TECHNOMELT hotmelt adhesives from Henkel for low-pressure molding
Under the Technomelt brand, adhesive manufacturer Henkel produces an outstanding hot-melt adhesive that is processed using a low-pressure injection molding process.
This article explains the properties of Technomelt hot melt adhesives, how the low-pressure injection molding process works with them and which criteria you should pay attention to when selecting the right Technomelt hot melt adhesive.
Properties of the Technomelt hot melt adhesive
Technomelt (formerly Macromelt) hot melt adhesives are a product line from adhesive manufacturer Henkel for industrial bonding and encapsulation. Technomelt adhesives consist of
Essentially, encapsulations with Technomelt can be carried out in just three steps; no curing is required. Excess material can be reused, which not only saves material costs, but also protects the environment. These hot-melt adhesives are processed using the low-pressure injection molding process (also known as low-pressure forming ), which is considered a more efficient and faster process than conventional casting.
Specifically, Technomelt is used by low-pressure molding to encapsulate electronic components, assemblies and printed circuit boards. The latter is also known as PCB protection. The manufacturer Henkel states that fine and sensitive circuits are not damaged by this method. Encapsulation protects the encapsulated parts from environmental influences. Technomelt is also used for encapsulating cable harnesses and wiring.
Henkel-Technomelt’s low-pressure molding compound solutions are used in the following areas and industries, among others: electronic components, medicine, energy automation, industrial automation, heating technology, ventilation technology, air-conditioning technology, lighting.
Advantages of the low-pressure injection molding process with Technomelt at a glance:
- Very short processing cycles
- No mixing of components, as only one component
- Curing not required
- Increased throughput
- Low labor costs
- Material with low viscosity
- High temperature resistance
- High impact resistance
- High solvent resistance
- Suitable for sensitive electronic parts
- Precise encapsulation
- Waterproof encapsulation
- Reusability of surplus material
- waste-saving
You may also be interested in the following technical article: “Potting compounds and protective coatings from Henkel to protect printed circuit boards“
How does the low-pressure injection molding process work?
The encapsulation of electronic components using the low-pressure injection molding process with Technomelt hot melt adhesive simplifies the encapsulation process. This is because the encapsulation of components is essentially possible in three steps with Technomelt:
- Insert: electronic component is inserted into a mold
- Molding: Encapsulation process at low pressure between 30 seconds and 2 minutes
- Test: the molded parts are tested
Choosing the right hot melt adhesive
The following criteria should be taken into account when selecting the right hot melt adhesive for a particular application:
- Liability
- Hardness
- Elasticity
- Temperature resistance
- Resistance to extreme temperature cycles
- Solvent resistance
- UV resistance
- Chemical resistance
- Environmental resistance
- Resistance to high humidity
- Covering requirement with removable mask
Henkel offers various selection tools to help you find the right Henkel product for your application. These Henkel selection tools can be found under the following link: Product Selector Adhesives
You might also be interested in our published article: “Henkel Selectors: Easily find the right Henkel Electronic material online“
You can buy the following Technomelt hotmelt adhesives online from the Swiss Henkel distributor abovo:
- TECHNOMELT PA 646
- TECHNOMELT PA 678
- TECHNOMELT PA 6208 BLACK
- TECHNOMELT PA 2692
- TECHNOMELT PA 2302 BLACK
- TECHNOMELT AS 8998 (removable mask)
Advice on Henkel hotmelt adhesives of the Technomelt brand
We at abovo will be happy to advise you on which Technomelt hot melt adhesive is suitable for your application.
Abovo has been an authorized distributor of Henkel Adhesive Technologies products for over 15 years; initially in the Henkel Electronics division and since 2022 also in the Henkel Industry division.
The best way to contact the Henkel Technomelt experts at abovo is by telephone or e-mail:
- Telephone number: +41 32 552 44 44
- E-mail: info@abovo.ch
