Overview

VCI Resin is an M/B (Master Batch) type of raw material to produce Volatile Corrosion Inhibitor Films. VCI 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-401 : VCI M/B for ferrous metals, silver and copper

- RUSTEC MB-201 : VCI M/B for ferrous and non-ferrous metals (for WRAP)

How to Apply

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) 1 to 3% addition depending on the resin grade

(2) LLDPE : LDPE = 3:1 (recommended)

*Extrusion temp. - Extrusion die temp. : 180-195℃

- Melting screw section : 150-160℃

* If it exceeds 200℃ in extrusion, VCI elements may change in quality. Temperature control is vital.

Instructions

1) As VCI Resin is sensitive to moisture, be sure to keep it from moisture while storing it after use.

2) 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.

3) Avoid using recycled PE resin.

4) 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.

5) 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.

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)