How to Prevent Common Epoxy Potting Problems.

If your industry relies heavily on epoxy potting to protect product components, you will understand the critical importance of accurate curing of epoxy materials to product quality. With the help of epoxy dispensers equipped with automatic glue dispensers from Xiaomao Automation, the quality of epoxy mixtures can be automatically improved (thus optimizing the overall quality of products). However, if you have not yet introduced epoxy dispensers or use them in a non-compliant manner, you may face a series of potential problems. This article will focus on these issues and explore effective prevention strategies.

Pollution Prevention and Control
When the epoxy potting effect is not as expected, contamination factors should be the first object to be investigated. Impurities such as oil, grease, dust, silicone and air can cause abnormal curing once they come into contact with the epoxy mixture. Preventive maintenance of the epoxy dispensing system of the automatic glue dispenser (including core components such as dispensing valves) is the key to ensuring accurate mixing ratio/load matching. At the same time, surface treatment and cleaning should not be ignored. On the basis of strict control of the mixing ratio, you must also be vigilant about the risk of cross contamination of release agents or silicones. In addition, it is recommended to perform vacuum degassing before metering/mixing/dispensing to eliminate the interference of air gaps on the proportion of mixing. Excessive humidity can also cause premature curing failure of parts, and vacuum degassing technology can effectively remove residual air in epoxy resin and provide lasting protection for the product.
Take the Xiaomao automated epoxy resin dispensing machine and metering system as an example. The system integrates vacuum degassing and vacuum potting functions. The vacuum chamber capacity is sufficient to handle dozens of workpieces at the same time. After vacuum degassing is completed, the potting operation can be completed efficiently without bubbles.

Temperature management
For certain epoxy resins, temperature control is critical. Temperature deviations may cause excessive curing speed and reduced performance. For certain adhesives, high temperature environments may cause abnormal polymerization and change the viscosity of epoxy resin, which in turn affects the quality of the final product. One of the advantages of Xiaomao's automated dispensing system is its high-precision control capability. In most cases, EXACT recommends preheating the parts to be potted rather than directly heating the epoxy resin.

Guarantee of dispensing consistency
Using Xiaomao's automated epoxy dispensing system can significantly improve dispensing consistency. However, equipment maintenance should not be ignored. Even if it is thoroughly cleaned before use, epoxy can still cause blockages if it cures inside the equipment. Once a blockage occurs, the material will not be evenly applied, which can cause problems such as mixed ratio errors. Therefore, it is necessary to regularly check whether the nozzles, valves and other components are unobstructed to ensure that the adhesive cures effectively. It is recommended to choose a rugged epoxy dispenser made for high-performance applications from Xiaomao Automation.

Setup Accuracy
Although automatic dispensing systems can greatly reduce epoxy problems, problems can still occur if the equipment is used improperly. For fixed ratio systems, the risk of setting errors is low. However, if the operator arbitrarily adjusts the equipment settings, it may cause curing problems such as mixed ratio errors. Therefore, it is necessary to ensure that parameters such as mix ratio settings, air pressure gauges, etc. are accurate, and check that all accessories and necessary components are operating properly.

Manual epoxy dispensing can affect product quality. This problem can be effectively avoided by introducing Xiaomao's automatic dispenser equipped with epoxy dispensers, which can be customized according to customer needs. For more information about Xiaomao's automated epoxy dispensing system, please contact +86 18924636120 today.