Aluminum jacketing coils are very common in construction and industrial applications, especially those that require excellent thermal insulation and moisture protection. Aluminum jacketing coil with kraft paper or polysurlyn moisture barrier usually add one or more layers of moisture-proof materials, such as kraft paper or Polysurlyn film (a high-performance polymer), to the aluminum coil to enhance its moisture-proof performance, thereby extending its service life and improving the insulation effect.
– Material characteristics
The aluminum jacketing coil surface is composited with imported yellow kraft paper (quantity 80~120g/m²) to enhance the anti-corrosion performance and service life, while absorbing moisture inside the pipeline.
Kraft paper has high tear strength and high temperature resistance (operating temperature above 85℃), and ensures moisture-proof transportation through fumigation-free waterproof packaging.
– Application areas
Mainly used in anti-corrosion and thermal insulation projects such as oil pipelines, chemical plants, and power plants, especially in the Middle East.
Suitable for pipeline insulation outer packaging, with both lightweight (aluminum density 2.71g/cm³) and beautiful effects, and a lifespan of up to 20 years in natural environments.
– Product parameters
Thickness: 0.3~1.0mm (common export thickness 0.5~0.9mm).
Material: 1060, 3003, 5052 and other aluminum alloys.
Width: 1000~1220mm.
Further processing options: embossing, tile pressing.
– Material characteristics
The aluminum jacket coil surface is hot-pressed with Polysurlyn film (polyethylene + surlyn polymer), with a total thickness of 76 microns, and has extremely low water vapor permeability (<1.55g/m²/day) and anti-pinhole performance (in accordance with ASTM C1729 standard).
The film has strong adhesion and remains firm after 24 hours of water immersion. It has excellent weather resistance and is suitable for highly corrosive environments (such as refineries and nuclear power plants).
– Application areas
Aluminum jacket with PSMR is mainly used in thermal insulation and anti-corrosion projects in power plant desulfurization flues, chemical plant pipelines, oil field petrochemicals and other fields, replacing traditional kraft paper aluminum coils with better performance.
It has the characteristics of waterproof, enhanced weather resistance and low flammability.
– Product parameters
Thickness: 0.2~2.0mm (commonly used 0.5~0.9mm).
Material: 1050, 3003, 5052 and other aluminum alloys.
Roll weight: 50~5000 kg/roll, inner diameter 176~505mm.
Customized services: single-sided or double-sided lamination
Core advantages of aluminum jacketing with moisture barrier:
– Long-term moisture-proof
The moisture-proof layer can effectively isolate water vapor and avoid the strength loss and thermal insulation performance degradation of the aluminum jacketing caused by oxidation. Experimental data show that the tensile strength attenuation rate of aluminum coils with Polysurlyn moisture proof layer is 60% lower than that of products without moisture-proof layer in a 95% humidity environment.
– Enhanced corrosion resistance
The moisture-proof layer can block acid, alkali and salt spray erosion and extend the service life of aluminum jacketing rolls. Taking chemical pipelines as an example, the corrosion rate of aluminum jacketing coil with moisture-proof layers is 75% lower than that of ordinary aluminum coils, and the maintenance cost is reduced by 40%.
– Stable thermal insulation performance
The moisture-proof layer can reduce the condensation problem of the thermal insulation layer caused by water vapor intrusion, ensuring the long-term stability of the thermal resistance value of the thermal insulation material (such as rock wool, glass wool). The measured data of a cold chain project showed that the aluminum jacketingcoil with a moisture-proof layer can reduce the heat loss of the thermal insulation layer by 18%.
In the field of aluminum jacketing coil, products with a moisture-proof layer (such as kraft paper or Polysurlyn) are widely used in petrochemical, building insulation, cold chain logistics and other industries due to their excellent moisture-proof, anti-corrosion and thermal insulation properties.