Suzhou Keysun Anti-Rust Co., Ltd.

Suzhou, China hosts Suzhou Keysun Anti‑Rust Co., Ltd., which currently lists five active VCI‑related products. The catalogue comprises VCI film, VCI paper, VCI resin, VCI power and VCI liquid. These items fall under the broader categories of Agriculture, Plastic Foil and Masterbatch as indicated in the supplier profile. The VCI film and foil are supplied as polyethylene‑based sheets, while the resin, power and liquid are concentrated forms intended for blending. All five products are identified as volatile corrosion inhibitor solutions for metal preservation.

The company's focus on VCI technology aligns with common industry applications such as protecting agricultural machinery, packaging of steel components, and incorporation into masterbatch formulations for downstream plastic processing. Typical specifications include inhibitor loading rates of 0.1‑0.5 % by weight for resin, emission rates of 0.5‑2 mg m‑2 day‑1 for film, and a service life of 6‑12 months under standard storage conditions. Buyers often request compliance documentation for REACH and safety data sheets. The product range does not list any certifications held by the supplier, so purchasers should verify conformity with relevant standards before contract.

The catalogue lists VCI film (polyethylene or polypropylene sheet), VCI paper (cellulose base impregnated with inhibitor), VCI resin (solid polymer matrix for extrusion), VCI power (powdered form for blending) and VCI liquid (solvent‑based concentrate). In the plastics sector, VCI film is typically offered in thicknesses from 30 µm to 120 µm and packaged in rolls up to 1 000 m. VCI paper is supplied in standard A4 sheets or bulk rolls, with inhibitor content expressed in mg kg‑1. VCI resin and power are graded by inhibitor loading, commonly 0.2‑0.8 % for resin and 0.5‑2 % for power.

Industry references such as ISO 15530 for corrosion‑protection performance and ASTM G1 for corrosion‑rate measurement are frequently applied to VCI products. Masterbatch users usually require the VCI additive to be compatible with PVC, PE or PP matrices and to meet melt‑flow‑index ranges of 5‑30 g/10 min. Agricultural equipment manufacturers often specify a minimum emission rate of 1 mg m‑2 day‑1 to ensure adequate protection during seasonal storage.