热熔胶

PUR, PO, EVA

Hot melt adhesives are solvent-free formulations which become liquid when heated and are applied in a molten state.

To achieve a good degree of wetting, the substrates have to be joined within the open time. Hot melts are characterised by a very rapid build-up of internal strength upon cooling. They are physically hardening thermoplastic adhesives which are already present in their final chemical state.

Modern hot melt adhesives in our portfolio impress with excellent processing characteristics and a broad spectrum of adhesion to different materials.

Short setting times facilitate a fast downline processing and therefore fast production speeds.

We are ready to supply a wide range of different high-performance adhesives with special properties which provide an ideal process solution for even the most specific and complex requirements.

特点

Hot melt adhesives provide the following benefits:

100 % solids content, free of solvents and water
High production speeds due to short setting times
A wide range of adhesion to different materials
They can compensate for surface irregularities
Smooth surfaces due to a water-free bonding
Elastic bondlines
Can be reactivated by heat and therefore be used for precoating
Joints can be opened by heating

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热熔胶

产品系列、性能与应用

PUR Hot Melt Adhesive

基材: Polyurethane
包装选项: Granulate, block, drum
品牌: Senta MELTAX, Jowatherm

PUR hot melt adhesives are industrial adhesives based on reactive polyurethane technology and are applied in a molten state. During application, the molten adhesive wets the substrate to provide initial bonding, then reacts with ambient moisture and undergoes chemical curing. Once fully cured, the adhesive transitions from a thermoplastic to a thermoset structure, developing high mechanical strength.

Thanks to their high resistance to heat, moisture, and chemicals, PUR hot melt adhesives form durable bonds suitable for demanding operating conditions. Their ability to deliver high bonding performance at relatively low application weights supports efficient and cost-effective manufacturing processes.

PUR hot melt adhesives are available in different formulations to meet specific process requirements in terms of application temperature, open time, and curing rate. When used with the appropriate application equipment and under suitable storage conditions, they provide durable, long-lasting, high-performance structural bonds.

They are widely used in woodworking, furniture, textiles, automotive, filtration, packaging, and construction industries. PUR hot melt adhesives provide strong adhesion between dissimilar materials and reliable performance on a wide range of substrates, including wood, metal, plastics, composites, and fabrics. They are commonly used in applications such as lamination, profile wrapping, edge banding, panel manufacturing, and assembly.

PO Hot Melt Adhesive

基材: Polyolefin (based on different monomers, e.g. ethene, propene, butene, hexene)
包装选项: Granulate, block, drum
品牌: Senta MELTAX, Jowatherm

PO hot melt adhesives are industrial adhesives based on polyolefin thermoplastic polymer technology and are applied in a molten state. After application, they physically solidify upon cooling and develop bond strength without requiring any chemical curing reaction.

Thanks to their polyolefin-based structure, they can provide good thermal stability, moisture resistance, and aging performance. Properties such as viscosity, open time, and setting speed can be formulated to meet the requirements of different manufacturing processes.

With suitable formulations, effective adhesion can be achieved on a variety of substrates, including low-surface-energy plastics. Compared with EVA-based hot melt systems, certain PO formulations can provide higher heat resistance, improved flexibility, and thermal stability. When the appropriate product and application temperature are selected, PO hot melt adhesives provide fast, efficient, and long-lasting bonding performance for industrial applications.

They can be used in packaging, hygiene products, furniture, textiles, filtration, automotive, and a wide range of assembly applications. Their rapid initial bond development and suitability for high-speed production lines provide significant advantages in automated and continuous manufacturing processes.

EVA Hot Melt Adhesive

基材: Copolymer based on ethylene vinyl acetate
包装选项: Granulate, block, drum, pillow
品牌: Senta MELTAX, Jowatherm

EVA hot melt adhesives are thermoplastic adhesive systems based on ethylene vinyl acetate copolymers. When heated, they melt and reach the required application viscosity; after being applied to the substrate, they physically solidify upon cooling and form a bond. Since they do not require chemical curing, they are well suited for high-speed manufacturing processes and continuous production applications.

The vinyl acetate content of the EVA polymer, together with the resins, waxes, and additives used in the formulation, determines key adhesive properties such as flexibility, viscosity, and adhesion performance. Rapid initial bonding and short setting times provide significant process advantages on automated production lines where high manufacturing speeds are required.

Depending on the formulation, properties such as application temperature, open time, setting speed, flexibility, and heat resistance can be adjusted to meet different process requirements. When the appropriate product, application temperature, and process parameters are selected, EVA hot melt systems provide fast, efficient, and cost-effective bonding performance for industrial applications.

They can be used to bond a wide range of materials, including paper, cardboard, wood, textiles, and various plastic substrates. Thanks to their flexibility and good adhesion properties, they are widely used in packaging, furniture manufacturing, edge banding, bookbinding, paper converting, textile applications, and general assembly.