Application Example Glob Top
Precise Epoxy Dispensing for Reliable Protection
Glob Top potting protects highly sensitive components safely and reliably. External environmental influences or mechanical loads no longer have a negative effect on the components. A liquid resin matrix is used for the process. Usually an epoxy resin adhesive is used for this. The adhesive is then cured within a few seconds.
Application of epoxy resin / potting compound
Electronic devices are an integral part of our daily lives. In order to protect the printed circuit boards in the devices from damaging external influences, preeflow dispensing technology is called for: One application method for which our precise micro dispensers are particularly suitable is called Glob Top – a liquid encapsulation process.
The individual components must be protected from environmental influences such as dust, moisture, solvents or dirt, or from scratches or mechanical stress. Glob Tops help with this by coating semiconductor chips, for example, with a thin protective layer. The result is a flexible but strong encapsulation. When applying the special adhesives or encapsulants, the precise metering of the preeflow dispensers pays off: Because only exactly the desired area should be covered. No neighboring components or surfaces must be contaminated, and the resin must not run over the desired area. A precisely defined, repeatable potting quantity must be applied.
The epoxy resins, silicones, polyurethanes, or acrylates used are thixotropic materials whose viscosity is variable. They are available as 1-component or 2-component variants. The choice of dispensing material must be appropriate in terms of both insulation properties and electronic requirements. They differ, among other things, in their flexibility and adhesive strength. Curing takes place thermally or by means of UV light or visible light. More detailed information on the resins can be found, for example, on the panacol website or on the Henkel website.
A supplement to Glob Top dispensing can be Dam and Fill respectively Frame and Fill.
preeflow Glob Top advantages:
- Reliable protection
- Fast curing adhesive
- Precise application
Product tests and validation by preeflow
Help with the selection of dosing components and small dosing systems
Combination of complete dosing systems or dosing equipment
Publication of all tested materials with manufacturer’s approval
Test your products and applications via video conferencing
The 1-component dispenser: Your perfect partner for low to high viscosity dispensing.
The 2-component dispenser: Simple and precise dispensing of previously unattained small quantities.
The spray dispenser: Perfect spraying of fluids in the low to high viscosity spray range.
preeflow® – microdispensing in perfection
More than 25 years of experience in fluid dosing. ViscoTec distinguishes itself with its comprehensive know-how in dispensing technology. In 2008, this wealth of experience was expanded with the introduction of the preeflow brand. With success: For 15 years, preeflow has stood for precise and purely volumetric dispensing of fluids in small and very small quantities. All over the world, a wide variety of industries rely on preeflow products. Always following our philosophy: Smaller, more precise, economical.