About Suzhou Sinkery Electronic Technology Co. Ltd. - Foams Supplier in China

Suzhou Sinkery Electronic Technology Co. Ltd. is based in Suzhou, China and currently lists six active products. The catalogue is organised under the broader categories of Foams and Agriculture, with the six items all relating to polymer foam or a related accessory. The product titles include an ESD PU sponge anti‑static foam, a colourful heat‑resistant silicone rubber foam, an ESD black EVA conductive foam, a heat‑resistant PE XPE foam, a standard heat‑resistant silicone rubber foam, and RFID‑blocking sleeves for cards.

The listed items cover a spectrum of engineered foams used for static dissipation, thermal insulation and mechanical cushioning, plus a specialised RFID shielding accessory. Each product is identified by its material family - polyurethane (PU), silicone rubber, expanded polyethylene (PE) XPE, ethylene‑vinyl acetate (EVA) and a composite RFID‑blocking fabric - and is positioned for applications such as electronics packaging, automotive components, industrial insulation and data‑card protection.

Product Range and Specialties of Suzhou Sinkery Electronic Technology Co. Ltd.

The foams in the catalogue correspond to common industry grades. ESD PU sponge typically has a density of 30‑60 kg m‑3 and a volume resistivity below 10⁶ Ω·cm, meeting IEC 61340‑5‑1 standards for static control. Heat‑resistant silicone rubber foams are usually closed‑cell, with operating temperature ranges from - 50 °C to 250 °C and flame performance classified under UL 94 V‑0 or V‑1. PE XPE foams are expanded polyethylene with closed cells, densities of 25‑45 kg m‑3 and compression set below 5 % after 24 h at 80 °C. Conductive EVA foams are formulated to achieve surface resistivity below 10⁴ Ω·sq, suitable for EMI shielding. The RFID‑blocking sleeves are made from a layered conductive fabric that attenuates 13.56 MHz signals to meet ISO/IEC 14443 security levels. Typical product specifications include sheet thickness from 0.5 mm to 5 mm, bulk packaging in 25 kg bags or palletised rolls, and moisture content below 0.5 % for polymer stability.

Trade and Export Information - Suzhou Sinkery Electronic Technology Co. Ltd.

China is a leading exporter of polymer foams, supplying electronics manufacturers in North America, automotive assemblers in Europe and consumer‑goods producers in Southeast Asia. Foams in HS Chapter 39 (e.g., HS 3917 for polymer foams) are routinely inspected for compliance with REACH and RoHS chemical limits, and many buyers request CE or UL certification for safety and fire performance. Shipping of bulk foam products is commonly done in 20‑ft or 40‑ft containers, with pallets wrapped in stretch film to protect against moisture. Export documentation usually includes a Material Safety Data Sheet (MSDS), test reports for flame rating and ESD performance, and a declaration of compliance with destination country regulations. Incoterms such as FOB Suzhou or CIF Shanghai are typical for these goods.

Sourcing from Suzhou Sinkery Electronic Technology Co. Ltd. - Buyer Guidance

When sourcing these foams, request the latest IEC 61340‑5‑1 ESD test report, UL 94 flame‑rating certificate and a full MSDS for each material. Verify density, compression set and thermal‑stability data against the specifications needed for your end‑use. For RFID‑blocking sleeves, ask for an ISO/IEC 14443 attenuation test report and a fabric construction diagram to confirm shielding effectiveness. Confirm that the supplier can provide samples in the required thickness and that bulk packaging meets your logistics plan; common minimum order quantities are 500 kg per foam type, with lead times of 30‑45 days after sample approval.

What are the typical performance specifications for the ESD PU sponge anti‑static foam?

The foam usually has a density of 30‑60 kg m‑3, volume resistivity below 10⁶ Ω·cm and meets IEC 61340‑5‑1 for static dissipation. It is supplied in 25 kg bulk bags and can be cut to custom dimensions.

Which fire‑safety rating applies to the heat‑resistant silicone rubber foams?

Heat‑resistant silicone rubber foams from China are commonly tested to UL 94 V‑0 or V‑1. Buyers should request the UL test certificate to verify the rating for their application.

What temperature range can the PE XPE foam withstand?

PE XPE foam typically operates from - 30 °C up to 120 °C, with some high‑grade grades certified to 150 °C. The supplier’s data sheet will list the exact range for each batch.

How is the RFID‑blocking capability of the card sleeves measured?

Blocking performance is measured by signal attenuation at 13.56 MHz according to ISO/IEC 14443. Test reports show attenuation levels of at least 30 dB, which is sufficient for most access‑card applications.

Are the foams compliant with REACH and RoHS regulations?

Chinese polymer foam exporters generally provide REACH‑compliant material declarations and RoHS certificates confirming limits on lead, mercury, cadmium and hexavalent chromium. Request these documents before confirming the order.

What packaging formats are used for bulk shipment of the foams?

Bulk foams are packed in 25 kg polypropylene bags, stacked on Euro pallets (1200 mm × 800 mm) and shrink‑wrapped. For larger volumes, the pallets are loaded into 20‑ft or 40‑ft containers with moisture‑barrier liners.

What minimum order quantities and lead times are typical?

The supplier usually requires a minimum order of 500 kg per foam type. Lead time from order confirmation to shipment is 30‑45 days, depending on product customization and packaging.

Which certifications should a buyer request for these foam products?

Buyers should request CE or UL certification for fire performance, IEC 61340‑5‑1 test reports for ESD foams, REACH compliance statements and, where relevant, ISO 9001 quality‑management certification.