3003-H14 Pre-Painted Aluminum Flashing Coil | 0.019" & 0.024" Gauge for Roofing & Trim

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3003-H14 Pre-Painted Aluminum Flashing Coil | 0.019" & 0.024" Gauge for Roofing & Trim

Material & Alloy: Premium 3003-H14 Grade Aluminum

Available Thicknesses: 0.019" (0.48 mm) & 0.024" (0.61 mm)

Standard Roll Widths: 24" (Standard), 14", 20", or Custom Slitting

Standard Roll Lengths: 50 ft, 100 ft Contractor Rolls, or Custom Jumbo Coils

Coating & Finish: Baked-on Polyester (PE) Coating; Smooth or Stucco Embossed Surface

Available Colors: White, Royal Brown, Black, Commercial Bronze, Charcoal Gray (Double-Sided Options Available)

Sales Model: Wholesale B2B Direct, Custom OEM Manufacturing, Containerized Export

Minimum Order Quantity (MOQ): 2 Metric Tons (or 100 Standard Contractor Rolls)

Packaging: Eye-to-Sky / Eye-to-Wall Wooden Pallets with Moisture-Proof Wrapping

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Product Description

Product Overview

Our 3003-H14 pre-painted aluminum flashing coil is an industrial-grade architectural material engineered specifically for high-performance weatherproofing, roof valley sealing, window capping, and exterior trim fabrication. Manufactured from premium aluminum-manganese alloy with an H14 temper (strain-hardened, half-hard), this product provides an optimal balance of structural yield strength and mechanical ductility.

Designed to meet strict North American building codes and ASTM standards, our pre-painted aluminum coil enables seamless manual brake bending on job sites without risking paint cracking, micro-fracturing, or surface flaking. Whether used for residential waterproofing or commercial architectural cladding, these coils provide exceptional resistance against severe UV radiation, moisture ingress, chemical pollutants, and atmospheric corrosion.

Technical Specifications & Engineering Data

To ensure precise integration into your manufacturing processes or distribution inventory, review the standard metallurgical and mechanical properties listed below:

Technical Parameter	Standard Specification	Testing Protocol / Reference
Base Metal Alloy	3003 Grade Aluminum (Al-Mn Alloy)	ASTM B209 / EN 485
Temper Condition	H14 (Strain Hardened, 1/2 Hard)	ASTM B209
Decimal Thickness	0.019" (0.48 mm) & 0.024" (0.61 mm)	Gauge Tolerance: ±0.01 mm
Standard Coil Widths	24" (610 mm standard), 14", 20" (Custom Slitting Available)	Width Tolerance: ±0.5 mm
Standard Roll Lengths	50 ft (15.24 m), 100 ft (30.48 m) Contractor Rolls	Custom Jumbo Coils available up to 3,000 lbs
Coating Type	Premium Baked-on Polyester (PE) or High-Durability PVDF	Coil Coating Standard (AAMA 2603 / 2604)
Dry Film Thickness (DFT)	Top Coat: 18–22 μm; Primer: 5 μm; Back Coat: 5–8 μm	ASTM D1005
Surface Finish / Texture	Smooth High-Gloss, Semi-Gloss Matte, or Stucco Embossed	Visual & Optical Refectance Inspection
Paint Adhesion (T-Bend)	0T to 2T Bend Test (No Cracking or Flaking)	ASTM D4145
Solvent Resistance	≥100 Double MEK Rubs	ASTM D5402
Salt Spray Resistance	1,000+ Hours Exposure without Blistering	ASTM B117

Key Performance Advantages & Engineering Features

1. Superior Bending Ductility Without Paint Failure

The H14 temper of 3003 aluminum provides a balanced grain structure that permits repeated 90° to 180° manual brake bends during installation. The specialized flexible baked-enamel primer and topcoat expand uniformly with the base metal during cold forming, ensuring zero micro-cracking along seam radii.

2. High Corrosion & Atmospheric Resistance

Unlike galvanized steel, 3003-grade aluminum forms a protective natural oxide film when exposed to moisture. Enhanced with a high-performance thermosetting polyester coating, these coils withstand acidic rain, salt spray coastal conditions, and extreme ambient temperature fluctuations ranging from $-30^\circ\text{C}$ to $+80^\circ\text{C}$ without delamination.

3. Stucco Embossing & Anti-Oil Canning Performance

Available in both smooth and stucco-embossed surface finishes. The stucco-embossed texture significantly alters light reflection to reduce surface glare, hides minor job-site handling scratches, and adds mechanical cross-sectional rigidity to prevent "oil-canning" (visible wave distortions across flat sheet spans).

4. Precision Burr-Free Slitting Edges

Every coil undergoes high-precision rotary shear slitting. Clean, burr-free coil edges protect the rubber feed rollers on portable field brakes, prevent edge-corrosion initiation points, and minimize handling hazards for field installers.

Primary Applications in Building & Construction

Our 3003-H14 pre-painted aluminum coils are used extensively across residential, commercial, and industrial weatherproofing applications:

Roof Valleys & Roof-to-Wall Transitions:

Installed along roof intersections to direct heavy rainwater flow into drainage systems without allowing sub-roof moisture infiltration.

Window & Door Trim Capping:

Custom-formed on-site to cover exterior wooden window brickmoulds, door frames, and fascia boards, eliminating the need for periodic exterior painting.

Chimney & Skylight Flashing:

Folded into step flashing, counter-flashing, or base flashing boots around roof penetrations.

Fascia Board & Soffit Enclosures:

Provides clean architectural lines and long-term protection for roof eaves and exposed timber structures.

Quality Assurance, Packaging & Export Shipping

To prevent transit degradation, white rust, or physical coil distortion during long-distance ocean transport, we strictly enforce heavy-duty export packaging protocols:

Moisture Protection:

Coils are wrapped in heavy-duty waterproof Kraft paper, sealed with a polyethylene vapor barrier film, and packed with active silica desiccants.

Eye-to-Sky / Eye-to-Wall Mounting:

Secured tightly onto wooden pallets treated per ISPM 15 heat-treatment standards.

Core Protection:

Heavy-walled steel cores or reinforced 406 mm / 508 mm (16" / 20") inner diameter paper cores prevent core collapse during handling.

Quality Certification:

Every shipment is accompanied by an official Mill Test Certificate (MTC) detailing chemical composition analysis, mechanical tensile yield values, and paint adhesion test records.