The Basics Of Epoxy Dispensing
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Types of epoxy dispensing units
Epoxy dispensing units are easy to set up and use within minutes. Epoxies are stronger and more resistant to temperature variations and chemicals than many other potting and adhering materials. Some types of epoxies can withstand extreme temperatures, which makes them an ideal choice for potting and encapsulation. There are different types of epoxy dispensers that allow the resin to be applied quicker and more efficiently. For smaller projects, epoxy can also be applied by hand by spreading the resin across the work surface with a paintbrush.
One of the simplest types of epoxy dispensing units is the manual handheld dispenser shaped in the form of a gun. Tubes of epoxy are fitted into the dispenser, which mix together and dispensed onto the work surface when the trigger is squeezed. There are several types of automatic epoxy dispensing units such as the pneumatic dispenser and other systems that feature a head that can be focused in multiple angles over a work table. These types of dispensers are capable of drawing specific shapes and deposit epoxy with precision. Automatic dispensers are generally used in industrial settings.
Electronic dispensing machines
Epoxy adhesives are made by combining an epoxide with a polyamine, which triggers a chemical reaction on heating. The polyurethane resin and hardener are mixed thoroughly during the dispensing process. In large scale manufacturing process, epoxy dispensing is controlled by electronic dispensing machines that are computer regulated and precision controlled. This allows minute adjustments to be made to the quantity and location of the adhesive for the highest quality output. These units also eliminate the risk of human error which could otherwise prove costly during the dispensing process.
Tips for epoxy dispensing
It is essential to keep the dispenser and potting equipment clean prior to storage to prevent any traces of epoxy blocking the tip of the dispensing unit. Clogged equipment is usually cleaned by cutting any hardened polyurethane resin with a knife or sharp blade. Some epoxy dispensing units feature a cover for the tip that keeps the tubes sealed when not in use. Care must be taken not to over-dispense epoxy adhesives while any excess must be wiped away instantly prior to the thermosetting process curing the adhesive.
Epoxy curing ovens
An epoxy curing oven is the ideal way to speed up the curing process. The epoxies must be left to cure and then heated. It is important to consider the heating capacity of the oven, the internal space and capacity, and actual space consumed prior to selecting a curing oven. One of the biggest advantages of using a curing oven is the cost, which is significantly reduced since there is no need to install new production lines and run additional shifts to cope up with demand.
