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Highly efficient low-temperature curing catalyst for amino–melamine and urea–formaldehyde resins.
Enables rapid gel time reduction without compromising pot life stability in acidic resin systems.
Low volatility and reduced formaldehyde emission potential compared to traditional p-toluenesulfonic acid (p-TSA) derivatives.
Excellent compatibility with waterborne and solventborne industrial coating formulations.
Non-hygroscopic solid form ensures consistent dosing and improved handling safety.
Automotive OEM and refinish coatings requiring fast-throughput baking cycles.
Industrial coil coatings for pre-painted metal substrates.
Wood furniture and panel finishes based on melamine–urea–formaldehyde (MUF) crosslinkers.
Can coatings for food and beverage containers where low extractables are critical.
General-purpose thermosetting powder coatings with amino crosslinkers.
| Chemical Type | Sulfonic acid derivative (non-volatile, solid) |
| Product Form | Free-flowing crystalline powder |
| Appearance | White to off-white granular solid |
| pH (1% aqueous suspension) | 1.8–2.2 |
| Active Content | ≥ 98.0 wt% (as supplied) |
| Decomposition Onset Temperature | ≥ 150 °C (TGA, 10 °C/min, N₂) |
| Solubility | Freely soluble in alcohols, glycol ethers, and aromatic hydrocarbons; slightly soluble in water |
| Storage Stability | Stable for ≥ 24 months at ≤ 30 °C in sealed original container |
Q1: What is the primary function of CYCAT VXK 6364 in coating formulations?
A: CYCAT VXK 6364 is a highly efficient acid catalyst designed to accelerate the crosslinking reaction between melamine-formaldehyde resins and hydroxyl-functional binders—commonly used in thermosetting coil and can coatings. It promotes rapid cure at lower baking temperatures while supporting excellent film hardness and chemical resistance.
Q2: How does CYCAT VXK 6364 compare to traditional p-toluenesulfonic acid (p-TSA) catalysts?
A: Unlike conventional strong acid catalysts, CYCAT VXK 6364 offers improved latency and reduced volatility, enabling better pot life stability and reduced odor during formulation and application. Its tailored reactivity profile helps minimize premature gelation and supports more consistent cure performance across varying line speeds and oven profiles.
Q3: Is CYCAT VXK 6364 compatible with water-based systems?
A: CYCAT VXK 6364 is primarily formulated for solvent-borne and high-solids thermosetting systems. While it may be incorporated into certain co-solvent-stabilized aqueous hybrids, it is not inherently water-dispersible or hydrolytically stable. Compatibility in water-based media must be verified case-by-case through lab-scale testing and pH monitoring.
Q4: What handling precautions should be observed when working with this catalyst?
A: As an acidic material, CYCAT VXK 6364 requires standard industrial hygiene practices: use in well-ventilated areas, wear appropriate PPE (gloves, safety goggles, and protective clothing), and avoid contact with skin or eyes. It is not classified as highly corrosive under GHS but should be handled with care to prevent irritation or formulation degradation due to unintended acidity exposure.
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E-mail: wangxingqiang@ericwchem.com
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