BULL-BOND® TOP SEAL™ — Coverage Calculator

Calculates required gallons using the TOP SEAL™ “Application Rate and Film Thickness” table (ft²/gallon/coat).
Units: ft², gallons Rate: ft²/gallon/coat
Enter roof area. You can switch units below.
If m² is selected, it will be converted to ft² for the calculation.
Total gallons required — Includes coats and waste factor.
Total liters required — 1 gal = 3.785 L
Total pails required (5 gal) — 1 pail = 5 gallons
Note: Actual coverage varies depending on surface texture and application method.
TOP SEAL™ application rate table
Used for the calculator (ft²/gallon/coat, per coat).
Surface Rate (ft²/gal/coat) Wet mils Dry mils
Source: BULL-BOND® TOP SEAL™ Technical Data Sheet (Oct. 2022), “Application Rate and Film Thickness” table.