Curing Agent Testing
Applicable scenarios:Raw material acceptance, formula matching, curing performance verification, storage stability, environmental safety, factory inspection, quality arbitration.
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Product Introduction
Detection range
Applicable products:Epoxy curing agent, polyurethane curing agent, UV curing agent, acrylic curing agent, unsaturated polyester curing agent, water-based curing agent, solvent based curing agent, powder coating curing agent, low temperature / room temperature / high temperature curing agent, latent curing agent, etc.
Applicable system:Epoxy system, PU system, acrylic system, unsaturated polyester system, radiation curing system, etc.
Applicable scenarios:Raw material acceptance, formula matching, curing performance verification, storage stability, environmental safety, factory inspection, quality arbitration.
Testing items
(1) Appearance and physical and chemical properties
Appearance, color, condition, transparency, impurities, odor
Density, viscosity, solid content, non-volatile matter, pH value, flash point
Moisture, ash content, volatile matter, amine value (epoxy curing agent)
NCO content (polyurethane curing agent)
(2) Storage and stability performance
Storage stability, thermal stability, freeze-thaw stability
Stratification, precipitation, gel, crystallization trend
(3) Compatibility and curing performance
Accuracy of ratio and applicable period (activation period)
Table drying time, actual drying time, curing speed
Curing degree, cross-linking degree, conversion rate
Compatibility with main paint, leveling, and workability
(4) Performance of paint film/cured material
Hardness, adhesion, impact resistance, flexibility
Wear resistance, scratch resistance, chemical resistance
Water resistant, salt spray resistant, moisture and heat resistant, and aging resistant
(5) Environmental Protection and Safety (Key)
VOC content, free formaldehyde, benzene derivatives
Heavy metals: lead, cadmium, mercury, hexavalent chromium
Free isocyanate monomer (PU curing agent)
Free amine, epichlorohydrin (epoxy curing agent)
Food contact migration amount (if applicable)
Testing standards
GB/T 1723-1993 Determination of viscosity of coatings
GB/T 1725-2007 Determination of Non volatile Matter Content in Coatings
GB/T 2794-2013 Adhesive viscosity determination method
GB/T 12007.3-2009 Determination of Total Amine Value of Epoxy Resin
GB/T 18446-2009 Amino Resin Curing Agent
HG/T 3608-2016 Polyurethane Curing Agent
GB/T 23986-2009 Determination of VOC Content in Coatings
GB 30981-2020 Limits of Hazardous Substances in Industrial Protective Coatings
GB/T 9286-1998 Paint film scratch method adhesion
GB/T 1763-2008 Determination of Chemical Resistance of Coatings
was established in 2011. As a national high-tech enterprise recognized by the Zhejiang Provincial Higher People's Court as a judicial authentication institution for construction engineering quality, we specialize in structural performance testing and safety assessment of construction projects, special equipment, communication towers, electromagnetic environments, large bridges, and building safety appraisal.
The company has more than 100 professional and technical personnel, over 90% of whom hold various medium and senior technical certificates. Equipped with complete testing equipment worth over RMB 10 million, our business scope covers the whole country.
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