1. Instant Bonding

Instant adhesives do not require heating or pressurization during use. They are characterized by fast curing and high bonding strength. The tensile force that a 6.45 - square - centimeter bonding surface can withstand is sufficient to lift a car. Such adhesives have greatly promoted the continuous production assembly line.

2. Bonding of Structural Components

The bonding of structural components refers to the bonding of objects that can withstand long - term loads and large stresses, such as the bonding of structural components of buildings, vehicles, ships, aircraft, spacecraft, etc. It can increase the speed of navigation. At the same time, it makes the surface of the bonded parts smooth and flat, which is beneficial to navigation. It also has properties such as sealing and corrosion prevention.

3. Liquid - state Sealing and Leak - Stopping

Some adhesives are liquid with fluidity at room temperature. When applied to various connection or parts that need to be sealed, they form an elastic adhesive layer, which can replace ordinary gaskets and play a sealing role.

4. Underwater Bonding

It is manifested in the construction of dams or bridges, the shipbuilding industry, and the national defense industry. It can connect pre - fabricated parts on land with components in water and underwater, thus greatly simplifying the construction process and accelerating the construction progress.

5. Hot - melt Bonding

Hot - melt adhesives are solids. They need to be heated and melted into a fluid state before they can be used for bonding. After cooling, they return to a solid state, forming a firm bonded part. Hot - melt adhesives are formulated from thermoplastic polymers with the addition of tackifiers, etc.