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Dri-RX^® HF is a drier accelerator and stabilizer designed to enhance oxidative curing while maintaining formulation stability. 

Developed for solventborne and waterborne systems, it works synergistically with metal driers to deliver faster dry times, improved process efficiency, and more reliable long-term performance. 

Why Rethink Your Drier System? 

In oxidative coatings, drying performance depends on the activity of metal driers such as cobalt and manganese. 

However, formulators often face challenges including: 

• Slow or inconsistent drying in thick film or hard-to-dry systems  

• Loss-of-dry over time due to hydrolysis or catalyst deactivation  

• Supply disruptions or performance gaps with existing accelerator technologies  

Traditional approaches may require higher metal loadings or reformulation—adding complexity and cost. 

Dri-RX HF was developed to enhance existing systems without those trade-offs. 

Based on internal testing in long oil alkyd systems, Dri-RX HF demonstrates strong performance versus standard formulations and competitive accelerators—delivering faster dry times at reduced dosage while maintaining hardness development. 

Key Takeaway: 

Dri-RX HF enables faster through-dry times, even at reduced dosage, while maintaining hardness and improving formulation stability. 

What the Data Shows 

• Faster dry times compared to control and competitive systems  

• Comparable hardness development without sacrificing cure performance  

• Effective performance at lower dosage levels (up to 66% reduction vs. competitive systems)  

• Strong performance across various drier technologies, including manganese and cobalt drier systems  

Why Drier Accelerator Performance Matters to Formulators

Faster Through Dry

Drier accelerators like Dri-RX HF accelerate oxidative curing, helping reduce total dry time—especially in thick films and challenging conditions. 

Improved Formulation Stability 

Metal driers can be protected from hydrolysis and deactivation, reducing the risk of loss-of-dry over time. 

Lower Dosage Efficiency 

Strong performance can be delivered at reduced loading levels, supporting cost and formulation optimization. 

Seamless Integration 

Dri-RX HF works with existing cobalt and manganese drier systems—minimizing the need for reformulation. 

Reliable Supply 

Dri-RX HF is produced in the U.S., supporting regional availability and supply continuity. 

Ready to Evaluate Dri-RX HF in Your System? 

Request a Sample  
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