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Low-viscosity aliphatic amine-based curing agent enabling excellent flow and wetting on substrates.
Fast-reacting at ambient temperature with balanced pot life and cure speed for efficient production cycles.
Provides superior flexibility and impact resistance in cured epoxy systems without compromising chemical resistance.
Low odor and low volatility formulation, supporting safer handling and compliance with industrial hygiene standards.
Compatible with standard DGEBA-type epoxy resins, offering broad formulation versatility.
Industrial flooring systems requiring rapid turnaround and abrasion resistance.
Electrical encapsulation and potting compounds for moisture-sensitive electronic components.
High-performance adhesives in automotive and transportation assembly applications.
Protective coatings for concrete and steel infrastructure exposed to mild chemical environments.
Composite matrix resins for filament-wound pipes and tanks in water treatment systems.
| Chemical Type | Aliphatic polyamine adduct |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| Specific Gravity (25°C) | 0.94–0.97 g/cm³ |
| Viscosity (25°C) | 200–350 mPa·s |
| Amine Value | 380–420 mg KOH/g |
| Reactivity Profile | Ambient-curing, exothermic peak ~65–75°C (with standard DGEBA resin) |
| Storage Stability | 12 months unopened at 5–30°C |
Q1: What type of epoxy systems is SM2016 designed for?
A: SM2016 is a latent, amine-based curing agent formulated primarily for use with standard bisphenol-A and bisphenol-F epoxy resins in thermosetting applications requiring extended pot life and controlled reactivity—such as powder coatings, electrical encapsulants, and high-performance composites.
Q2: How does SM2016 compare to conventional DICY or aromatic amine hardeners in terms of processing behavior?
A: Unlike fast-reacting aromatic amines, SM2016 offers improved latency at ambient temperature while enabling efficient thermal cure onset typically above 120°C. It provides longer working time than DICY in many formulations and avoids the handling and toxicity concerns associated with highly reactive primary amines.
Q3: Is SM2016 suitable for powder coating applications?
A: Yes—SM2016 is widely used in epoxy and epoxy-polyester hybrid powder coatings due to its excellent storage stability, low volatility, and ability to deliver smooth film formation, good mechanical properties, and consistent crosslink density after thermal cure.
Q4: What is the typical dosage range for SM2016 in epoxy formulations?
A: Dosage depends on the resin type, desired gel time, and final performance requirements, but SM2016 is generally used at low concentrations—typically ranging from 0.1% to 2% by weight relative to the epoxy resin—and often requires optimization through small-scale trials.
Q5: Does SM2016 require special handling or safety precautions during formulation?
A: As with most amine-based curing agents, SM2016 should be handled in well-ventilated areas using appropriate personal protective equipment (PPE), including gloves and eye protection. It is not classified as highly sensitizing, but prolonged skin contact should be avoided to prevent potential irritation.
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