Aluminum Coil 3003 H14 With PolySurlyn Moisture Barrier

2025-10-11

Aluminum coil 3003 H14 with polysurlyn moisture barrier is a moisture-proof material that combines 3003 H14 aluminum alloy coil with polysurlyn film. It combines the rust- and corrosion-resistant properties of aluminum alloy with the excellent moisture and water resistant properties of polysurlyn film. It is widely used in industrial fields with stringent requirements for moisture, corrosion and weather resistance, such as pipeline insulation, building protection, cold chain transportation and marine engineering.

Structural Design of Aluminum Coil 3003 H14 With PolySurlyn Moisture Barrier:

- Base Material: 3003 H14 Aluminum Alloy
3003 H14 is an Al-Mn-based rust-proof aluminum alloy with medium strength (tensile strength 145-185 MPa), excellent corrosion resistance, and weldability. The H14 temper indicates that the material has been cold-worked and hardened, resulting in excellent formability and deformation resistance, making it suitable for long-term use in complex environments. Its chemical composition contains 1.0-1.5% manganese, which effectively enhances corrosion resistance, making it particularly suitable for corrosive environments such as chemical and marine applications.

- Moisture Barrier: PolySurlyn Film
Developed by DuPont, is primarily composed of ethylene methacrylic acid copolymer (EMAA), which forms a unique "ionomer" structure through ionic crosslinking. Its core properties include:
High Barrier: Its water vapor permeability is extremely low (0.05g/m²·24h), one-quarter that of ordinary aluminum coils. Laboratory testing shows only 5 micropores in 10 moisture-proof points, far exceeding the performance of ordinary materials.
Strong Adhesion: Through a 140°C hot-pressing process, it is tightly bonded to the aluminum coil, resulting in high peel strength, resisting manual tearing and remaining intact even after immersion for 24 hours.
Durable Weathering: Its adhesion remains stable under conditions of thermal aging (e.g., 150°C), acid and alkali corrosion (pH 2-12), and low temperatures of -40°C, making it suitable for use in extreme climates.
Chemical Resistance: It offers excellent corrosion resistance to crude oil and other chemicals, extending the life of the pipeline. Mechanical Properties: Impact and abrasion resistant, and not susceptible to damage during transportation.
Environmental Certifications: Compliant with EU RoHS, US FDA, and SGS standards, it emits no volatile substances and is suitable for food contact and high-end industrial applications.

- Optimized Composite Structure
Some products utilize a triple-layer design: a barrier layer + a moisture-absorbing layer + an adhesive film layer. The first layer is a dense film that blocks moisture, the second layer is a one-way moisture-absorbing film that absorbs residual moisture, and the third layer is a hot-melt adhesive film that ensures long-term adhesion. This structure ensures that the aluminum coil maintains a service life of over 10 years despite the high temperature and humidity of the Middle East.

Common thicknesses range from 0.3mm to 1.0mm, and custom thicknesses are available. Free samples of 0.5mm, 0.6mm, 0.7mm, and 0.8mm thick 3003 H14 aluminum roll with polysurlyn moisture barrier are available for affordable prices and stable quality. Standard width is 1000mm, and custom thicknesses are also available.

Key Advantages of Aluminum Sheet 3003 H14 With PolySurlyn Moisture Barrier:

- Moisture and Corrosion Resistance:
Polysurlyn film's ionic bond structure provides excellent resistance to water vapor penetration. Combined with the natural corrosion resistance of 3003 aluminum alloy, it effectively resists corrosion from salt spray, acid rain, and other factors. For example, in Middle Eastern oil pipeline insulation projects, this material has extended pipeline life by 3-5 times.

- Improved Strength:
The surface hardness of the aluminum coil increases by 30% after lamination, enhancing wear resistance and withstanding the abrasions during transportation and construction.

- Easy Processing:
Polysurlyn film can be laminated to aluminum coils through processes such as rolling and hot pressing without affecting subsequent processing such as stamping and bending. For example, polysurlyn film-coated aluminum coils with a thickness of 0.3-1.5mm can be directly used to manufacture pressure vessel heads.

- High-Temperature and Fire Resistance:
Polysurlyn film can withstand temperatures of 150°C and maintains its adhesion after immersion in hot water (80°C) for 72 hours. Its low oxygen index (LOI) reaches 26%, raising the fire rating of the laminated aluminum coil to B1, making it suitable for high-temperature environments such as power plants and refineries.

Applications of Aluminum Coil 3003 H14 With PolySurlyn Moisture Barrier:

- Pipeline Insulation
Petrochemical Pipelines: aluminum coil with polysurlyn moisture barrier isolate external moisture and chemical corrosion, reducing the corrosion rate of crude oil pipelines by 80%, extending the pipeline's service life by 15-20 years.
Heating Pipelines: Insulation is improved by 30%, heat loss is reduced by 30%, and it can withstand temperatures as high as 150°C, saving 10%-15% in energy consumption.
Cold Storage Pipelines: Suitable for temperatures as low as -25°C, it prevents condensation, maintains internal dryness, and reduces the risk of equipment corrosion.

- Building Protection
Building Curtain Walls: Excellent moisture resistance reduces the risk of mold on walls (the incidence rate is reduced from 15% to 5%).
Roof Waterproofing: With a service life of 20-25 years, twice that of ordinary waterproofing membranes, it reduces the frequency of renovations. Cold Chain Transportation
Cold Chain Vehicle Cargo Lining: Rapidly cools and maintains a low temperature, reducing refrigeration energy consumption by 10%. It is wear-resistant and reduces scratches and damage during transportation (damage rate reduced from 8% to 3%).

- Marine Engineering
Offshore Platform Protection: Salt spray corrosion resistance is 2 times greater than that of ordinary aluminum coils. After a salt spray test (5% NaCl solution, 960 hours), the corrosion area was only 5% (compared to 20% for ordinary aluminum coils), ensuring the long-term safe operation of the platform.
Ship Interior Decoration: It offers excellent fire resistance (flame retardant rating of B1) and is lightweight, reducing ship weight by 5% and lowering fuel consumption (by 5-8 liters per 100 kilometers).

- Other Applications
Electronic Packaging: Shields electromagnetic interference (EMI), with a shielding effectiveness exceeding 40dB, protecting electronic components from external electromagnetic fields. Food packaging: Meets food contact safety standards and offers excellent barrier properties, with an oxygen transmission rate of 5 cm³/(m²·24h·0.1MPa), extending food shelf life by 30%-50%.
Pharmaceutical packaging: Blocks UV rays (UV transmittance less than 0.1%), preventing pharmaceuticals from deteriorating due to light exposure.

3003 H14 aluminum coil with a polysurlyn moisture barrier has become a preferred material for industrial protection due to its excellent overall performance. While 3003 H14 polysurlyn film aluminum coil is 30-50% more expensive than standard aluminum coil, its overall lifetime cost is reduced by over 40%. Over 80% of oil and gas pipelines in the Middle East use aluminum coil with polysurlyn moisture barrier as their outer sheath. Its moisture-proof properties prevent insulation from absorbing moisture and deteriorating, while also protecting against wind and sand abrasion in desert environments.

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