High-Silica Fiberglass Filter Mesh

High-Silica Fiberglass Filter Mesh (GH Series)

Engineered from high-purity, high-silica content fiberglass woven fabric with advanced surface treatment. Designed for filtering molten aluminum, copper, and other non-ferrous metal alloys at elevated temperatures up to 1000°C — exceeding standard alkali-free fiberglass in thermal resistance.

Applications

• Aluminum alloy wheel hubs, engine blocks, and cylinder heads
• Copper alloy castings and precision non-ferrous components
• High-temperature differential pressure, low-pressure, and gravity casting processes
• Effective removal of oxide inclusions, gas bubbles, and slag from molten metal

Advantages

• Superior thermal stability — withstands higher operating temperatures than standard fiberglass filters
• Maintains structural integrity throughout the entire casting cycle
• Reduces porosity defects and inclusion-related scrap rates
• Flexible shapes: bowl, disc, square, cap, and conical forms available
• Custom sizes and apertures available on request

Specifications

• Applicable processes: Differential pressure casting, low-pressure casting, gravity casting
• Mesh aperture: 0.8, 1.0, 1.2, 1.5, 2.0, 2.5 mm
• Max operating temperature: 1000°C
• Continuous working time: ≤30 min
• Gas evolution: ≤30 cm²/g

Complies with China National Standard GB/T 25139-2010. OEM and custom orders welcome.