Easily Dismantlable Adhesive | Nagase Chemtex Co., Ltd.

What is
an easy-to-disassemble adhesive?
Removal and
Disassembly Process
Properties
Comparison with
Existing Methods
Applications

Biroko

＼ Explained by Biroko! ／

Combines strong adhesion with easy removal.
Ideal for recycling and rework, as it allows parts to be peeled off cleanly and easily without damage.

01 What is an easy-to-disassemble adhesive?

An adhesive containing a special structure that maintains strong bonding performance under normal operating conditions but allows for disassembly and removal with minimal damage to substrates when removal is desired. Easy-to-disassemble adhesives enable separation of bonded materials from finished products or defective items during manufacturing processes, thereby promoting recycling and reuse.

Easy-to-disassemble technology represents a crucial technology for achieving a sustainable society. Nagase ChemteX is advancing the development of easy-to-disassemble adhesives that can be used with various substrate combinations such as ""resin-to-metal,"" ""metal-to-metal,"" and ""resin-to-resin"" bonding, which are utilized in next-generation mobility solutions, automotive applications (vehicle components), construction and building materials, medical devices, sporting goods, and electronic components. By enhancing recycling efficiency, we support corporate sustainability initiatives.

Achieving a circular economy through enhanced recycling and rework processes

Minimal damage to components

Minimal damage to components

Disassembly solution is also recyclable

Characteristics of Easy-to-Disassemble Adhesives

The disulfide bonds incorporated into the resin can be easily removed through repeated cutting and regeneration by a specialized disassembly solution, while still delivering the high bonding strength and excellent heat resistance required during normal use.

High Disassembly Performance

Superior Shear Bonding Strength

High Heat Resistance

Electrical Properties

※All characteristic values listed, except for data concerning easily removable adhesives, are provided as general reference measurements.
The listed values are for reference only and do not guarantee the performance of each material.
Performance may vary depending on conditions and environment; please verify thoroughly before actual use.

02 Process of Peeling and Disassembling
Easy-to-Disassemble Adhesive

Bonding

Provides strong bonding of glass plates during use

Immersion in disassembly solution

Simple peeling/disassembly achieved by immersion in solution

Disassembly

After disassembly, only clean substrates can be recovered with no adhesive residue

Disassembly Mechanism

The disassembly solution contains components that cleave disulfide bonds. When substrates bonded with the easy-to-disassemble adhesive are immersed, bond rearrangement occurs and the connections are severed. Once rearrangement takes place, regenerative components restore the disassembly solution to its active state. The regenerated solution then continues to cleave additional disulfide bonds. Through this repeated process of shortening molecular chains, the easy-to-disassemble adhesive becomes increasingly soluble in the disassembly solution solvent.

Also explained in our video (please watch when you have time)

Chapter

03 As an Alternative to Other Bonding
and Removal Technologies

Easy-to-disassemble adhesives offer various advantages over conventional bonding and removal technologies.
If you are considering replacing your current process, please consider our product.