Advantages: Precise dimension tolerance Good mechanical strength Chemical stability and corrosion-resistant for molten aluminum Phosphate-free, no pollution for environment Reduce defects Increase yield rate Easy to use Technical parameters: Material: alumina foam filter/sic foam filter/zirconia foam filter Pore density: 8 to 60ppi Porosity: 80 to 90% Maximum working temperature: Alumina: 1,100 degrees Celsius SiC: 1,500 degrees Celsius Zirconia: 1,700 degrees Celsius Bending strength: Alumina: >0.6mPa SiC: >0.8mPa Zirconia: >1.0mPa Compression strength: Alumina: >0.7mPa SiC: >0.9mPa Zirconia: >1.2mPa Thermal shock resistance times/1,100°C: >6 times Different sizes and styles are available Quality Approvals Green Product Service Small Orders Accepted Experienced Staff Prompt Delivery