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Highly reactive melamine-formaldehyde resin offering rapid cure kinetics at moderate baking temperatures.
Excellent compatibility with alkyd, polyester, and acrylic resins for broad formulation flexibility.
Delivers superior hardness, scratch resistance, and chemical durability in thermoset coatings.
Low formaldehyde emission profile, supporting compliance with stringent environmental and safety regulations.
Consistent batch-to-batch performance ensured by BASF’s controlled manufacturing process.
Automotive OEM coil and can coatings requiring high gloss and corrosion resistance.
Powder coating formulations for metal furniture and household appliances.
Industrial maintenance coatings for metal substrates exposed to harsh environments.
General-purpose decorative and protective finishes on pre-treated steel and aluminum.
Electrodeposition (EDP) primer co-binders for enhanced crosslink density and film integrity.
| Chemical Type | Melamine-formaldehyde condensate |
| Product Form | Liquid, solvent-free |
| Appearance | Clear to slightly yellowish viscous liquid |
| Non-Volatile Content (120 °C, 60 min) | 85–90 wt % |
| Viscosity (25 °C, Brookfield RV, spindle #3, 20 rpm) | 2,000–4,000 mPa·s |
| Acid Number | ≤ 5 mg KOH/g |
| Primary Applications | Thermosetting coatings for metal substrates |
| Key Features | Rapid cure, low formaldehyde release, high crosslink efficiency |
Q1: What is the primary function of Luwipal 072 in coating formulations?
A: Luwipal 072 functions as a crosslinking agent, enhancing hardness, chemical resistance, and thermal stability in thermosetting acrylic, polyester, and alkyd-based coatings—particularly in industrial baking applications.
Q2: Is Luwipal 072 compatible with hydroxyl-functional resins?
A: Yes, Luwipal 072 is specifically designed to react efficiently with hydroxyl groups under heat, making it well-suited for use with hydroxyl-terminated acrylics, polyesters, and cellulose derivatives in coil, can, and general metal finishing systems.
Q3: How does Luwipal 072 compare to formaldehyde-free amino resins?
A: Luwipal 072 is a melamine-formaldehyde based resin and contains formaldehyde-derived structural units; it is not classified as formaldehyde-free. For formaldehyde-free alternatives, BASF offers other resin families such as certain urea- or carbamate-modified systems—consult technical support for suitable options aligned with regulatory and formulation goals.
Q4: What are typical curing conditions when using Luwipal 072?
A: Effective crosslinking generally occurs at elevated temperatures, typically between 140 °C and 180 °C, with dwell times ranging from 10 to 30 minutes depending on substrate, film thickness, and catalyst presence. Acid catalysts (e.g., p-toluenesulfonic acid) are commonly used to reduce required temperature and time.
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