Color Coated Aluminum Strip Coil 1050 3003 H24 0.15mm-1.2mm for Gutter Channel Letter Venetian Blind Slats

Pre-painted aluminium strip coil produced on a continuous coil coating line, then precision slit to the exact width of the downstream forming machine. One coil supply line covers three forming routes - rain gutter roll forming, channel letter bending, and venetian blind slat punching - so a sign maker, gutter fabricator or blind producer can buy all three from one mill and consolidate freight.

0.50-0.80 mm in 3003 H24 or 3105 H24, slit to 100-400 mm, with PE or PVDF coating on both faces. Coating adhesion is tested by T-bend and impact before slitting so the paint survives the roll forming radius on a seamless gutter machine without cracking at the bend. Standard colours are black, brown, white, grey and brick red, matched to RAL.

0.50-1.00 mm in 1050, 1060 or 3003 H24, slit to 30-150 mm for letter return and trim. The strip must hold a tight edge line through the bending and notching machine, so width tolerance is held at +/-0.10 mm and burr height under 0.05 mm. Available in gloss, matte and brushed look, plus mirror finish for face trim.

0.15-0.25 mm in 1050, 1100 or 5052, H18 to H19 temper, slit to 15-50 mm. Thin slat strip needs high tensile with controlled elongation so the slat stays flat after punching and does not sag under its own length. Supplied colour coated or anodized, with the coating flexible enough for the slat to be curved without film cracking.

• PE polyester coating 18-25 micron, interior and general exterior use
• PVDF coating 25 micron, exterior use with 15-20 year colour warranty
• Anodized finish for blind slats and interior trim
• RAL or Pantone colour matching, gloss level from matte 5 GU to high gloss 60 GU
• Protective PE film with or without customer logo print

• Alloy, temper and thickness selected against your forming machine and finished profile.
• Slit width to 15 mm with +/-0.10 mm tolerance; sample strip supplied before mass slitting.
• Colour matched to RAL, Pantone or your physical sample; gloss level to order.
• Coil weight 2.0-5.0 tons, or a fixed band matched to your decoiler.
• Protective film, kraft interleave, customer marks and pallet sizes.

• Free A4 coated samples in your target colour within 3 working days, freight collect.
• T-bend, impact and MEK rub test reports issued with each coating batch.
• Mill Test Certificate, RoHS and REACH declarations, packing list and certificate of origin on request.
• Third-party inspection by SGS, BV or Intertek before loading.
• Colour warranty of 15-20 years on PVDF coated exterior applications.

Coils are eye-to-sky or eye-to-wall on ISPM 15 wooden pallets, wrapped in moisture-barrier film with edge protectors and steel banding; narrow slit coils are packed on a tube core to prevent edge damage in transit. A 20GP carries about 18-20 tons and a 40HQ about 24-26 tons, and gutter, channel letter and blind strip can be consolidated in one container.

Shipment from Qingdao, Shanghai or Tianjin by FCL or LCL, production lead time 15-25 days after order confirmation depending on colour and coating system.