FH4500 Slow Hardener for Polyurethane Acrylic Coatings

Enhance the usability of your two-component polyurethane acrylic coatings with the FH4500 Slow Hardener. This specialized aliphatic polyisocyanate hardener is formulated to slow down the cure rate, providing painters and applicators with extended open time and working time. This is particularly beneficial for large surface areas, high-temperature environments, or when complex detailing requires more time for blending and application.

By adjusting the reaction speed, the FH4500 ensures a smoother application process with reduced risk of premature gelation or skinning. It maintains the excellent chemical and UV resistance properties inherent to aliphatic systems, ensuring long-lasting durability and color stability for both industrial and decorative finishes.

• Extended Working Time: Ideal for large jobs or high ambient temperatures where standard hardeners cure too quickly.
• Aliphatic Technology: Provides superior UV stability and resistance to yellowing compared to aromatic alternatives.
• Smooth Application: Reduces the risk of brush marks and ensures a uniform, defect-free finish.
• System Compatibility: Specifically designed for use with polyurethane acrylic base coatings.