There are as many adhesive solutions as there are industries, products and applications. One example of this adhesive system is the UL approved electrical potting compound. This shock-resistant, vibration-resistant product is helpful in the electrical industry. It excludes moisture and prevents corrosion. Known to be effective and reliable, the electric potting compound is made up of an efficient adhesive system.
For most types of potting applications, what is normally uses is low viscosity adhesives. This type usually reduce the possibility of air bubble formation within the pot itself. The popular choices are therefore modified epoxies or two-component ones. UV-adhesives are also a popular choice since it offers a quick cure.
Types of Electrical Potting Compounds
The electrical potting compound is based on the principle of potting. A potting compound is an adhesive that is used to fill recesses. Pots are used in electronic circuit boards in order to protect its more sensitive parts against moisture, thermal shock, impact or chemicals. These small parts include diodes and resistors as well as transistors and microchips. Information storage and efficiency of retrieval highly depend on these parts.
Here are some examples of the most popular and the best electrical potting compounds.
- SAT-U-82,000 - This is a two-component system made up entirely of solid polyurethane. It has low to medium viscosity as well as low shrinkage. It is also highly resistant to thermal shocks and it contains a fairly flexible low exotherm.
- SAT-E-R358/438H - This is an epoxy system with two components and faster cure. It has low viscosity and free from solvents. This system is not only flame retardant but also has a flexible thermosetting product that is characterized by low shrinkage.
- SAT 9480 ULTRA CLEAR EPOXY - This one is another two-component adhesive that cures at room temperature. You can even make artistic creations with this particular product. Not to mention, this electrical potting compound is actually very strong and durable and yields a coating that looks crystal-clear.
Some Final Reminders
Some requirements of a good adhesive actually include low shrinkage and low level of outgassing. They are also highly resistant to both chemicals and ordinary moisture. These adhesives also have formulations that are non-corrosive.