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Broad-spectrum compatibility with epoxy resins, including standard DGEBA, novolac, and cycloaliphatic types.
Room-temperature curing capability with adjustable gel time (20–60 min at 25°C), enabling flexible processing windows.
Low viscosity (<1,200 cP at 25°C) for easy handling, precise metering, and excellent wetting of fillers and reinforcements.
Excellent thermal stability with glass transition temperature (Tg) exceeding 120°C in fully cured systems.
Low odor and low volatility formulation, supporting safer industrial handling and compliance with VOC-restricted environments.
Electrical insulation encapsulants and potting compounds for transformers, sensors, and power electronics.
High-performance structural adhesives in automotive and aerospace composite bonding.
Wind turbine blade bonding and repair matrices requiring fatigue resistance and moisture tolerance.
Protective coatings for metal and concrete substrates in marine and chemical processing environments.
Tooling and casting resins for rapid prototyping and mold-making applications.
| Chemical Type | Amine-based polyfunctional curing agent |
| Product Form | Liquid |
| Appearance | Pale yellow to amber clear liquid |
| Density (25°C) | 1.02–1.05 g/cm³ |
| Viscosity (25°C) | 1,000–1,300 cP |
| Amine Value | 380–420 mg KOH/g |
| Primary Applications | Epoxy resin curing for adhesives, coatings, composites, and encapsulants |
| Storage Stability | 12 months in original sealed container at 5–30°C |
Q1: What types of resin systems is BG-75 compatible with?
A: BG-75 is formulated as a universal curing agent for a broad range of epoxy resins, including bisphenol-A, bisphenol-F, and novolac-based epoxies. It demonstrates good reactivity with both liquid and solid epoxy grades, and is commonly used in solvent-free, high-solids, and low-VOC formulations.
Q2: How does BG-75 perform under elevated temperature or humid conditions?
A: BG-75 offers enhanced moisture tolerance compared to conventional amine hardeners, supporting consistent cure initiation even at moderate relative humidity. Its thermal stability allows for post-cure profiles up to 120°C, contributing to improved crosslink density and long-term chemical resistance in finished coatings and adhesives.
Q3: Is BG-75 suitable for food-contact or potable water applications?
A: BG-75 is not pre-certified for direct food-contact or potable water applications. Customers intending such use must conduct full regulatory evaluation—including migration testing and compliance verification—according to applicable regional requirements. KY Chemical provides technical support and documentation to assist qualified formulators in this process.
Q4: What is the typical handling and storage guidance for BG-75?
A: BG-75 should be stored in tightly sealed containers under dry, cool conditions (below 30°C) and protected from moisture and direct sunlight. It is recommended to use within 12 months of manufacture when stored properly. Standard industrial PPE—including nitrile gloves and eye protection—is advised during handling due to its amine functionality.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
