Traffic Road Sign Reflective Aluminum Circle

Core Advantages

• Multi-alloy optional, 1050/1060 for regular road projects, 3003 for coastal high salt-spray anti-corrosion scenarios

• High flatness and uniform thickness tolerance, effectively prevent reflective film bubbling, warping and peeling for long-term outdoor use

• Oil-free and ultra-clean surface, greatly enhance bonding strength with engineering-grade and diamond-grade reflective sheeting

• Optional primer prepainted surface, save customer’s surface treatment process and improve lamination efficiency

• Precision cutting with zero burr edge, easy for crimping, drilling and on-site installation

• Lightweight aluminum material, lower transportation and installation cost compared with steel substrate

• Excellent UV aging resistance and oxidation resistance, keeping stable performance in long-term outdoor exposure

• Custom diameter and thickness available to support large-scale municipal and highway engineering orders

Production Process

Aluminum coil raw material feeding → Multi-cycle degreasing and oil removal cleaning → Non-chromium environmental passivation treatment → Constant temperature drying → Optional primer prepainting and curing → High-precision CNC circular blanking → Edge deburring & rounding treatment → Flatness calibration & surface inspection → Dimension tolerance sampling test → Protective paper interleaving → Stacking arrangement → Dust-proof and moisture-proof export packaging. Each batch undergoes strict flatness, surface cleanliness and edge precision inspection before delivery, ensuring perfect lamination performance for reflective film and long-term outdoor service stability.

Technical Parameters

Application

Traffic facilities: Highway & municipal road circular speed limit and prohibition signs Road safety: Outdoor warning signs, construction site temporary safety signs Public infrastructure: Parking lot, community, park traffic control signs Coastal engineering: Anti-corrosion traffic signage for seaside and high humidity areas

Export Packaging

Aluminum circles separated by anti-scratch protective paper. Whole stack wrapped with moisture-proof PE film and kraft paper. Fastened on IPPC fumigated wooden pallets with strapping tape. Clear shipping marks marked on outside. We can provide fumigation certificate, MTC and test documents for overseas engineering tender and customs clearance.

FAQ

Q1: What is the difference between ordinary aluminum circle and traffic sign type? A: Ordinary aluminum circles have unstable flatness and residual oil on surface, easy to cause reflective film falling off. Our traffic-grade aluminum discs adopt strict surface cleaning and flatness calibration, specially optimized for reflective film lamination outdoor long-term use.

Q2: Do you provide pre-painted primer aluminum circles? A: Yes, primer pre-coated aluminum circles are available, which greatly improves reflective film adhesion and saves customers’ processing steps.

Q3: Which alloy is suitable for coastal road signs? A: 3003 alloy aluminum circle is recommended, with better salt spray and corrosion resistance, suitable for coastal humid and high-salt environment. 1060 is cost-effective for inland ordinary roads.

Q4: Can you support custom size diameter? A: Fully customizable. We can produce non-standard diameter and thickness according to customer sign molds and engineering requirements.