Import Flash Foam — Buy in Bulk from Supplier in China

Flash foam is a dense, closed-cell polyurethane material designed for use in self-inking stamp pads, with standard dimensions including 450mm by 178mm by 7mm, 450mm by 178mm by 4mm, and 330mm by 150mm by 3mm, among others. These sizes are engineered to fit common stamp shell housings and ensure consistent ink distribution through even compression. The foam is cut to precise tolerances to prevent warping or uneven wear under repeated stamping pressure.

The material composition is typical of industrial stamp foam, with a density range of 45 to 60 kg/m³ and a compression set under 15% after 22 hours at 70°C, which ensures long-term shape retention. It is formulated for low ink absorption and high rebound, allowing clear, repeatable impressions without smearing. Unlike open-cell foams, this variant resists drying and maintains performance across a range of ink types, including oil-based and water-based stamp inks.

This foam is primarily purchased by manufacturers of self-inking stamps, custom stamp producers, and distributors of office and industrial marking tools. Buyers typically source it in bulk for integration into stamp assemblies or as replacement pads. Packaging is usually flat-packed in cartons, with minimum order quantities varying by size and thickness. Lead times are generally 7 to 14 days after order confirmation, and shipping is commonly handled under FOB Shanghai terms.

Shanghai Golden Stamps International Trade Co., Ltd. is a supplier based in Minhang District, Shanghai, focused on stamp-related materials and equipment. The company offers OEM services for stamp foam, ink, and machinery, and lists flash foam as one of its core product lines. Its profile does not indicate production capacity, workforce size, or export history beyond its product range and address.

The supplier has no publicly listed certifications, third-party audits, or verified response metrics. Its trust tier is classified as harbor, indicating basic platform verification. Buyers should confirm production capabilities and quality control processes directly before placing bulk orders. No client references, case studies, or historical data are provided in the listing.