PERBOND
Bond it right — epoxy ratios, joint design, cure timing, and the adhesive calculators every workshop needs.
From estimating how much adhesive to buy and mixing two-part epoxy on-ratio to sizing a joint, adjusting cure time for temperature, and stretching a cartridge across a run, PerBond pairs free hands-on bonding calculators with practical guides and an illustrated museum. Prep well, bond once.
Adhesive & Bonding Calculators
Free tools for every bond — adhesive coverage calculator, epoxy mix ratio calculator, bond strength calculator, cure time calculator, coverage per cartridge, and lap joint designer.
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 and approximate mass.
Epoxy Mix Ratio Calculator
Split a two-part epoxy batch into Part A and Part B by weight or volume at any ratio, with a warning when a big batch will shorten pot life.
Bond Strength Calculator
Estimate the load a lap-shear joint can carry from its area and the adhesive's shear strength, or 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 and doubles for every 10 °C drop.
Coverage per Cartridge Calculator
Turn a cartridge or container volume into linear metres of bead at a chosen diameter, or the area it covers at a chosen spread thickness.
Lap Joint Designer
Size the overlap length a single-lap joint needs to carry a required load at a given adhesive shear strength and joint width.
Lap Joint Efficiency Calculator
Shear concentrates at the ends of a bonded overlap, so doubling the length does not double the strength — see how much of your overlap is working, and when to add width instead
The Museum
Wander an illustrated museum built entirely from Wikipedia and Wikimedia Commons — browse its collections, each in its own gallery, purely for the pleasure of looking and learning.
Tour the museum →From the Journal
Guides on choosing the right adhesive, prepping surfaces, mixing and curing epoxy, and designing stronger joints — practical reading to pair with the calculators above.
The Ultimate Insight Into Multi-Surface Adhesives: Bonding Across Material Realms
The Ultimate Insight Into Multi-Surface Adhesives: Bonding Across Material Realms In an era where materials vary from metal alloys to advanced composites, the demand for versatile solutions has never been…
The Science Behind Rubber Adhesives: Innovations, Applications, and Industry Impact
The Science Behind Rubber Adhesives: Innovations, Applications, and Industry Impact Rubber adhesives are critical components across various industries, from automotive manufacturing to aerospace engineering. These specialized bonding agents offer exceptional…
The Science and Artistry Behind Plastic Bonding: A Deep Dive into PerBond Technology
The Science and Artistry Behind Plastic Bonding: A Deep Dive into PerBond Technology In an era where innovation meets practicality, plastic bonding has emerged as a revolutionary technique that bridges…
The Invisible Threads: Unraveling the Mysteries of Chemical Bonding
The Invisible Threads: Unraveling the Mysteries of Chemical Bonding In the intricate dance of matter that shapes our universe, chemical bonds serve as the invisible threads connecting atoms together. These…
The Science and Artistry Behind Epoxy Bonding: A Deep Dive Into Adhesive Excellence
The Science and Artistry Behind Epoxy Bonding: A Deep Dive Into Adhesive Excellence Epoxy bonding is a transformative process that has redefined how materials are joined across industries ranging from…
Fundamentals of Structural Bonding
The Science and Artistry Behind Structural Bonding: Innovations and Applications in Modern Engineering In an era where architecture and engineering push the boundaries of possibility, structural bonding has emerged as…
Keep Learning
Plain-language explainers on adhesive families, surface preparation, mix ratios and pot life, cure schedules, and joint design — everything you need to understand the numbers the tools produce and bond with more confidence.
Visit the Learn hub →