Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Sanmu SM604 Bisphenol A Epoxy Resin

Sanmu SM604 is a high-purity Bisphenol A epoxy resin from Sanmu’s SM series, offering excellent adhesion, chemical resistance and thermal stability. Widely used in composites, coatings and electronic encapsulation, it features low viscosity, superior mechanical strength and consistent reactivity for reliable curing performance.
  • sanmu sm604 bisphenol a epoxy resin_23695a8b
  • sanmu sm604 bisphenol a epoxy resin_23695a8b

Features Of Sanmu SM604 Bisphenol A Epoxy Resin

  1. High epoxy equivalent weight (EEW) of 480–520 g/eq, enabling precise stoichiometric control in curing formulations.

  2. Excellent thermal stability with glass transition temperature (Tg) up to 125 °C after full cure with standard diamine hardeners.

  3. Low viscosity (12,000–16,000 cP at 25 °C), facilitating easy processing, degassing, and impregnation in composite manufacturing.

  4. Superior chemical resistance to alkalis, dilute acids, and organic solvents post-cure.

  5. Consistent batch-to-batch reproducibility meeting ISO 9001-certified production standards.

Typical Applications Of Sanmu SM604 Bisphenol A Epoxy Resin

  1. Structural adhesives for aerospace and automotive bonding applications.

  2. Matrix resin for carbon fiber and fiberglass reinforced composites.

  3. Electrical encapsulation and potting compounds for high-voltage insulators and PCB components.

  4. Coatings for corrosion-resistant linings in chemical storage tanks and piping systems.

  5. Wind turbine blade structural bonding and shear web infusion resins.

Specifications Of Sanmu SM604 Bisphenol A Epoxy Resin

Chemical TypeBisphenol A-based liquid epoxy resin
Product FormClear, amber to light yellow viscous liquid
AppearanceHomogeneous, free from gel particles or sediment
Epoxy Equivalent Weight (EEW)480–520 g/eq
Viscosity (25 °C)12,000–16,000 cP
Chlorine Content≤ 800 ppm
Volatiles Content≤ 0.3 wt%
Storage Stability12 months at ≤ 25 °C in sealed original container


Sanmu SM604 Bisphenol A Epoxy Resin – Frequently Asked Questions (FAQ)

Q1: What are the primary applications for Sanmu SM604?

A: Sanmu SM604 is widely used in high-performance protective coatings, industrial flooring systems, electrical encapsulation compounds, and structural adhesives where excellent chemical resistance, mechanical strength, and adhesion to diverse substrates are required.


Q2: How does SM604 compare to standard liquid bisphenol A epoxy resins in terms of reactivity and processing?

A: SM604 exhibits moderate reactivity typical of medium-molecular-weight bisphenol A epoxy resins, offering balanced pot life and cure speed under ambient or elevated temperature conditions. It is compatible with common amine, anhydride, and catalytic curing agents, supporting both room-temperature and thermal-cure formulations.


Q3: Is SM604 suitable for food-contact or potable water applications?

A: SM604 is not pre-certified for direct food-contact or potable water use. Formulators intending such applications must conduct full regulatory evaluation—including migration testing and compliance verification—based on the final cured system and applicable regional requirements.


Q4: What viscosity range can be expected for SM604 at 25°C?

A: SM604 is supplied as a low-to-medium viscosity liquid resin, generally ranging from approximately 10,000 to 15,000 cP at 25°C, facilitating easy handling, mixing, and incorporation into multi-component systems without excessive dilution.


Q5: Can SM604 be blended with other epoxy resins or reactive diluents?

A: Yes, SM604 is fully miscible with most standard bisphenol A/F epoxy resins, novolac epoxies, and common reactive diluents (e.g., glycidyl ethers), enabling formulators to tailor viscosity, flexibility, crosslink density, and thermal performance to specific application needs.



Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *