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Fast-reacting aliphatic amine-based curing agent enabling rapid gelation and short demolding times.
Excellent compatibility with standard liquid epoxy resins (e.g., DGEBA types) without phase separation.
Low viscosity (< 500 cP at 25°C) ensures easy metering, mixing, and air-release during processing.
Good flexibility and impact resistance in cured epoxy systems, reducing brittleness in structural applications.
Low volatility and reduced amine odor compared to conventional aliphatic amines, improving workplace safety.
Structural adhesives for automotive assembly and metal bonding.
Electrical encapsulants and potting compounds for PCBs and power modules.
High-performance coating systems for industrial flooring and corrosion protection.
Rapid prototyping and low-pressure resin transfer molding (RTM) composites.
Repair mortars and grouts requiring fast strength development under ambient conditions.
| Chemical Type | Aliphatic polyamine adduct |
| Product Form | Liquid |
| Appearance | Pale yellow to amber clear liquid |
| Viscosity (25°C) | 350–450 cP |
| Amine Value | 380–420 mg KOH/g |
| Density (25°C) | 0.92–0.95 g/cm³ |
| Flash Point (COC) | ≥ 110°C |
| Shelf Life (unopened, 25°C) | 12 months |
Q1: What is the primary chemical class of Kukdo 6350?
A: Kukdo 6350 is an amine-functionalized curing agent based on modified aliphatic amine chemistry, designed to provide balanced reactivity, low volatility, and improved compatibility with standard epoxy resins.
Q2: Is Kukdo 6350 suitable for ambient-cure epoxy systems?
A: Yes — it is specifically formulated for ambient- or moderate-temperature cure applications, delivering good pot life and reliable crosslinking without requiring elevated oven cycles, though thermal post-cure may further enhance final properties.
Q3: How should Kukdo 6350 be stored to maintain stability?
A: Store in tightly sealed original containers under dry, cool conditions (preferably below 30 °C) and protected from moisture and direct sunlight. Prolonged exposure to humidity or air may lead to surface skinning or reduced reactivity.
Q4: Can Kukdo 6350 be used in coatings requiring low VOC and good film hardness?
A: Yes — its low vapor pressure and efficient crosslinking behavior support formulating high-solids and low-VOC epoxy coating systems with good through-cure, adhesion, and mechanical hardness development.
Q5: What is the typical dosage range for Kukdo 6350 in epoxy formulations?
A: Dosage depends on the epoxy resin’s epoxide equivalent weight and desired performance profile, but it is generally used at low concentrations — typically ranging from 0.1% to 2% by weight relative to the base resin — and must be optimized via small-scale trials.
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