Recomended Burnout Cycle

 

Investment Preparation

To ensure high-quality casting, we strongly recommend closely following the specifications provided by your chosen investment brand. These specifications include:
  -  Water-powder ratio (use a scale to measure the water and powder)
  -  Mixing process and time
  -  Duration to leave the flask before placing it in the oven
  -  Burnout cycle
  -  Casting and pressure control

 1. Washing the Models
-  Wash the models for 3 minutes with dirty/used alcohol to remove excess resin, then for 3 minutes with clean alcohol (at least 90% pure). Finally, dry them by blowing air, using an 
air compressor if available.
- Check the models for uncured resin. If any are found, wash and dry them again.
- Models should not be exposed to alcohol for more than 6 minutes.
- Ethyl alcohol is the preferred choice, but isopropyl alcohol can also be used.
- Models should be cast as soon as possible, ideally within 2 hours. If casting later, store the models in a dark, sealed plastic bag. (Exposure to light & oxygen will cause shrinkage)

 2. Investment Process
- Follow the manufacturer's instructions for the water-powder ratio, mixing process, and 
other specifications.
- Ensure the investment is thoroughly vacuumed by applying the vacuum process while 
vibrating the investment.
- Place the casting tree as far from the flask's surface as possible (Do not place the printed 
model near the flask's wall).

3. Recommended Burnout Cycle

- Allow the flask to settle for at least 3 hours before placing it into the furnace.
- In the final step of the cycle, after reducing the temperature to 1112°F within 1 hour, keep the flask in the furnace at 1112°F degrees Celsius for an additional hour before pouring the metal.
- Use fresh metal for casting. Metal that has been reused more than 3-4 times should not be used.

At PowerResins we’re committed to helping you achieve casting excellence. If you have questions or need personalized guidance, feel free to reach out to us at support@3bfabus.com.