Low-viscosity liquid epoxy resin suitable for ambient or mild-heat curing systems.
Excellent adhesion to metals, glass, and composite substrates.
Good chemical resistance to dilute acids, alkalis, and polar solvents.
High purity with low chloride ion content (< 500 ppm), ensuring reliability in electronic encapsulation.
Compatible with standard amine, anhydride, and catalytic hardeners for flexible formulation design.
Electrical insulation and potting compounds for transformers and sensors.
Structural adhesives for aerospace and automotive bonding applications.
Composite matrix resin for carbon fiber and fiberglass laminates.
Coating binders for corrosion-resistant industrial floor and tank linings.
Encapsulants for LED modules and power electronics packaging.
| Chemical Type | Bisphenol-A based diglycidyl ether epoxy resin |
| Product Form | Clear, low-viscosity liquid |
| Appearance | Colorless to pale yellow, transparent |
| Epoxy Equivalent Weight (EEW) | 184–190 g/eq |
| Viscosity at 25°C | 12,000–15,000 cP |
| Chloride Content | ≤ 500 ppm |
| Volatiles Content | ≤ 0.3 wt% |
| Storage Stability | ≥ 12 months at ≤ 25°C in sealed containers |
Q1: What is the primary functional role of YD-134L in epoxy formulations?
A: YD-134L functions as a reactive diluent and viscosity modifier, enabling improved processability while maintaining epoxy functionality and contributing to final crosslink density.
Q2: Is YD-134L compatible with standard amine and anhydride curing agents?
A: Yes, YD-134L demonstrates broad compatibility with common aliphatic and aromatic amines, as well as cyclic anhydrides, and integrates smoothly into conventional epoxy curing systems without phase separation or premature gelation.
Q3: How does YD-134L affect pot life and cure kinetics compared to conventional glycidyl ether diluents?
A: Due to its molecular structure, YD-134L typically extends working time relative to highly reactive mono-functional diluents, while supporting efficient network formation during thermal cure—pot life and full cure profile remain adjustable via catalyst selection and thermal schedule.
Q4: Can YD-134L be used in coatings requiring low VOC content?
A: Yes, YD-134L is a low-volatility, non-reactive-diluent-free reactive diluent, making it suitable for formulating high-solids and low-VOC epoxy coatings without compromising film integrity or chemical resistance.
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