Forum

The advantages of hot melt adhesives are mainly manifested in the following features:

1 Fast curing speed, good bonding energy and flexibility.

Hot melt adhesives can cure and bond within a couple of tenths of a second to some seconds, and have the traits of melting when heated, and bonding when cold. This enables packers to use hot melt adhesives to use higher-speed production lines, and improve production while reducing faulty products, which is convenient for steady and automatic high-speed operations, and has a lower cost.

2 The ability of hot melt adhesive is stable

It's not affected by modifications in temperature and humidity from morning to night in the working environment, which ensures the bonding fastness and eliminates the inherent adhesive peeling problem of packaging machinery.

three Hot melt glue does not comprise water and some other fluxes

Its solids may be made into blocks, films, strips or pellets, which are simple to transport and store. It has a long service life, eliminates damage and waste, and is easy to use.

four The hot melt adhesive does not comprise solvents and doesn't emit dangerous and poisonous fumes, is just not easy to burn or explode, is safe, and will not cause secondary pollution to the environment and endanger human health.

5 The hot melt adhesive forms a glue layer that is resistant to water and moisture, and may form a reliable glue even in a humid environment.

6 Hot melt adhesive could be repeatedly melted and bonded

If the hot melt adhesive coated on the adherend can't be bonded on account of cooling and solidification, it may be reheated for bonding operation, so it is especially suitable for bonding with some special process requirements parts, such because the restoration of some cultural relics.

7 A wide range of bonding objects, both bonding and sealing, no drying process, simple bonding process, and good financial benefits.

8 Good gloss and gloss retention, wonderful shielding.

Of course, hot melt adhesives also have some disadvantages, as described beneath:

1 There are limitations in performance, inadequate heat resistance, limited bonding power, and poor chemical resistance. Modification of the hot-melt adhesive base polymer can improve the heat resistance and power of the hot-melt adhesive.

2 Coating by hand, the impact will not be good, and the waste of rubber is difficult to control. Subsequently, it is necessary to be equipped with particular equipment to melt and apply glue, equivalent to a hot melt gun, which is inconvenient to make use of and restricts its use and promotion.

3 Bonding is typically affected by climate and seasons. Generally, the wettability is poor in winter, the curing becomes slower in summer, and the melting time is shortened when the wind is strong.

If you treasured this article and you also would like to acquire more info regarding PSA pressure sensitive adhesive i implore you to visit our own web-site.