Kejian Polymer Materials (Shanghai) is presented as a source-reviewed supplier profile centered on KJ-662B high-temperature sealing tape, with company-published capability separated from buyer-side verification requirements.
Kejian Polymer Materials (Shanghai) Co., Ltd. supplies butyl sealing tapes, silicone-based and tooling rubbers, release cloth, PTFE release cloth, and silicone, modified-polyurethane, polyolefin, PUR, acrylic and epoxy adhesives under the TOBS/Kejian identity. The China Composites Expo classifies the company in adhesive, release-material, vacuum-bag consumable and sealant contexts, while the current official aerospace catalog provides named KJ product evidence. GetFRP does not relabel a generic release cloth as fiberglass cloth without a published substrate specification, and it does not inject a vacuum-infusion product phrase merely because a consumable may be used in vacuum-bag processing. Each formulation, service temperature, process compatibility and aerospace or other approval must be confirmed from the current grade-specific controlled file. Certifications and approval scope remain unverified.
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This procurement profile is built for engineering and procurement teams comparing a finished FRP or composite component against a controlled drawing, service condition and inspection plan. It organizes Kejian Polymer Materials (Shanghai) Co., Ltd.'s published products, processes, certificate references and official sources around the primary topic “Kejian Polymer Materials (Shanghai) KJ-662B high-temperature sealing tape.” The objective is to help a buyer decide whether to open a controlled RFQ, not to turn a broad company catalog into an unsupported approval.
Kejian Polymer Materials (Shanghai) Co., Ltd. currently lists 9 product or service groups and 9 manufacturing or support capabilities in this reviewed record. The public scope indicates what to investigate, while the buyer remains responsible for drawings, design calculations, standards, current certificates, sample approval and order-specific commercial confirmation. Claims below are attributed to the attached source set unless GetFRP explicitly labels them as qualification guidance.
Kejian's composites-relevant official offer includes KJ-662B high-temperature sealing tape, KJ-815 tooling rubber, KJ-915 silicone-based tooling rubber, KJ release cloth and KJ PTFE release cloth, alongside butyl, silicone, modified-polyurethane, polyolefin, PUR, acrylic and epoxy adhesive families. A tape RFQ should specify chemistry, cross-section or thickness, width and roll length, liner, tack, peel, service and processing temperature, compression or conformability, residue requirements, substrate preparation, storage and shelf life. Tooling-rubber projects additionally need hardness, dimensional format, lay-up and cure cycle, thermal expansion, repeated-cycle target, repair method and compatibility with the laminate resin and release system. Release-cloth inquiries must identify the actual substrate, PTFE or other finish, porosity, areal weight, thickness, width, temperature cycle, release surface and whether the material is disposable or intended for repeated use; the category name alone does not prove a fiberglass backing. Liquid, film or hot-melt adhesive quotations should define one- or two-component format, mix ratio, viscosity, open and fixture time, cure schedule, bond-line thickness, substrates, surface treatment, mechanical and environmental targets, color, packaging and dispensing equipment. Vacuum-bag, mold, aerospace, rail, automotive and electronics duties should be validated with the real substrate and full temperature-pressure cycle. Buyers should obtain current TDS and SDS, a lot COA, storage and transport requirements, controlled change notification and any application approval tied to the exact grade. The official site states a 2005 company origin, which this profile uses, but published scale, group history, management certificates and customer approvals are not presented as GetFRP verification. The expo category establishes composites relevance; it does not prove that Kejian manufactures reinforcement fibers, resin-infused laminates or finished carbon-fiber parts.
No company-level certification is listed on this profile.
Evaluate Kejian Polymer Materials (Shanghai) Co., Ltd. as a potential composite product manufacturer for KJ-662B high-temperature sealing tape, verify the public evidence and prepare a comparable RFQ.
Kejian Polymer Materials (Shanghai) Co., Ltd. includes this product in its published supply scope. Treat that listing as a starting point: request the current datasheet or drawing, material and construction, available grades or dimensions, guaranteed properties, production site, quotation revision and evidence that represents the exact item offered.
For KJ-815 tooling rubber, buyers should convert the catalog description into an acceptance specification. Confirm standard and custom options, raw-material system, critical tolerances, surface or finish, test basis, sample route, MOQ, lead time and packing. Any alternative proposed by Kejian Polymer Materials (Shanghai) Co., Ltd. should be identified explicitly rather than treated as automatically equivalent.
This product broadens the supplier's public portfolio, but GetFRP does not infer approval from a product name alone. Ask Kejian Polymer Materials (Shanghai) Co., Ltd. for the grade or model designation, manufacturing route, current technical file, production and test location, batch traceability and the limits that apply to published performance values.
