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Low-viscosity, reactive liquid bisphenol-A epoxy resin enabling excellent processability and wetting of fillers and reinforcements.
High epoxy equivalent weight (EEW) suitable for formulating high-performance structural adhesives and composite matrices.
Excellent chemical resistance post-cure, particularly to alkalis, solvents, and moderate acids.
Good thermal stability and compatibility with common amine and anhydride curing agents.
Consistent batch-to-batch quality supported by Dow’s rigorous manufacturing controls and traceability.
Structural adhesives for aerospace, automotive, and rail bonding applications.
Matrix resin in fiber-reinforced composites for wind turbine blades and industrial laminates.
Electrical encapsulation and potting compounds requiring low exotherm and dimensional stability.
High-performance coatings for corrosion protection on steel infrastructure and marine equipment.
Tooling resins for molds used in composite part manufacturing.
| Chemical Type | Bisphenol-A based diglycidyl ether epoxy resin |
| Product Form | Clear to pale yellow low-viscosity liquid |
| Appearance | Transparent, slightly viscous liquid at 25°C |
| Epoxy Equivalent Weight (EEW) | 470–490 g/eq |
| Viscosity at 25°C | 12,000–16,000 cP |
| Chloride Content | ≤ 500 ppm |
| Volatile Organic Compounds (VOC) | Non-VOC (negligible volatiles) |
| Primary Applications | Adhesives, composites, encapsulants, coatings, tooling |
Q1: What is the primary functional role of Dow DER F 352 in epoxy formulations?
A: Dow DER F 352 is a liquid bisphenol-F based epoxy resin designed primarily as a reactive diluent and viscosity modifier. It reduces formulation viscosity without significantly compromising crosslink density or thermal performance, enabling improved processability in casting, potting, and coating applications.
Q2: How does Dow DER F 352 compare to bisphenol-A epoxy resins like DER 331 in terms of reactivity and final properties?
A: Compared to standard bisphenol-A resins, Dow DER F 352 offers higher epoxide equivalent weight and lower viscosity, resulting in slower initial cure kinetics but often enhanced chemical resistance and reduced internal stress in cured networks—particularly beneficial for thick-section castings and high-performance coatings.
Q3: Is Dow DER F 352 compatible with common amine, anhydride, and phenolic hardeners?
A: Yes, Dow DER F 352 is broadly compatible with standard epoxy curing agents—including aliphatic and aromatic amines, cyclic anhydrides, and phenolic novolacs. Its reactivity profile supports flexible formulation design across ambient, elevated, and post-cure conditions.
Q4: Can Dow DER F 352 be used in food-contact or potable water applications?
A: Dow DER F 352 is not pre-qualified for direct food-contact or potable water applications. Formulators must conduct full regulatory evaluation—including extractables testing and compliance verification with applicable regional requirements—before considering use in such sensitive end uses.
Q5: What are key handling and storage recommendations for this liquid epoxy resin?
A: Store in tightly sealed containers under dry, cool conditions (preferably below 30°C) and protect from moisture, direct sunlight, and prolonged exposure to elevated temperatures. Avoid contamination with amines or other active hydrogen-containing materials prior to intended use.
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