Introduction
SEAL KING ADHESIVE TAPE TECHNOLOGY (HAI AN) CO., LTD. (Chinese: 王佳胶带科技（海安）有限公司) is a Chinese manufacturer of specialized adhesive tapes, with a product portfolio centered on bag sealing tapes, tamper-evident and security tapes, double-sided tapes, foam tapes, protective films, and related OEM/ODM offerings. The company is associated with the broader Seal King brand family and operates as a tape-focused materials processor serving packaging, industrial, and electronics-related applications.
The company’s published materials indicate that it combines research and development, production, and sales in one organization and markets products to customers in China and overseas. Its facility profile describes a workshop and office building of more than 10,000 square meters, more than 100 employees, and production equipment including gluing, rewinding, forming, hot-melt, printing, and bag-blowing machines. The same source states that its tapes have been exported to more than 80 countries, underscoring a business model oriented toward international packaging and industrial tape markets.
History and Development
The company’s public-facing history traces its roots to the broader Seal King group, which describes itself as having a history of more than 40 years in tape manufacturing. One corporate profile states that the business first entered mainland China in 1994, established manufacturing in Shanghai Changning, and later expanded capacity in Shanghai Songjiang in 1998 before investing in Hai'an, Jiangsu, in 2015.
A key development in the company’s technical positioning was the launch of solvent-free water-based eco-friendly sealing tapes and related environmentally oriented tape products, which the company says helped expand capacity and meet demand for lower-emission packaging materials. Another milestone cited in trade-show materials is the company’s claim to have created the first roll of sealing tape in 1983, a statement that, if taken as a corporate-origin claim, places innovation in resealable packaging among its long-term brand narratives.
The company has also accumulated formal recognitions in China. Public notices list it as an innovative small and medium-sized enterprise candidate in Nantong in 2023 and as a tier-three workplace safety standardization enterprise in the same year. Earlier administrative records also show a company-name change from 王佳胶带科技（南通）有限公司 to 王佳胶带科技（海安）有限公司, reflecting its geographic and corporate reorganization in Jiangsu.
Business Operations and Segments
SEAL KING’s operations are centered on the manufacture of specialty adhesive tapes rather than broader plastics conversion or commodity film production. The company’s disclosed product structure suggests several commercial segments:
- Packaging and bag sealing tapes, including resealable and permanent types.
- Security and tamper-evident tapes, used to show opening or interference.
- Industrial double-sided tapes, including PET-based products with acrylic adhesive systems.
- Foam and protective tapes/films for surface protection and cushioning.
- Stationery and general-purpose tapes for consumer or light commercial use.
The company also presents itself as an OEM & ODM supplier, indicating contract manufacturing capability for customer-specific specifications, branding, and formulations. This is typical of the specialty tape segment, where customers often require customized width, thickness, adhesive performance, release liners, print graphics, and converting formats.
Products and Technologies
The company’s published product descriptions indicate a focus on tapes designed for reclosability, security, adhesion strength, and packaging efficiency. Among the specific product types referenced by the company are:
- Resealable bag sealing tape
- Permanent bag sealing tape
- Tamper-evident / security tape
- Double-sided adhesive tape
- Foam tape
- Protective film
- Stationery tape
Technically, the company’s industrial tape offering includes high-tack PET double-sided tape using acrylic adhesive, which is described as suitable for bonding to a range of boards and substrates. The security-tape line is presented as applicable to multiple surfaces such as metal, plastic, paper, and glass, reflecting a design emphasis on cross-substrate adhesion and visible evidence of tampering.
The company’s manufacturing setup, as described on its official facility page, includes gluing machines, rewinding machines, forming machines, hot-melt machines, printing machines, and bag-blowing machines. Its process flow includes bag blowing, forming, printing, gluing, rewinding, slitting, packing, inspection, storage, and delivery, indicating an integrated converting operation rather than a single-step coating business.
The company also states that its products have obtained or passed testing and compliance-related documentation including MSDS, TDS, APEO, REACH, and RoHS references. In practice, this suggests attention to regulatory and customer requirements in export-oriented packaging and industrial supply chains.
