Sodium Bentonite 25kg Bag

Our civil engineering grade sodium bentonite is mined from premium Australian deposits and processed for maximum swelling performance. With a montmorillonite content exceeding 85%, this is the highest quality bentonite available for dam sealing, pond lining, bore hole grouting, and civil construction applications.

Each 25kg bag treats approximately 2.5 square metres at a 10kg/m² application rate for dam sealing. Ideal for smaller farm dams, garden ponds, bore hole sealing, and spot repairs.

Key properties:

• Montmorillonite content: >85%
• Swelling index: >24 mL/2g
• Fluid loss: <15 mL
• pH: 8.5–10.5
• Country of origin: Australia