Low Temperature Bending Flexible Aluminum Sheet

Core Advantages

1. Ultra-flexible low-temperature resistant paint film

   Special high-ductility resin is added to PE coating, passing -10℃ 180° tight bending test without paint cracking, completely solving the winter processing paint burst defect of ordinary aluminum sheets.

2. Stable low-temperature aluminum substrate

   Homogenized H24/H26 alloy eliminates internal stress, the substrate will not harden and become brittle in cold environment, matching flexible coating for integrated cold forming performance.

3. Excellent deep drawing & tight bending performance

   Suitable for complex deep drawing, edge curling and small-radius bending; no paint peeling at bending creases, greatly improving finished product yield for tile and cookware factories.

4. Reliable anti-corrosion performance for cold humid areas

   Dense PE coating resists frost, snow, moisture and mild acid-alkali erosion, effectively preventing substrate rust in cold and wet northern environments for long-term outdoor use.

5. Uniform smooth surface with low color difference

   Two-coating two-baking roller coating technology ensures particle-free, pinhole-free paint film; small color difference for large-area splicing roof and wall panels.

6. Full customizable specifications & colors

   Sheet thickness 0.3–2.5mm, standard widths 600–2650mm, arbitrary fixed length cutting; all standard RAL matte, semi-gloss and metallic colors available.

7. Full surface anti-scratch protective film

   Transparent PE film covers the whole decorative surface to avoid scratches, dust and fingerprints during cold storage, transportation and low-temperature processing.

8. Compatible with all common processing equipment

   Directly applicable to cutting machines, bending machines, tile forming presses and deep drawing machines without adjusting production parameters, no extra processing cost.

Production Process

Aluminum flat blank feeding → Multi-cycle degreasing & surface cleaning → Non-chromium environmental passivation → Constant temperature hot air drying → Flexible cold-resistant PE primer roller coating & curing → Ultra-flexible top coat coating & secondary baking → Natural cooling → Anti-scratch protective film lamination → Fixed-length cross cutting → Low-temperature bending simulation sampling test → Coating thickness & color difference inspection → Full surface defect screening → Moisture-proof packaging

Each batch of finished sheets will undergo simulated low-temperature bending test before delivery to guarantee stable cold forming performance.

Standard Technical Parameters

Main Application Fields

1. Cold region building engineering: Northern metal roof tile sheets, snowfield workshop enclosure panels, cold area exterior wall decorative plates

2. Cookware manufacturing: Deep drawing aluminum blanks for frying pans, baking trays, composite pot inner liners

3. Mechanical & electrical equipment: Outdoor agricultural machinery shell panels, cold-region power distribution cabinet face sheets

4. Seasonal processing factories: Manufacturers without constant-temperature workshop, seasonal batch production of decorative metal parts

5. Prefabricated buildings: Mobile cold storage wall panels, prefab house roof and wall aluminum flat sheets

Export Packaging Standard

Each low-temperature bending flexible aluminum sheet is separated by soft anti-scratch paper between layers, fully covered with transparent protective film. The whole stack is wrapped with multi-layer frost-proof PE film and thick neutral kraft paper to prevent frost and moisture damage during long-distance cold-region transportation. The sheet stack is firmly fixed on fumigated wooden pallets with high-strength steel belts to avoid collision and deformation in bumpy cold logistics. Clear shipping marks are printed outside including alloy grade, thickness, width, length, cold-resistant coating type, color code, net weight, gross weight and batch number. Complete fumigation certificate, MTC, low-temperature flexibility test report and full customs clearance documents can be provided for overseas cold-region project inspection. Narrow slit small-size sheets are packed into independent sealed cartons for separate protection.

Inspection & After-sales Service

Seven strict pre-shipment inspection procedures are carried out: coating thickness detection, color difference comparison, cross-cut adhesion test, low-temperature bending simulation test, neutral salt spray test, flatness inspection and full surface defect screening. Complete supporting documents including Mill Test Certificate, low-temperature flexibility test report, RoHS certificate, commercial invoice and packing list can be supplied for factory audit and customs clearance. Our technical team provides free forming parameter guidance for low-temperature bending and deep drawing production at any time. If paint cracking, coating peeling or surface defects are confirmed within 7 working days after receiving goods, we will reply within 24 hours and provide targeted solutions including re-production, supplementary shipment or reasonable compensation.

FAQ

Q1: What is the core difference from ordinary PE coated aluminum sheet?

A: Conventional PE aluminum sheets will crack when bent below 0℃; this product adopts ultra-flexible modified paint, which can pass 180° tight bending at -10℃ without paint burst, specially developed for cold climate winter processing.

Q2: Can this sheet be stamped into frying pans and baking trays?

A: Yes, the high stretchable paint film and stable aluminum substrate perfectly fit deep drawing forming of various cookware blanks.

Q3: Can we customize special cold-resistant colors for northern construction projects?

A: We support all RAL color customization, and we can adjust coating flexibility formula according to the local minimum temperature of customers to match different cold zone requirements.

Q4: Is it suitable for long-term outdoor use in cold and humid northern areas?

A: The dense PE coating has good moisture and frost resistance, which can effectively resist snow, frost and air oxidation for long-term outdoor service in cold regions.

Q5: What test reports can you provide for overseas buyers’ audit?

A: We can supply MTC, low-temperature bending performance test report, RoHS certificate, salt spray resistance report and complete export customs clearance documents.