PERBOND

Adhesive & Bonding Calculators

Free, practical tools for planning a bond — size how much adhesive you need, mix two-part epoxy on-ratio, estimate joint strength, adjust cure time for temperature, stretch a cartridge across a run, and design a lap joint that carries the load.

Adhesive Coverage Calculator

Work out how much adhesive a job needs — from a bond area and glue-line thickness, or a bead diameter and length — as a volume in millilitres and an approximate mass.

Epoxy Mix Ratio Calculator

Split a batch of two-part epoxy into Part A and Part B by weight or volume at any ratio, with a warning when the batch is large enough to shorten pot life.

Bond Strength Calculator

Estimate the load a lap-shear joint can carry from its bonded area and the adhesive's shear strength — or work backwards to the minimum area for a target load.

Cure Time Calculator

Adjust a base cure time for temperature using the rule that cure roughly halves for every 10 °C rise — see how much warmer or cooler conditions change the wait.

Coverage per Cartridge Calculator

Turn a cartridge or container volume into the linear metres of bead you can run at a chosen diameter, or the area you can cover at a chosen spread thickness.

Lap Joint Designer

Size a single-lap joint — the overlap length needed to carry a required load at a given adhesive shear strength and joint width, with overlap-to-thickness guidance.