About Suzhou Keysun Packaging Co., Ltd - Masterbatch Supplier in China

Suzhou Keysun Packaging Co., Ltd operates in Suzhou, China and currently lists five active products. The catalogue covers volatile corrosion inhibitor (VCI) solutions across four top categories: Masterbatch, Industrial Sheets, Corrosion Inhibitor and Plastic Foil. Each product appears under the VCI label - VCI Masterbatch, VCI Paper, VCI Powder, VCI master batch and VCI Film - reflecting the company’s focus on chemical additives and protective packaging materials. The product list aligns with HS‑code chapter 38 (chemical products) that is commonly used for VCI chemicals and related polymer blends. The supplier is classified as an imported tier “harbor” within the platform’s trust hierarchy.

The VCI Masterbatch and VCI master batch entries refer to the same polymer‑based additive, typically supplied in granule or pellet form for extrusion. VCI Powder is a fine crystalline additive used for bulk coating or blending, while VCI Paper and VCI Film are sheet‑type products that incorporate the inhibitor into cellulose or polymer films. All five items are positioned for metal protection applications such as automotive parts, hardware and construction fasteners. The catalogue does not provide specific HS numbers for each line item, so the description remains within the broader chemical product classification.

Product Range and Specialties of Suzhou Keysun Packaging Co., Ltd

The catalogue’s VCI Masterbatch products are polymer concentrates that usually contain 2 % - 5 % active corrosion inhibitor by weight, compatible with polypropylene, polyethylene or polyester matrices. In the broader industry, masterbatch grades are graded by inhibitor loading, melt flow index of the base polymer, and thermal stability, with typical melt flow indices ranging from 2 to 30 g/10 min. VCI Powder is supplied as a crystalline salt, often meeting purity levels of 98 % - 99 % and particle sizes between 50 µm and 200 µm, suitable for blending into resins or for direct application on metal surfaces. VCI Paper and VCI Film are sheet products; standard industry specifications include thicknesses of 30 µm - 120 µm for film and grammage of 70 gsm - 150 gsm for paper, with inhibitor loadings of 0.5 % - 3 % by weight. These grades meet typical automotive and industrial corrosion‑prevention standards, such as ASTM G48 for corrosion testing.

Industrial sheet and plastic foil categories, although not detailed in the catalogue, generally follow ISO 9001 quality management and may be produced in standard roll sizes of 1 m × 100 m for film and 1 m × 50 m for sheet, packaged in shrink‑wrapped bundles for export.

Trade and Export Information - Suzhou Keysun Packaging Co., Ltd

Exporters of VCI chemicals from China frequently ship to Southeast Asian automotive hubs, European machinery manufacturers and North American construction‑material distributors. The HS‑code 3820 90 covers “other chemical products” and is the customary tariff line for VCI masterbatches and powders. Buyers usually request REACH registration, a Safety Data Sheet (SDS) and, where applicable, ISO 9001 certification to verify consistent production quality. Typical packaging for bulk VCI powder is 25 kg drums or 1 ton bulk bags, while masterbatch granules are packed in 500 kg polypropylene bags. Film and paper products are often supplied on pallets wrapped in polyethylene film, fitting within a 20‑foot container (approx. 20 m³) or a 40‑foot container for larger orders. Common Incoterms for these goods are FOB Shanghai or CIF destination port, with freight forwarding handling the transition from inland rail or truck to sea vessel.

China’s chemical export framework requires customs inspection of HS‑code 3820 shipments, including verification of SDS and any required import permits from the destination country. Suppliers targeting the EU market typically align with the EU‑CE mark for chemical safety, while North American buyers often require compliance with TSCA (Toxic Substances Control Act) reporting.

Sourcing from Suzhou Keysun Packaging Co., Ltd - Buyer Guidance

When sourcing VCI masterbatch or powder from Suzhou Keysun, buyers should request a current SDS, a technical data sheet that lists inhibitor concentration, polymer melt flow index, and thermal stability range. Confirmation of REACH registration and any applicable ISO certifications helps validate compliance with European or global regulations. Sample requests are usually fulfilled in 1 kg batches for powder or 5 kg bags for masterbatch, allowing laboratory testing for corrosion resistance per ASTM G48 or ISO 2081.

Buyers should verify packaging integrity - drums must be sealed with tamper‑evident caps and film rolls should be shrink‑wrapped to prevent moisture ingress. Lead times for VCI masterbatch and powder typically range from 30 to 45 days after order confirmation, while sheet and film products may require 45 to 60 days due to additional coating steps. Minimum order quantities often start at 500 kg for bulk powder and 1 ton for masterbatch, with smaller trial quantities available on request.

What types of VCI products does Suzhou Keysun list in its catalogue?

The catalogue includes VCI Masterbatch, VCI Paper, VCI Powder, VCI master batch (a duplicate naming of the masterbatch) and VCI Film, covering both polymer‑based concentrates and sheet‑type protective materials.

Which HS‑code family is typically applied to VCI masterbatch and powder?

VCI chemicals are generally classified under HS chapter 38, specifically code 3820 90 for “other chemical products,” which is the standard tariff line for these additives.

What quality documents should a buyer request before purchasing?

Buyers should ask for a Safety Data Sheet (SDS), a technical data sheet with inhibitor loading and polymer specifications, REACH registration evidence and any ISO 9001 or similar quality‑management certificates the supplier holds.

Are sample sizes available for testing VCI products?

Typical samples are 1 kg of VCI powder or 5 kg of masterbatch granules; VCI film and paper can be supplied in a single roll of 1 m × 10 m for laboratory evaluation.

What are the usual minimum order quantities (MOQ) for these products?

MOQs are commonly 500 kg for VCI powder, 1 ton for masterbatch, and a single pallet (approximately 20 rolls) for VCI film or paper, though trial quantities may be negotiated.

What packaging formats are used for export?

VCI powder is shipped in 25 kg steel drums or 1 ton bulk bags, masterbatch in 500 kg polypropylene bags, and film or paper on shrink‑wrapped pallets that fit standard 20‑foot or 40‑foot containers.

Which certifications are typically required for VCI products exported from China?

Importers often require REACH registration, an SDS, and may request ISO 9001 quality‑management certification; for EU destinations, CE marking for chemical safety is also common.

What lead time should a buyer expect for an order of VCI masterbatch?

Lead times usually range from 30 to 45 days after order confirmation, depending on production scheduling and any required custom packaging specifications.