HX-878 Manufacturers & Suppliers
2,5-Tepanol bonding agent for qualified industrial and aerospace procurement.
HX-878, commonly known as Tepanol, is a cyanoethylated polyamine used as a specialty bonding agent and processing aid in controlled composite systems. It is identified by CAS No. 68412-46-4 and is generally supplied as a viscous yellow-to-amber liquid. Manufacturer literature describes HX-878 as a reaction product of tetraethylenepentamine, acrylonitrile and glycidol.
ORBITALA supports qualified organizations seeking HX-878 manufacturers and suppliers in Europe, the EU and international markets. Procurement requires more than a trade name: the buyer should confirm the chemical identity, approved manufacturer, technical specification, batch documentation, storage history, country of origin and regulatory eligibility before accepting an offer.
HX-878 (Tepanol) Manufacturers & Suppliers - Table of Contents:
Laboratory technician examining DTBHQ (2,5-Di-tert-butylhydroquinone) crystals during quality testing.
What Is HX-878 (Tepanol)?
HX-878 is the commercial designation commonly associated with Tepanol, a cyanoethylated polyamine reaction product. The substance is also described as 2-propenenitrile reaction products with glycidol and tetraethylenepentamine. Unlike a single, low-molecular-weight compound, HX-878 is a reaction-product material whose functional profile is defined by controlled manufacturing and batch testing.
The material contains amine, nitrile and hydroxyl functionality. In qualified composite systems, these groups support interaction between solid filler surfaces and a polymeric binder network. The intended result is improved filler-to-binder adhesion, more manageable processing behavior and better mechanical consistency in the cured composite. Performance remains formulation-specific and must be demonstrated in the customer's approved system.
HX-878 should not be confused with HX-879, also known as Tepan. HX-879 is based on the reaction of tetraethylenepentamine with acrylonitrile, whereas HX-878 includes the glycidol-adduct component. The two product names, CAS numbers and specifications are not interchangeable.
HX-878 Product Overview
The values above are product-identification information, not universal acceptance criteria. The approved manufacturer specification, current safety data sheet and batch-specific certificate of analysis control the purchase.
How HX-878 Functions?
Composite materials depend on effective stress transfer between a dispersed solid phase and the surrounding polymer matrix. When interfacial adhesion is weak, the composite can be more vulnerable to debonding, void formation and inconsistent mechanical response. HX-878 is selected to improve this interface in qualified formulations.
Its functional groups can interact with selected particulate surfaces while participating in or associating with the binder network. This dual affinity helps anchor the particle surface to the polymer phase. Manufacturer literature also identifies a processing-aid effect, including reduced end-of-process viscosity in compatible systems.
The effect is not automatic. Filler chemistry, surface condition, moisture, binder type, curative package, temperature history and the presence of other additives can all change the result. A technically similar bonding agent should not be substituted without comparative qualification and authorization from the responsible engineering authority.
Main Applications of HX-878
Bonding Agent in HTPB Composite Systems
HX-878 is used as a bonding agent in hydroxyl-terminated polybutadiene, or HTPB, composite binder systems. Its role is to strengthen the interface between selected solid particles and the elastomeric polyurethane matrix. This can support mechanical integrity, strain capability and consistency of the finished composite when the complete formulation and curing system are correctly qualified.
Ammonium Perchlorate Containing Composites
Historical product literature describes HX-878 for composite systems containing ammonium perchlorate. In this context, the material is selected for its combined bonding and processing functions. Because interaction with the particle surface can release volatile by-products, manufacturing use requires an approved process, suitable ventilation and validated quality controls. Detailed processing conditions must come from the responsible manufacturer and the customer's authorized production documentation.
Nitramine Modified Composite Systems
Certain current supplier specifications also position HX-878 for nitramine-containing or nitramine-modified HTPB composites. The nitrile-rich functionality can support adsorption at the particle surface while hydroxyl functionality contributes to compatibility with the crosslinked binder network. Suitability must be established for the exact solids, binder, curative and performance requirements.
Processing Aid
HX-878 may help control viscosity and particle wetting in selected high-solids composite systems. This processing benefit can improve reproducibility and handling during authorized production. It should be evaluated together with the full additive package because moisture, storage age and raw-material variation can influence viscosity and reactivity.
Specialty Elastomeric and Filled Polymer Systems
The chemistry may also be evaluated in other highly filled elastomeric or polyurethane-based systems that require improved filler-to-binder interaction. Such use is application-specific. A buyer should not assume that a grade qualified for one controlled composite will perform identically in another polymer or filler system.
Technical Specifications and Quality Parameters
Commercial specifications vary by manufacturer. The following ranges combine currently published supplier indexes with typical values reported for a historical commercial grade. They are useful for preliminary comparison but should not be converted into contractual limits without written supplier confirmation.
HX-878 (Tepanol) is referenced in military procurement under MIL-T-82824, and buyers should confirm the applicable revision, test methods and acceptance criteria before purchase.
A product listed simply as 99 percent HX-878 should be reviewed carefully. Because HX-878 is a defined reaction product, conventional purity language may not describe the functional distribution that determines performance. Amine profile, hydroxyl value, viscosity, moisture and comparative application testing are more informative than a marketplace purity claim by itself.
