About Suzhou Keysun Anti-Rust Co., Ltd. - VCI Supplier in China

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.

Product Range and Specialties of Suzhou Keysun Anti-Rust Co., Ltd.

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.

Trade and Export Information - Suzhou Keysun Anti-Rust Co., Ltd.

China is a major exporter of VCI films and related chemicals, with shipments typically directed to automotive OEMs in Europe, metal‑fabrication plants in North America and agricultural equipment producers in Southeast Asia. The products fall under HS Chapter 39 (plastic sheets, film and foil) for VCI film and paper, and HS Chapter 38 (chemical preparations) for resin, power and liquid. Export logistics commonly use 20‑foot or 40‑foot containers, with film and paper packed on pallets and chemicals in drums or IBCs.

Importers usually request REACH registration, a safety data sheet and test reports that confirm VCI emission rate and inhibitor concentration. Certifications such as ISO 9001 quality‑management or ISO 14001 environmental‑management are frequently required by overseas buyers, although the supplier’s own certification status is not disclosed. Standard Incoterms for Chinese exporters include FOB Shanghai and CIF to destination ports in Europe or the United States.

Sourcing from Suzhou Keysun Anti-Rust Co., Ltd. - Buyer Guidance

When sourcing VCI film or paper, buyers should obtain a sample batch and request an emission‑rate test performed according to ISO 15530. For resin, power or liquid, the purchaser should ask for a certificate of analysis showing inhibitor loading, purity of the active ingredient and any residual solvent levels. Confirm that the supplier can provide an up‑to‑date REACH registration number and safety data sheet before placing a bulk order.

Typical minimum order quantities are 5 000 m² for film, 2 000 kg for resin and 1 000 kg for powder or liquid, with lead times of 30‑60 days depending on product form and packaging. Verify packaging details - film on shrink‑wrapped pallets, chemicals in sealed drums - and ensure the chosen Incoterm matches the buyer’s logistics plan.

What VCI product forms are listed by Suzhou Keysun Anti‑Rust?

The supplier lists five VCI products: VCI film, VCI paper, VCI resin, VCI power (powder) and VCI liquid (concentrate). Each form is intended for a different application method, such as surface wrapping, sheet‑based packaging or blending into plastic compounds.

Which HS‑code chapters cover these VCI items?

VCI film and VCI paper are classified under HS Chapter 39 (plastic articles). VCI resin, VCI power and VCI liquid fall under HS Chapter 38, which covers chemical preparations and mixtures.

What key specifications should I verify for VCI film?

Typical specifications include sheet thickness (30‑120 µm), inhibitor emission rate (0.5‑2 mg m‑2 day‑1) and service life (6‑12 months under normal storage). Buyers also check the base polymer type, usually polyethylene or polypropylene.

What documentation is normally required before importing VCI chemicals from China?

Importers generally request a REACH registration number, a safety data sheet (SDS), a certificate of analysis showing inhibitor loading, and test reports that confirm emission or corrosion‑inhibition performance according to ISO 15530 or ASTM G1.

How are VCI film and liquid typically packaged for export?

VCI film is usually wound on rolls, shrink‑wrapped and stacked on wooden pallets. VCI liquid and powder are commonly packed in sealed steel drums or intermediate bulk containers (IBCs) to prevent leakage and contamination.

Which regions most frequently import Chinese VCI products?

The main importing regions are Europe (especially Germany and the UK), North America (United States and Canada) and Southeast Asia (Thailand, Vietnam and Malaysia), where automotive, metal‑fabrication and agricultural sectors drive demand.

What are common lead times and minimum order quantities for these products?

Lead times range from 30 to 60 days depending on product form and packaging. Minimum order quantities are typically 5 000 m² for film, 2 000 kg for resin and 1 000 kg for powder or liquid, though exact figures should be confirmed with the supplier.