Wax paper alternative protecting metal corrosion

5th September 2016
Source: Cortec
Posted By : Anna Flockett
Wax paper alternative protecting metal corrosion

A Super Barrier version of Cortec’s EcoShield VpCI-144 paper has been developed for protecting metal parts from corrosion. Combining the corrosion protection of VpCI paper coating with a high gloss water-based barrier coating, the EcoShield VpCI-144 Super Barrier is preventative of moisture from reaching metal parts wrapped inside the paper.

The enhanced moisture barrier of EcoShield VpCI-144 Super Barrier is an excellent environmentally friendly alternative to polyethylene and waxed papers.

Under recent ASTM E-96 testing, EcoShield VpCI-144 Super Barrier exhibited a Water Vapor Transfer Rate (WVTR) highly comparable to that of polycoated paper.

Past testing has also shown EcoShield VpCI-144 Super Barrier to rival the moisture barrier properties of polycoated paper and commercial waxed paper. This is an important advantage since poly and wax coatings are not recyclable through normal channels and therefore create an environmental problem. In contrast, EcoShield VpCI-144 Super Barrier paper is environmentally safe and fully recyclable/repulpable into other types of paper products such as boxes, cardboard, and other corrugated materials.

EcoShield VpCI-144 Super Barrier, the premium moisture barrier corrosion inhibiting paper in the industry, combines corrosion protection, moisture barrier properties, and oil and grease resistivity into one material to protect both ferrous and non-ferrous metals. This eliminates the need to inventory multiple types of papers for different types of metal.

Protected metals include:

  • Carbon Steel
  • Stainless Steel
  • Galvanized Steel
  • Cast Iron
  • Aluminum Alloys
  • Copper
  • Brass (≤30% Zn)
  • Solder

VpCIs on the inside face of the EcoShield VpCI-144 Super Barrier paper vaporise and condense on metal surfaces to form a thin protective film that doesn’t influence physical properties of most sensitive electrical and electronic components, including conductivity and resistivity. The protective film does not need to be removed prior to further surface finishing or coating application, and protected parts can be painted, welded, or soldered.

EcoShield VpCI-144 Super Barrier is useful in a variety of different applications:

  • Metal production: coils, wire reels, plate, bar, etc.
  • Metal forging and die casting: raw and machined forgings and castings
  • Metalworking: stamping, sheet metal work, springs, bearings, fasteners, tubes, pipes, jewelry, silverware, etc.
  • Finished products: engines, machinery, equipment, tools, hardware, appliances, instruments, motors, etc.
  • Electrical and electronic products: components, controls, printed circuit boards, etc.

EcoShield VpCI-144 Super Barrier eliminates the package contamination found with other competing VCI/VPI papers because it is made from the highest quality neutral natural kraft paper without the use of chlorine or other bleaching chemicals. It contains no nitrites, phosphates, silicones, chromates, other heavy metals, or toxic products.

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