Grade Equivalence and Product Identification
The HX-878 name is widely recognized, but commercial materials can differ in raw-material control, reaction distribution, residual content, viscosity, color and storage behavior. Product identification should therefore use several independent elements rather than relying on the trade name alone.
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Exact product designation and manufacturer name.
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CAS No. 68412-46-4 and matching chemical description.
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Current manufacturer technical specification and revision date.
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Batch-specific certificate of analysis.
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Current safety data sheet for the supplied country and grade.
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Country and site of manufacture, not merely the dispatch warehouse.
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Packaging configuration, storage conditions and remaining shelf life.
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Documented equivalence or application qualification when replacing an approved source.
HX-878 and Tepanol are commonly used as equivalent names, but the buyer should still verify that the offered product matches the approved chemical identity and functional specification. HX-879, Tepan and other bonding agents require separate technical evaluation.
HX-878 Manufacturers and Suppliers in Europe and the EU
Organizations searching for HX-878 manufacturers EU or HX-878 suppliers EU will often encounter importers, specialist distributors and project-based sourcing companies rather than a public catalogue of European production plants. A warehouse, sales office or EU invoicing entity does not establish that the material was manufactured in Europe.
For HX-878 Europe procurement, the buyer should ask the supplier to identify the original producer, manufacturing country, batch number, specification, shelf-life status and regulatory route. The technical dossier should be reviewed before commercial acceptance, particularly when the material is intended to replace a previously qualified grade.
TEPANOL, CAS No. 68412-46-4, appears in the Common Military List of the European Union. Transactions may therefore require export-control review, end-user and end-use documentation, import authorization and destination-country approvals. REACH obligations and inventory status must also be assessed for the specific importer, tonnage, jurisdiction and use; a generic claim of EU availability is not sufficient evidence of compliance.
Regions Where HX-878 Is Manufactured
HX-878 production is concentrated among specialist manufacturers with experience in controlled polyamine reaction products and demanding composite applications. Publicly verifiable production information is limited, and many companies that advertise HX-878 are traders or laboratory suppliers rather than original manufacturers. Buyers should distinguish manufacturing origin from distribution location.
United States
The United States is historically associated with HX-878 through the 3M Dynamar commercial grade. A 3M safety data sheet identifies 3M as the manufacturer and the product as a cyanoethylated polyamine used as a binder. Current availability, production site, packaging and export eligibility should be confirmed directly for each transaction because a corporate address or historical product bulletin does not by itself prove the current plant of origin.
China
China has publicly documented commercial production of HX-878 equivalents. TANYUN lists Cyanoethylated Polyamine HX-878, CAS No. 68412-46-4, with a current technical index covering amine content, hydroxyl value, viscosity and moisture. Chinese manufacturers and suppliers should still be evaluated for actual plant identity, quality-system scope, batch traceability, export permission and consistency with the customer's approved reference grade.
South Korea
South Korea has established aerospace and specialty-chemical capabilities. Dongin Chemical publicly lists Tepanol HX-878 among its aerospace and satellite business products and identifies multiple Korean production facilities. Buyers should request written confirmation of whether the offered HX-878 is manufactured at a named Korean site or sourced through the company, together with the applicable specification and certificate of origin.
Europe
Europe has specialist chemical distributors, controlled-material supply chains and qualified end users, but publicly documented dedicated HX-878 manufacturing capacity is limited. Material offered by an EU supplier may originate in North America or Asia. European purchasers should verify the manufacturing site, country of origin, EU regulatory basis and export-control documentation before treating an offer as European manufacture.
Saudi Arabia
Saudi Arabia is expanding its domestic aerospace, defense and specialty-chemical capabilities. However, publicly available manufacturer documentation reviewed for HX-878 does not establish a dedicated Saudi production site. Buyers seeking HX-878 suppliers in Saudi Arabia should expect controlled import or project-based sourcing unless the seller identifies a local plant and provides auditable manufacturing, quality and origin records.
Singapore
Singapore is a major Asian hub for specialty-chemical storage, trade and regional distribution. Its strategic-goods controls specifically identify TEPANOL, CAS No. 68412-46-4, which makes regulatory classification an important part of any transaction. Public evidence of dedicated local HX-878 manufacture is limited; Singapore-based supply is more likely to involve authorized import, stockholding or re-export from an overseas manufacturing source.
Taiwan
Taiwan has advanced polymer, electronics, precision-chemical and aerospace supply chains. Publicly verifiable information on dedicated HX-878 production in Taiwan remains limited. A Taiwan-based offer should therefore be checked to determine whether the company is the original manufacturer, a formulator, a laboratory supplier or an importer. The original producer, manufacturing country and applicable export-control status should appear in the procurement file.
United Arab Emirates
The United Arab Emirates is an important logistics and re-export center for industrial chemicals serving the Middle East. Public sources do not clearly establish dedicated large-scale HX-878 manufacture in the UAE. Supply may be arranged through regional importers or project suppliers, but the buyer should not treat a UAE warehouse or invoice address as proof of local production. Origin, manufacturer authorization, storage history and regulatory eligibility require written confirmation.
