PlasterMix YY Casting Powder
Plastermix YY is an all-Yttria based plaster-forming mixture, which on merely adding water and stirring, becomes like Plaster-of-Paris that can cast into silicone forms to make “investment” molds or porous shapes or even be applied like stucco to firebrick.
$70.00 – $220.00
Key Attributes
- Uses Yttrium Oxide as the cementitious phase for forming plaster
- Readily forms slurry with working behavior like Plaster-of-Paris
- Slurry can be cast for forming shapes or “investment” molds
- Provides mixing/working time of over 10 minutes before setting begins and up to an hour before completely setting up as plaster
- Heating to 800-1400 C provides a well-bonded, free-standing shape
- Sandable after drying or firing
- Yields crack-free thick dried or fired pieces
- Water-based, safe and easy to use or cleanup
- Contains no Refractory Ceramic Fiber (RCF), no sulfur, no silica
Ideal Uses
- Forming “investment” molds for casting very reactive molten metals
- Providing a stable porous (typically1,2 50-65% porous, with pore diameter 0.5-2 microns) refractory part based on Yttrium Oxide
- Forming a weakly-bonded, highly-stable refractory stucco/plaster on firebrick and porous substrates