Manufacturer-issued quality documents for our anhydride curing-agent line - MTHPA, MHHPA, THPA, HHPA and MNA. Download batch Certificates of Analysis (COA), Technical Data Sheets (TDS) and Safety Data Sheets (SDS/MSDS) directly, or request the document you need.
Each document answers a different question about our products. Here is a quick guide before you download.
Actual test results of a specific production batch - purity, colour, free acid, viscosity, melting point and more, measured against our specification at release.
Typical properties and recommended use levels for a product grade, with processing guidance for epoxy, UPR, alkyd and composite applications.
GHS 16-section document covering hazards, first aid, storage, transport classification and emergency response - required for shipment and workplace safety.
Note: COA documents below are reference release certificates issued by Heyi Chemical. Every shipment receives the COA matching the actual batch of that order - request your batch COA with your order or batch number at any time.
Batch release certificates for the anhydride curing-agent product line. Files are in PDF format and free to download.
Need a COA for a different batch or grade? Send your product name and order/batch number to info@heyichem.net - the COA matching your shipment is provided with every order free of charge.
Typical properties, recommended use levels and processing guidance by product grade.
GHS 16-section safety data sheets for transport, customs clearance and workplace safety.
Regulatory documents: For EU REACH support, restricted-substance declarations, IMDS/SCIP data or other compliance documentation, contact info@heyichem.net - our technical desk will confirm what can be provided for your market.
Questions buyers ask about certificates and technical documents.
What is the difference between COA, TDS and SDS?A Certificate of Analysis (COA) records the actual test results of a specific production batch. A Technical Data Sheet (TDS) describes typical properties and recommended use levels of a product grade. A Safety Data Sheet (SDS, also called MSDS) covers hazards, handling, storage, transport and emergency response in the GHS 16-section format.
Yes. Every shipment is released with the COA matching the actual production batch of that order, together with TDS and SDS where applicable. The COA documents on this page are reference release certificates; request a specific batch or grade COA by sending your order or batch number.
Our anhydride curing-agent line covers MTHPA (HMT-9600 series grades such as 9601–9608, 908M1 and MHM-700), MHHPA, THPA, HHPA (including HMT-6001) and MNA. COA, TDS and SDS documents are available for each product.
Email info@heyichem.net with the product name and the document you need - the COA of a specific batch, TDS of a grade, an SDS in another language, or regulatory documents. Our technical team replies within 24 hours on business days.
Our SDS documents follow the 16-section GHS format and current regulatory requirements, in English and Chinese. Revisions are identified by revision number - always use the latest revision for classification and transport.
Tell us the product, the document type and your destination market - we reply with the correct files and any regulatory guidance within one business day.
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