Roll Jacketing on Aluzinc is a flat carbon steel product coated on both sides with an aluminium-zinc alloy.
Roll Jacketing on Aluzinc is a flat carbon steel product coated on both sides with an aluminium-zinc alloy. The coating is composed of 55% aluminium, 43.4% zinc and 1.6% silicon and applied by means of a continuous hot dip galvanizing process. Aluzinc available in a wide range of steel grades: The excellent corrosion resistance of Aluzinc a result of the properties of its two metallic constituents: the barrier effect of the aluminium present on the surface of the coating and the sacrificial protection of zinc. The characteristic spangled silver color of Aluzinc gives it a very attractive appearance. Thanks to a thin transparent layer of aluminium oxide on the top surface of the coating, this appearance is preserved over time.
Aluzinc® offers additional advantages: Good corrosion resistance at high temperatures good abrasion resistance because of its surface hardness excellent thermal and light reflectivity. It can be used as insulation jacketing, ships interior cladding and sound proofing cabins. Due to it’s steel base material, it is suitable for fire hazardous area’s in petrochemical plants.
Available dimensions :
Available in thicknesses ranging from : 0.30mm to 1,5mm.
Standard widths are : 914MM, 1000MM, 1219MM.
Other widths available on special order; minimums may apply.
Types of Moisture barrier :
Moisture Barrier (PSMB) is an engineered three layer coextruded film of polyethylene and DuPont™ Surlyn® polymers with a total film thickness of 3 mils (76 μm).PSMB is heat laminated in the factory to the interior surface of all types of metal jacketing for mechanical insulation to help prevent pitting, crevice, and galvanic corrosion of the interior surface of the metal jacketing and the underlying insulated pipe, tank, or equipment. Conforms to BS 476 : Part 7 : 1997 Surface Spread of Flame Class 1
Polykraft consists of one layer of one mil polyethylene film with a protective layer of 40# virgin kraft paper.The moisture barrier is factory applied by attaching the jacketing by continuous lamination to the full width of the metal. The moisture barrier is used to prevent moisture and corrosives in the insulation from coming into direct contact with the metal jacketing surface and causing galvanic or chemical corrosion.