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High reactivity with hydroxyl and carboxyl functional groups for rapid crosslinking.
Excellent compatibility with acrylic, polyester, and alkyd resin systems.
Low formaldehyde emission profile meeting stringent industrial VOC regulations.
Superior gloss retention and hardness development in cured thermoset coatings.
Good storage stability as a clear, low-viscosity liquid at ambient temperature.
Automotive OEM and refinish topcoats requiring high durability and appearance.
Industrial coil coatings for metal substrates exposed to outdoor weathering.
Appliance finishes demanding scratch resistance and chemical resistance.
Baking enamels for metal packaging and general-purpose metalware.
High-performance wood coatings where fast cure and low-bake conditions are critical.
| Chemical Type | Methylated melamine-formaldehyde resin |
| Product Form | Clear liquid |
| Appearance | Water-white to pale yellow, homogeneous |
| Solvent Content | Approx. 75–80% (isobutanol/butanol blend) |
| Non-Volatile Content (NV%) | 20–22% at 125°C for 60 min |
| Viscosity (25°C, Brookfield RV) | 150–350 cP |
| pH (10% solution in water) | 7.8–8.5 |
| Primary Applications | Crosslinker for hydroxyl-functional resins in thermosetting coatings |
Q1: What is the primary function of CCP BR-220 in coating formulations?
A: CCP BR-220 is a melamine-formaldehyde based amino resin designed to act as a crosslinking agent, enhancing hardness, chemical resistance, and thermal stability in thermosetting coatings—particularly for metal and wood applications.
Q2: Is CCP BR-220 compatible with common hydroxyl-functional resins?
A: Yes, it exhibits good compatibility with hydroxyl-containing binders such as polyester, acrylic, and alkyd resins, enabling efficient co-crosslinking under standard baking conditions.
Q3: How should CCP BR-220 be stored to maintain stability?
A: Store in tightly sealed containers at temperatures between 5 °C and 30 °C, away from direct sunlight and strong oxidizing agents. Prolonged exposure to freezing or excessive heat may affect viscosity and reactivity.
Q4: Does CCP BR-220 require acid catalysts for curing?
A: While it can cure thermally at elevated temperatures, optimal crosslinking kinetics and film performance are typically achieved with conventional acid catalysts such as p-toluenesulfonic acid or blocked sulfonic acids.
Q5: What is the typical dosage range for CCP BR-220 in finished coating systems?
A: Dosage depends on formulation requirements and target performance, but it is generally used at low concentrations—typically ranging from 0.1% to 2% by weight relative to total non-volatile content.
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