Phosphate investment made specifically for burning out printed or milled resin patterns. Fiber-reinforced to strengthen the resistance of the investment to cracking and finning during the burnout of RPD or crown-and-bridge patterns for castings or pressed-ceramic restorations. High-performance material that offers a wide expansion range and optimal fit of the casting. Also features a rapid burnout technique to reduce processing time and increase productivity. Its fluid consistency promotes both ease of investing and smooth casting surfaces, and it divests easily.