Applications and End Markets
SEAL KING’s tape products are used in sectors where secure closure, surface protection, and efficient converting are important. Based on the company’s product descriptions, the main end markets include:
| End market | Likely use cases |
|---|---|
| Packaging | Resealable bag closure, carton sealing, product presentation |
| Industrial manufacturing | Bonding, mounting, masking, surface protection |
| Electronics | Specialty adhesive and double-sided tape applications |
| Consumer goods | Stationery and general-purpose tape products |
| Security-sensitive packaging | Tamper evidence and anti-opening features |
| Automotive and technical assembly | Foam tape and high-bond tape applications |
Trade data providers also indicate export activity to markets including Mexico, Vietnam, and Sri Lanka, with shipments reported to buyers in multiple countries. Company and exhibition materials further state that products have been sold in Southeast Asia, Europe, and the Americas, suggesting a diversified export footprint.
Global Presence and Market Position
The company positions itself as an internationally active tape supplier rather than a domestic-only converter. Its facility statement claims exports to more than 80 countries, and trade-data summaries show recorded shipments and buyers in overseas markets.
Industry-exhibition listings place the company among exhibitors at packaging and printing trade fairs, including ChinaPlas-related eMarketplace records and other packaging industry events, which points to active participation in B2B channel development. The company’s dual-language branding, use of English product pages, and OEM/ODM emphasis are consistent with an export-facing specialty manufacturer.
Compared with larger diversified adhesive multinationals, SEAL KING appears to occupy a specialized niche in functional tape products, especially bag sealing and tamper-evident applications. Its competitive position is therefore likely shaped less by commodity scale than by product variety, customization, and converting capability.
Sustainability and Environmental Initiatives
The company’s materials reference solvent-free water-based eco-friendly sealing tapes and related environmentally oriented products, indicating a response to industry demand for lower-VOC and more sustainable packaging materials. This is relevant in the broader plastics and packaging sector, where customers increasingly seek alternatives that reduce solvent use and improve recyclability or packaging efficiency.
The company also lists environmental and compliance documentation such as REACH and RoHS among product-related certifications or test references. These frameworks are not sustainability claims by themselves, but they are relevant to chemical safety and restricted-substance control in international supply chains.
At the regional level, local government records place the company within environmental and enterprise registries in Nantong, reflecting its formal integration into regulated manufacturing oversight.
Financial Performance and Economic Impact
The company has not published detailed public financial statements in the available sources, so revenue, profit, and margin figures cannot be verified from the materials reviewed. Available evidence instead points to economic impact through export activity, manufacturing employment, and local industrial participation.
Trade records indicate a reported export value of approximately USD 2.02 million in aggregated shipment data, though this should be treated as a trade-data estimate rather than audited financial disclosure. The company’s physical footprint, workforce size, and participation in local government recognition programs suggest that it is a meaningful mid-sized industrial employer in Hai'an’s manufacturing base.
Leadership and Corporate Governance
Publicly available sources provide limited details on the company’s internal governance structure, board composition, or executive leadership. The available evidence shows that it operates under a formal corporate identity in Jiangsu and that it has been recognized in local government programs related to innovation, safety, and enterprise development.
The company’s official materials emphasize its integrated organizational model of R&D, production, and sales, which suggests centralized management of product development and market execution. No reliable source in the reviewed material provides sufficient detail to characterize the company’s ownership structure beyond its corporate naming and historical association with the Seal King group brand family.
Innovations and Future Outlook
SEAL KING’s future prospects are likely tied to demand for specialty packaging tapes, tamper-evident solutions, and custom adhesive systems in export-oriented manufacturing and logistics. Its product range and machinery list indicate that it already operates as a converting and specialty-coating business capable of supporting custom specifications, which is valuable in markets where performance, print quality, and regulatory compliance matter.
The company’s stated focus on environmentally friendlier solvent-free tapes aligns with broader industry pressures to reduce hazardous inputs and meet customer sustainability targets. If it continues to expand technical differentiation in high-value tape categories such as security, electronics, and automotive foam applications, it may strengthen its role as a niche supplier in the global adhesive tape supply chain.
Summary
SEAL KING ADHESIVE TAPE TECHNOLOGY (HAI AN) CO., LTD. is a specialty adhesive tape manufacturer based in Hai'an, Jiangsu, focused on packaging, security, industrial, and OEM/ODM tape solutions. Its significance in the plastics and packaging ecosystem comes from its role as a converting and tape-technology producer that combines R&D, manufacturing, and export sales, with particular strengths in bag sealing and tamper-evident products.
References
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CPS+ eMarketplace. (n.d.). SEAL KING ADHESIVE TAPE TECHNOLOGY (HAI AN) CO., LTD.SEAL KING ADHESIVE TAPE TECHNOLOGY (HAI AN) CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1016748Link