 15-25μm

Coverage capability: Excellent corner coverage and deep hole penetration

Salt spray resistance: >1000 hours (neutral salt spray test)

Uniformity: Thickness deviation <±2μm

Anodic Electrophoresis:

Coating thickness: 10-20μm

Decorative properties: High gloss, high flatness

Application scenarios: Products with high decorative requirements

Mechanical Surface Treatment

Polishing:

Surface roughness: Down to Ra 0.05μm (mirror effect)

Gloss: Up to 90% or higher

Processing methods: Mechanical polishing, chemical polishing, electropolishing

Brushing:

Pattern types: Straight lines, circular patterns, cross patterns, and more

Pattern precision: Uniform and consistent, without line breaks

Decorative effect: Strong modern feel, suitable for high-end products

Sandblasting:

Surface roughness: Adjustable Ra 1.6-6.3μm

Blasting media: Glass beads, aluminum oxide, walnut shells, and more

Effect: Uniform matte surface with comfortable tactile feel

Chemical Surface Treatment

Chemical Conversion Coating:

Film thickness: 0.5-3μm

Treatment types: Chromate, chrome-free, titanium-zirconium conversion films

Function: Provides temporary corrosion protection, serves as a base layer for coating

Chemical Polishing:

Brightness: Up to 80% or higher

Application scenarios: Complex shapes, internal cavity surface treatment

Uniformity: Uniform treatment across the entire surface, no dead spots

Material Compatibility

Aluminum Alloy Series:

1000 Series: Pure aluminum, excellent surface treatment results

2000 Series: Copper-containing aluminum alloys, requiring special processing techniques

3000 Series: Manganese-containing aluminum alloys, good surface treatment performance

5000 Series: Magnesium-containing aluminum alloys, excellent anodizing results

6000 Series: Magnesium-silicon aluminum alloys, widely used in architectural applications

7000 Series: High-strength aluminum alloys, requiring special processing techniques

Product Forms:

Aluminum Profiles: Surface treatment for various extruded profiles

Aluminum Sheets: Surface treatment for aluminum sheets of various thicknesses

Aluminum Castings: Surface treatment for die-cast parts and gravity cast parts

Aluminum Forgings: Surface treatment for various forged aluminum parts

Complex-Shaped Parts: Surface treatment for CNC machined parts, stamped parts, etc.

Service Content

Technical Consultation

Material Analysis: Recommending optimal surface treatment solutions based on aluminum alloy composition and condition

Functional Requirements Analysis: Selecting processing techniques based on product usage environment and performance requirements

Decorative Effect Design: Providing samples and effect simulations to assist customers in selecting the best appearance

Cost Optimization Advice: Providing the most economical solutions while meeting performance requirements

Process Design

Pretreatment Plan: Designing degreasing, descaling, activation, and other pretreatment processes based on product surface conditions

Main Treatment Process: Designing optimal surface treatment parameters and procedures

Post-Treatment Plan: Designing sealing, protection, and other post-treatment processes as needed

Process Verification: Small-batch testing to verify process feasibility and effects

Production Processing

Small-Batch Processing: Suitable for samples, small-batch production, and customized requirements

Large-Batch Processing: High-efficiency, high-consistency batch production capabilities

Special Requirements Processing: Meeting customized requirements for special colors and special performance

Urgent Order Processing: Providing expedited services to meet customer urgent needs

Quality Testing

Appearance Inspection: Color, gloss, and surface defect inspection

Performance Testing: Film thickness, hardness, adhesion, and corrosion resistance testing

Special Performance Testing: Specific performance testing according to customer requirements

Factory Report: Providing detailed quality inspection reports

Application Fields

Architectural Decoration

Curtain Wall Systems: High weather-resistant surface treatments guaranteeing 20+ years of service life

Door and Window Systems: Surface treatments combining decorative and functional properties

Interior Decoration: High-quality decorative effects meeting designers' creative requirements

Outdoor Facilities: Weather-resistant surface treatments adapting to various climate environments

Automotive Industry

Body Structure Parts: Surface treatments with high corrosion resistance

Engine Components: Heat-resistant and wear-resistant surface treatments

Interior Parts: Highly decorative surface treatments with comfortable tactile feel

Radiator Components: Special surface treatments with high thermal conductivity

Electronics and Communications

Equipment Housings: Surface treatments combining EMI shielding and decorative properties

Heat Dissipation Components: Surface treatments with high heat dissipation efficiency

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