DAM & POND SEALING
Bentonite quantity calculator
Enter your treatment area and choose an application rate.
Get an instant estimate in kilograms, tonnes and bulk bags.
Compare all application rates
Quantities for 1,000 m². All bag counts are rounded up.
| Rate | Bentonite required | 1.2-tonne bags |
|---|
A quantity estimate, not a sealing guarantee.
The calculation is treatment area in m² × application rate in kg/m². Square-foot entries are converted to m² first. Lower rates are available for comparison, not as a recommendation to reduce treatment. Choose 35 or 40 kg/m² if you want to calculate a higher material allowance.
Soil conditions, the cause of leakage and installation affect the treatment required. Confirm your application rate and method before ordering. No allowance is added for losses or measurement uncertainty beyond the rate you select and whole-bag rounding.
Read the application guidance