VCI RESIN (VCI MASTER BATCH)
Overview of RUSTEC VCI Resin
● Overview
▶ VCI Resin is an M/B (Master Batch) type of raw material to produce Volatile Corrosion Inhibitor Films.
▶ VC Films are produced by combining LDPE or LLDPE resin with VCI Resin at a certain ratio and extruding them.
● Product Type
▶ RUSTEC MB-102 : VCI M/B for ferrous and non-ferrous metals
▶ RUSTEC MB-201 : VCI M/B for ferrous and non-ferrous metals (for WRAP)
▶ RUSTEC MB-401 : VCI M/B for ferrous metals, silver and copper
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● How to Apply RUSTEC VCI Resin
- The process of producing VCI Films is to combine LDPE or LLDPE resin with VCI Resin at a certain ratio and extrude them, which is similar to the process of common vinyl extrusion
▶ Combination ratio
- 1 to 3% addition depending on the resin grade
- LLDPE : LDPE = 3:1 (recommended)
▶ Extrusion Temp
- Extrusion die temp.: 180-1950
- Melting screw section : 150-160C
* If it exceeds 200℃ in extrusion, VCI elements may change in quality. Temperature control is vital.
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● Standards and Instructions for RUSTEC VCI Resin
▶ Instructions
- As VCI Resin is sensitive to moisture, be sure to keep it from moisture while storing it after use.
- Bubbles are sometimes formed inside a film in the production process for the following reasons:
1)moisture is absorbed in PE resin.
2) It exceeds 200℃ in film production. In this case, attention must be paid since the performance and properties of the film might be degraded.
- Avoid using recycled PE resin.
- While various colors may be applied to the resin, avoid colors of high acidity.
Pigments or PE resin that is not neutralized may degrade the performance of VCI.
- When VCI Resin, PE resin, and COLOR resin are combined, the size of resin may be different depending on each resin's type. Be sure that they are distributed evenly.
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▶ Packing and Storage
- Unit of Packing : 25kg (aluminum bag, fiber drum)
- Avoid direct sunlight and humidity. Seal the package before storage.
▶ Corrosion inhibitor period
- 1 year or longer (effective period of produced VCI Films)