
Premium Sodium Bentonite for Superior Foundry Sand Bonding Strength. High Strength Bonding: Superior foundry sand bonding with high wet compressive strength >90 and hot wet tensile strength >2.5. High Montmorillonite Content: Ensures high temperature resistance, good thermal stability, and improved casting surface finish. Wide Application Range: Suitable for drilling mud, sewage treatment, cat litter, cosmetics, and various building materials. Stable Raw Material Supply: Owns 90 million tons of high-quality bentonite mines guaranteeing supply for over 30 years. High Production Capacity: 10 fully automatic production lines with an annual capacity of 300,000 tons. High Quality Control: Qualified rate exceeds 99.8% for 5 consecutive years using high-precision electronic control systems. Customizable Packaging: Standard 25kg bags available with custom packaging content and type options upon request. Free Sample Availability: Provides 1-5 kg free samples of multiple models delivered directly by express for bulk purchase testing.