A useful RFQ for KJ release cloth should describe the buyer's application without disclosing unnecessary proprietary detail, then state the measurable product requirements. Compare Kejian Polymer Materials (Shanghai) Co., Ltd.'s response against the same dimensions, quantity, inspection, documentation, Incoterm and delivery assumptions used for every shortlisted supplier.
Kejian Polymer Materials (Shanghai) Co., Ltd. publishes Butyl-rubber compounding and tape forming as part of its capability scope. Buyers should ask which site and equipment perform the work, the practical size or material limits, the normal control records and whether the proposed order uses the same route. Subcontracted stages should be visible in the quality plan.
The relevance of Silicone-based and tooling-rubber formulation depends on the requested product and acceptance criteria. During qualification, request a process flow, critical control points, inspection or test method, operator or equipment qualification where applicable, nonconformance handling and a recent example that represents the offered production route.
For sourcing purposes, High-temperature sealing-tape coating and lamination is a capability signal rather than independent verification. Confirm capacity, tooling or fixture availability, setup and changeover assumptions, lot definition, sample approval and traceability. The quotation should identify any limitation that could affect geometry, performance, appearance or delivery.
Buyers evaluating Release-cloth and PTFE release-material conversion should connect the process claim to evidence: an equipment list, controlled procedure, representative report, production photograph or witnessed sample may each answer a different risk. Kejian Polymer Materials (Shanghai) Co., Ltd. should also explain how the result is checked before release and recorded for the shipment.
These are sourcing contexts suggested by the published product scope, not confirmed project references. Validate the exact application, design basis and evidence in the RFQ.
Kejian Polymer Materials (Shanghai) Co., Ltd.'s reinforcement range can be screened for laminating, pultrusion, winding, molding or conversion programs. Buyers should confirm grade, sizing, architecture, width, tex or areal weight, package, splice and moisture limits, then run a representative processing trial before approving the material for repeat production.
Kejian Polymer Materials (Shanghai) Co., Ltd.'s chemistry portfolio can be evaluated for the named composite process only after the processing window and cured-property basis are aligned. Request current data sheets, grade and site identity, viscosity or mix control, cure and exotherm, storage, batch certificate fields and test evidence based on the intended reinforcement and construction.
Kejian Polymer Materials (Shanghai) Co., Ltd.'s tooling scope can be considered for new or replacement production tools. Buyers should release controlled product and interface drawings, material and process assumptions, critical datums, tool material and treatment, heating or flow requirements, trial conditions, acceptance measurements, ownership, maintenance and protected transport.
Kejian Polymer Materials (Shanghai) Co., Ltd.'s source record currently includes Kejian Official Website, About Kejian, Aerospace Products, KJ-662B Sealing Tape. These links let a buyer distinguish company-published information from GetFRP's own qualification guidance and return to the original context when a claim changes.
No company-level certification is presently listed in the reviewed profile. That does not prove that no document exists, but it means the RFQ should ask for the quality-system certificate and every product-specific test or approval needed by the buyer rather than assuming a certification from market reputation.
GetFRP last recorded a public-source review date of 2026-08-25. Public websites and catalogs can change after review, so commercial decisions should use newly downloaded files and direct supplier confirmation. GetFRP's public or claimed status describes profile ownership and identity controls; it does not certify every product statement or predict order performance.
Official product catalogs, web directories and technical guides published by the supplier.
Official company and material product entry.
Open catalogPublished company history and material scope.
Open catalogSealing-tape, tooling-rubber and release-material directory.
Open catalogOfficial high-temperature sealing-tape page.
Open catalogOfficial tooling-rubber page.
Open catalogOfficial PTFE release-cloth page.
Open catalogPublished Shanghai address, phone and email.
Open catalogOrganizer source for identity and composites categories.
Open catalog
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Nanjing Hitech Composites Co., Ltd. publishes an integrated HICOMA and Lica offer spanning pultruded carbon- and glass-fiber profiles, high-performance reinforcement fabrics and structural adhesives. Its current official catalog explicitly lists carbon-fiber plate, rod, tube, channel, rebar and prestressed plate systems; fiberglass beams, channels, angles, tubes, plates, rebar and grating; carbon- and glass-fiber fabrics; and bonding products for wind blades, carbon plate and civil structures. The China Composites Expo directory independently supports the Nanjing exhibitor identity and its pultruded-composite and epoxy-adhesive scope. GetFRP therefore assigns only demand phrases supported by those actual products, including carbon-fiber products, plates, rods, tubes and fabrics, pultruded fiberglass profiles and fiberglass grating. An application, system or performance label is not treated as a substitute for the offered grade, section drawing, laminate architecture, adhesive TDS or project engineering.