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We are offering wide range of Coils Packaging System to our clients. Aerographic's Packaging System for Coils Steel mills generally pack the CR as well as GI coils/sheets in polythene strips/Hessian cloth. This packing system was known as bandage packing, where the coils are wrapped with packing material of 8â€Â–10†width packing material. This kind of packing has the following drawbacks.
- Though they are overlapped, but still there are huge gaps between the layers. These gaps allow moisture and air to reach the metal surface and cause corrosion.
- Slipping of the layers exposes the metal surface to atmosphere which in turn causes corrosion.
- The packing process is time consuming which increases labor cost.
- The process consumes more packing material which increases budget cost.
- If coils get rusted, the major portion of these steel coils are used in the automobile sector, where rusted sheets, even after the process of sandblasting or removing the rust cannot be used for quality reasons.
Advantages of Aerographic's VCI HDPE HD 115/A Paper
Aerographic's Seaworthy Packaging System developed for packing steel coils overcomes these problems completely. It provides superior protection to the steel coils and ensures that the end user receives the coils in factory fresh condition. The overall packing works out economical over the customary packing.
Aerographic's Seaworthy Packaging System, involves using a single sheet of multi layered VCI chemical treated paper to wrap around the coil, as the primary packing material instead of the normal polythene strips. An outer layer of stretch film or ordinary polythene film can be used which is optional. This is followed by the use of edge guard, strapping, metal foil packing etc depending on the product and the destination.
Technical Specifications
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Kraft Paper
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75 GSM
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HDPE Fabric 10 x 10 mesh
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60 GSM
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LDPE 20 x 20 GSM
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40 GSM
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Total
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175 GSM
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*VCI Coating done on it
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20 GSM
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After Evaporation it finally remains of
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12 GSM
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- Thickness of Material 180 gm +10%
- Layer 1-LDPE Lamination 20 X 20 GSM
- Layer 2-HDPE Fabric 60 GSM – Mesh Size 10x10 mesh
- Layer 3-LDPE Lamination 20 GSM
- Layer 4–VCI Paper 75 GSM
- Coating–20GSM
- Burst Factor of Paper -4.5 kg/sq cm
- Burst Factor of HDPE-12.3 kg/ sq cm
- Tear Factor DIR I-1285
- DIR II-800
- Weight of total uncoated material-170- 180 grams per sq m (High Heavy Duty)
- pH of treated Paper-7.0 +- 1
- Vapour inhibiting humidity chamber test for 120+hours-Pass
- Contact corrosion test in humidity chamber test for 120+ hours-Pass
- Water penetration test for 16 hours-PASS
Salt Spray Report
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Test Method
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ASTM B-117
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Test Solution
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5% Sodium Chloride in DI Water
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PH of Fog Controlled
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6.5-7.2 at 35oC
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Observation After 96 Hours
No red rust, No white rust observed.
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