JONCRYL® U 4501 is a self-crosslinking, aliphatic polyurethane dispersion designed for use in wood topcoats. The dispersion is characterized by its final hardness and exceptional scratch resistance. The dispersion is free of both triethylamine and NMP. Additionally, the low minimum film forming temperature and low solvent demand allows formulators to achieve low VOC coatings. With its broad acrylic dispersion compatibility, JONCRYL U 4501 can be easily blended with WB acrylic resins such as JONCRYL 9530-A to achieve higher levels of scratch, mar, and abrasion resistance, without many of the potential drawbacks of PUD blends.

Features & Benefits

• Self-crosslinking
• Excellent compatibility with acrylic dispersions
• Enables simplified formulations
• Low VOC and solvent demand
• NMP and TEA-free
• Excellent grain enhancement
• High scratch resistance
• High final hardness
• High chemical resistance, particularly solvent resistance
• High abrasion resistance

Check out the Joncryl U 4501 Value Card for more performance features

Performance Data

By blending JONCRYL U 4501 with JONCRYL 9530-A, formulators can achieve exceptional scratch resistance, while maintaining great final hardness, block resistance, and dry time.

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