Switching converts existing inputs automatically.
mL
Common sizes:
290
300
310
600
828
%
Covers laps, spillage, tooling, and material shrinkage.
Runs / Joints
Enter each unique run, length, and bead geometry.
| # | Shape | Length m | Diameter mm | Width mm | Depth mm | Area mm² | Volume mL | Coverage / Tube m | Tubes | Actions |
|---|---|---|---|---|---|---|---|---|---|---|
| Totals | 0.00 | — | 0 | |||||||
Example Data
Typical coverage per tube for a 300 mL cartridge with round beads.
| Bead Diameter (mm) | Coverage per Tube (m) |
|---|
Formulas Used
Cross‑Sectional Area
- Round bead: A = π·(d/2)²
- Rectangular joint: A = width·depth
- Triangular fillet: A = ½·width·depth
Metric shortcut: when dimensions are in mm and length in m, volume (mL) equals area (mm²) × length (m).
Volumes and Coverage
- Row volume: V = A × L
- Adjusted volume: Vadj = V × (1 + waste%)
- Tubes required: N = ceil(Vadj / cartridge)
- Coverage / tube: Ltube = cartridge / A
Imperial uses in² for area, ft for length, and converts in³ to mL.
How to Use This Calculator
- Select units and your cartridge volume.
- Click Add Row and choose a shape.
- Enter length and bead dimensions for each run.
- Set waste/shrinkage percentage to suit site conditions.
- Review totals, then download CSV or download PDF.
FAQs
Estimates assume consistent bead geometry and full substrate contact. Real outcomes vary with surface porosity, temperature, application method, and tooling. Apply a prudent waste factor to reduce shortfall risk.
Enter any volume in milliliters. Common sizes include 290–310 mL, 600 mL sausage packs, and 828 mL bulk tubes. Coverage scales linearly with volume for a given bead size.
Round beads suit simple sealing. Rectangular joints model deep gaps. Triangular fillets approximate tooled corners over backer rod. Choose the geometry that matches the final cross‑section after tooling.
For smooth, non‑porous surfaces, 5–10% is typical. For rough or absorbent substrates, complex joints, or inexperienced applicators, consider 10–20% or more. Always verify on a small mock‑up first.
Keep a single unit system for consistency. This tool converts all rows when you switch systems. To avoid rounding drift, finalize units before entering large datasets.