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High reactivity with standard bisphenol-A and bisphenol-F epoxy resins at ambient to moderate elevated temperatures.
Excellent chemical resistance post-cure, including resistance to alkalis, solvents, and mild acids.
Low viscosity and good compatibility for easy metering, mixing, and processing in industrial equipment.
Provides high glass transition temperature (Tg) and superior mechanical strength in cured systems.
Low volatility and non-crystallizing formulation ensures long-term storage stability and consistent performance.
Structural adhesives for automotive and transportation assembly.
High-performance coatings for industrial flooring and corrosion protection.
Electrical encapsulants and potting compounds for power electronics and transformers.
Composite matrix resins in wind turbine blade manufacturing and aerospace tooling.
Repair mortars and grouts for civil engineering infrastructure.
| Chemical Type | Aromatic amine-based curing agent |
| Product Form | Liquid |
| Appearance | Pale yellow to amber clear liquid |
| Density (25°C) | 1.08–1.12 g/cm³ |
| Viscosity (25°C) | 300–600 mPa·s |
| Amine Value | 380–420 mg KOH/g |
| Primary Applications | Structural adhesives, protective coatings, electrical encapsulation, composites |
| Key Features | Fast cure, high Tg, low volatility, excellent adhesion |
Q1: What is the primary chemical class of Sanwa KINGMIDE H-120?
A: Sanwa KINGMIDE H-120 is an amine-based epoxy curing agent, specifically formulated as a modified aliphatic polyamine to balance reactivity, flexibility, and low-temperature performance.
Q2: Is H-120 suitable for food-contact or potable water applications?
A: Sanwa KINGMIDE H-120 is not pre-qualified for direct food-contact or potable water systems. Its suitability for such applications depends on full formulation evaluation, including regulatory review and migration testing under applicable national or regional frameworks.
Q3: How does H-120 perform in low-temperature curing conditions?
A: H-120 exhibits enhanced low-temperature reactivity compared to conventional aliphatic amines, enabling effective cure initiation and development of mechanical properties even at ambient temperatures as low as 5–10°C, though full property development may require extended post-cure time.
Q4: Can H-120 be used with standard DGEBA-type epoxy resins?
A: Yes — H-120 is compatible with conventional liquid and solid bisphenol-A (DGEBA) epoxy resins, as well as many novolac and cycloaliphatic epoxies. Optimal stoichiometry and processing conditions should be determined empirically for each resin system.
Q5: What handling precautions are recommended for H-120?
A: As with most amine-based curing agents, H-120 may cause skin and respiratory sensitization. Users should wear appropriate PPE—including nitrile gloves, safety goggles, and adequate ventilation—and consult the Safety Data Sheet (SDS) prior to handling or processing.
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E-mail: wangxingqiang@ericwchem.com
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