KaVo Kerr - Compound Sticks. Kerr Impression Compound comes in cakes and sticks: the cakes are of a convenient size for full or partial impressions and the sticks are great for copper band impressions or for adding to the periphery of an impression or custom tray. Each color has a controlled working temperature for a specific use.

Working Temperatures Color Coding:

• Soft Green: 122-124 degrees Fahrenheit
• Gray: 130 degrees Fahrenheit
• Red: 130-132 degrees Fahrenheit
• Black and white compounds have been discontinued