Quality Assurance and Batch Acceptance
HX-878 purchasing should be supported by a defined batch-acceptance plan. The required depth depends on the approved application, but identity, functional composition and storage condition should be confirmed before the material is released for use.
The contract should identify the controlling test methods, sampling plan, acceptance limits, retest rules and response to nonconforming material. A certificate of analysis should be linked to the physical batch and should not be accepted as a generic product statement.
Packaging Storage and Transportation
Packaging varies by producer and program. Historical manufacturer literature documented small and medium commercial units, while current equivalent products may be supplied in other sealed container sizes. The package must be chemically compatible, moisture-resistant, traceable and suitable for the approved transport route. Repacking should be disclosed because it can affect origin documentation, contamination risk and remaining shelf life.
Storage instructions are grade-specific. Historical product information recommended cold storage and moisture protection to limit ammonia evolution and viscosity increase, with a stated two-year shelf life under those conditions. A current Chinese supplier specification instead calls for sealed storage in a cool, ventilated place and states a 12-month shelf life. The current manufacturer technical data sheet, not an older bulletin or another supplier's practice, should control storage.
The safety-storage section of an SDS and the technical storage recommendation serve different purposes. An SDS may state that no special safety storage conditions are required while the technical bulletin recommends colder storage to preserve product performance. Buyers should preserve both requirements in the logistics plan.
Transport classification must be taken from the current SDS for the exact commercial grade and shipment. The 3M SDS reviewed for this article directs users to the manufacturer for transport information rather than assigning a universal classification. No UN number or dangerous-goods class should be inferred from the HX-878 name alone.
Regulatory and Export Control Considerations
HX-878 procurement may be subject to chemical regulation, strategic-goods controls and military end-use controls. The applicable route depends on the manufacturing country, exporter, destination, consignee, end user and final application.
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The 2024 Common Military List of the European Union names TEPANOL, CAS No. 68412-46-4.
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A current 3M SDS notes that the material may contain one or more ingredients regulated under the United States International Traffic in Arms Regulations.
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Singapore's strategic-goods control list identifies TEPANOL by name and CAS number.
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REACH, chemical inventory and notification obligations must be confirmed for the actual importer and transaction.
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Export, import, transit, end-user and end-use approvals may be required before shipment.
Regulatory eligibility should be assessed before stock is allocated or payment terms are finalized. A technically suitable material cannot be supplied when the parties, destination or proposed use do not satisfy the applicable controls.
Selecting an HX-878 Manufacturer or Supplier
A reliable HX-878 supplier should be able to connect the commercial offer to an identifiable manufacturing source and a complete technical dossier. Price and nominal availability are secondary when the material must remain consistent with an approved program.
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Confirm whether the company is the original manufacturer, authorized distributor or independent trader.
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Verify the plant of origin and the quality-system scope covering the supplied product.
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Compare the offered specification with the approved reference, including amine profile, hydroxyl value, viscosity and moisture.
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Review batch traceability, certificate-of-analysis practices and change-control procedures.
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Confirm packaging, storage temperature, shelf life and minimum remaining life at delivery.
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Assess export-control, import, transit and end-user documentation before confirming the order.
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Define inspection, rejection and replacement responsibilities in the purchase contract.
Information Required for an HX-878 Quotation
A complete inquiry allows HX-878 suppliers to evaluate technical fit, regulatory eligibility and delivery feasibility without avoidable delays. Qualified buyers should provide:
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Exact product designation, including HX-878 or Tepanol and any approved manufacturer reference.
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Required technical specification, revision and acceptance limits.
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Requested quantity and preferred packaging configuration.
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Destination country, consignee and delivery location.
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End user and authorized end use.
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Requested delivery schedule and acceptable remaining shelf life.
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Required certificate of analysis, SDS, origin statement and quality documents.
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Inspection, sampling or witness-testing requirements.
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Import authorization, end-user certificate or other available regulatory documents.
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Any restrictions on manufacturing country, producer or repacking.
How ORBITALA Supports HX-878 Procurement
ORBITALA works with qualified industrial, aerospace and defense-sector customers seeking HX-878 suppliers in Europe, the EU and international markets. Support may include reviewing the requested product identity, comparing available specifications, identifying potential manufacturing sources and coordinating the technical and commercial documentation required for evaluation.
ORBITALA may also assist with packaging alignment, batch-document requirements, country-of-origin confirmation and the planning of a compliant delivery route. Every transaction remains subject to technical acceptance, product availability, manufacturer approval, destination restrictions, end-user verification and all applicable export, import and transit authorizations.
Frequently Asked Questions
Request Information About HX-878
Organizations seeking HX-878 should provide the required grade or approved manufacturer reference, specification, quantity, packaging, destination country and requested delivery schedule. The inquiry should identify the consignee, end user and authorized application and include any available import permits, end-user documentation or origin restrictions. ORBITALA will review the request to assess technical compatibility, product availability and the feasibility of a compliant procurement and delivery route.