Sealant Calculator

Your details

Rectangular joints are gaps sealed flush (window frames, expansion joints). Triangular fillets are corner beads where the cross-section is a right-angled triangle.
Total length of the joint or seam to be sealed.
m
Width of the gap. For a triangular fillet this is the leg length of the triangle (the bead diameter).
mm
How deep the sealant is applied. Industry guidance: depth should equal width up to 12 mm, then half the width for wider joints. Not used for triangular fillets (depth = width).
mm
Extra sealant to account for start/stop losses, practice beads, and uneven joints. 10-15% is typical for experienced applicators; 20-25% for irregular surfaces or first-time use.
%
Select the container size sold in your region. For custom sizes, enter the volume below.
Leave at 0 to skip the cost estimate.
$
Volume needed (with waste)Medium job
666.7mL

Total sealant volume after waste adjustment

Volume needed (net)600mL
Packages required3
Coverage per tube5.2
Net volume (mL)600
With waste (mL)666.7

You need 3 cartridges/tubes for this job.

  • You need 667 mL of sealant total (including 67 mL waste allowance).
  • That means buying 3 cartridges/tubes.
  • One package covers about 5.2 m of this joint profile.

Next stepFor gap fills, press a foam backer rod into deep joints (over 12 mm) before sealing to control depth and reduce sealant use by up to 50%.

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