English
Español
tiếng việt
русский
Highly reactive melamine-formaldehyde resin with balanced cure speed and pot life.
Excellent compatibility with acrylic, polyester, and alkyd resins in solventborne systems.
Delivers superior hardness, chemical resistance, and gloss retention in cured films.
Low formaldehyde emission profile, supporting compliance with stringent environmental regulations.
Good storage stability under recommended conditions (cool, dry, sealed container).
Automotive OEM and refinish topcoats requiring high durability and appearance.
Industrial maintenance coatings for metal substrates in architectural and agricultural equipment.
Appliance coatings demanding excellent chip resistance and oven-cure performance.
General-purpose coil coatings where rapid crosslinking and film integrity are critical.
| Chemical Type | Melamine-formaldehyde crosslinker |
| Product Form | Liquid |
| Appearance | Clear to slightly hazy, colorless to pale yellow liquid |
| Solvent Content | Approx. 70–75% (isobutanol / butanol blend) |
| Non-Volatile Content (NV) | 25–28% (by weight, 120 °C, 60 min) |
| pH (10% solution in water) | 7.5–9.0 |
| Viscosity (25 °C, Brookfield RV) | 50–150 mPa·s |
| Primary Applications | Crosslinker for thermosetting industrial coatings |
Q1: What is the primary function of CYMEL 3717 in coating formulations?
A: CYMEL 3717 functions as a highly reactive melamine-formaldehyde crosslinker, designed to enhance cure speed, hardness, chemical resistance, and thermal stability in thermosetting coatings—particularly in low-bake and ambient-cure systems based on hydroxyl- or carbamate-functional resins.
Q2: Is CYMEL 3717 suitable for waterborne systems?
A: Yes, CYMEL 3717 exhibits good compatibility and stability in many waterborne acrylic, polyester, and polyurethane dispersions, especially when formulated with appropriate co-solvents and pH control. Its low formaldehyde content and hydrolytic stability support performance in environmentally driven aqueous applications.
Q3: How does CYMEL 3717 compare to conventional high-methylol melamines in terms of reactivity and storage stability?
A: CYMEL 3717 offers a balanced profile: higher reactivity than standard alkylated melamines due to its optimized methylolation and etherification, while maintaining improved shelf life and reduced tendency toward premature gelation—especially in acidic or high-solids formulations.
Q4: What types of catalysts are typically recommended for optimal cure performance with CYMEL 3717?
A: Weak organic acids (e.g., p-toluenesulfonic acid derivatives) or latent acid catalysts are commonly used to accelerate curing without compromising pot life. Selection depends on the base resin, cure schedule, and end-use requirements—strong mineral acids are generally avoided to prevent excessive viscosity build or instability.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
