Hot Melt PSA
Hot melt adhesives are adhesives based on Thermoplastic elastomer. These are characterised by the fact that they do not completely set, but remain permanently tacky. In this case, it is important to achieve sufficient wetting between the pressure-sensitive adhesive and the substrate. For this reason, this group of adhesives is known as "PSA – Pressure Sensitive Adhesive".
The various applications for pressure-sensitive adhesives can generally be divided into three areas:
Precoating: e.g. self-adhesive equipping of shipping cartons. Here, the hot melt adhesive is applied, provided with a protective cover and the bonding can follow at a later time.
Inline adhesive process: e.g. lamination of insulation materials. In this case, the hot melt is applied and the bonding occurs immediately.
Removable bonding: e.g. small sample bags in magazines. The hot melt adhesives have a reduced tackiness with equally high adhesion.
Bases for hot melt adhesives are thermoplastic polymers. A polymer is a chemical compound that consists of branched molecules or chain molecules.
"Thermoplastic" stands for the property of the plastic to become deformed at certain temperatures. In the case of hot melt adhesives, this means to melt when heated and to become hard again on cooling. Pressure-sensitive adhesives are one-component adhesives which physically bond.
In the case of some TPE adhesives, the adhesion is already so great in the cold state that adhesion is established even with light contact. The adhesion on the materials to be bonded reaches the PSA by the contact pressure – the higher the contact pressure, the better the adhesion produced.
Advantages of PSA hot melt adhesives
Very good adhesion to low-energy surfaces, such as PE
Solvent-free
Universally applicable – wide range of adhesion
Elastic adhesive joints - high level of elasticity
High production speed due to short setting time
Harmless to health and not subject to marking
Limits of PSA hot melt adhesives
Low resistance to solvents and plasticizers
Limited heat resistance
Creep tendency with tension bonding
ABOUT US
Zhejiang Good Adhesive Co., Ltd was established in 1996 in China, covers an area of more than 10000 square meters with annual output of 30000tons of environmental friendly hot melt adhesive series products base on EVA, polyolefin, elastomer, polyurethane, PA and animal protein.
Professional team
We have our own lab and R&D team, can provide you technical supports at any time.
Wide application range
The main application industries of hot melt adhesive include book binding, product packaging, filter, furniture, automobile, medical, aerospace, rail transit and other industries.
30000+Tons
Annual output
8
Production Line
100+M
Annual output value
500+
Business partner
1950-01
Material Office of Zhejiang Rezzsearch Institute of Chemcal Industry.
1990-11
Zhejiang Yida Adhesive Co.,Ltd. established.
2009-10
Zhejiang Good Adhesive Co.,Ltd. established.
2020-08
Guangzhou Gute Adhesion Co.,Ltd established.
2021-01
Completion of share reform.
Establish Shanghai Gute New Material Intelligent Manufacturing Research and Development Center.
Complete the renovation of equipment intelligent manufacturing -3.0, with an annual production capacity of 18000 tons.
2022-04
Establishment of Branch Hubei Gute Chemical New Material Co.,Ltd.
2023-02
Establishment of Jiangsu Gute New Material Technology Co., Ltd.
Companies We Have as Clients
We are looking for a cooperative partner to expand our business.
