MILLACO MILLA HARDENER AC 820 HS EXTRA FAST 1 LITRE

The MILLACO HARDENER AC 820 HS Extra Fast is an extra fast-curing hardener designed for use with high solids (HS) automotive refinishing systems. It is typically used in combination with MILLACO 2K clearcoats, primers, and base coats to accelerate the drying process. Here's a general guide on usage:

1. Mixing Ratio: Follow the recommended mixing ratio as per the base product you’re using (typically 2:1 with clear coats or 4:1 with primers). Always refer to the product's technical data sheet (TDS) for precise ratios.

2. Application: Mix the hardener thoroughly with the paint or primer and apply according to the desired thickness in coats. The extra-fast hardener speeds up drying time, making it ideal for spot repairs or small area applications where quick handling and overcoat times are needed.

3. Flash-Off Time: Allow for a short flash-off time between coats, typically around 5–10 minutes. The exact timing may vary based on ambient temperature, so adjustments may be needed in cooler or warmer environments.

4. Drying Time: The AC 820 HS Extra Fast hardener significantly reduces drying times, typically allowing for handling or further work within 15-30 minutes at room temperature. Force drying (with infrared or low-bake ovens) further shortens curing times.

5. Storage: Keep the hardener in a cool, dry place and tightly sealed. Avoid exposure to moisture and direct sunlight, as it can affect the performance of the hardener.

6. Safety Precautions: Always wear protective gear, including gloves, masks, and goggles. Ensure good ventilation when working with the product, as it contains volatile organic compounds (VOCs).

Using the extra-fast hardener ensures high-quality finishes on small repairs with reduced waiting times, which can improve workflow in high-turnaround body shops.