The UV adhesive manufacturer will introduce the curing time of UV glue and the reasons for whitening.

　　The manufacturer introduces the curing time of UV adhesive and the reasons for whitening.

　　UV special adhesiveManufacturer: About the smell of UV adhesive

　　Generally, all adhesives have a smell, and UV adhesive is no exception. It usually has a certain odor, which is a normal phenomenon. If the UV adhesive has no smell at all, or has an acceptable smell, users should not take it lightly. Some manufacturers of UV adhesive add masking agents or fragrances to the UV adhesive. These additives are also chemicals, and users should pay attention to take protective measures to avoid discomfort and allergies caused by operators making phone calls for extended periods. It is recommended to maintain good air circulation in the workplace where UV adhesive is handled. If cost is not a concern, UV adhesive manufacturers can choose raw materials to produce products with relatively low odor, but it is very difficult to achieve completely odorless.

　　UV special adhesiveManufacturer: How long is the curing time of UV adhesive?

　　In this regard, we need to distinguish different situations. Generally, there are two cases: one customer hopes for a short curing time and high production efficiency, while another type of customer accurately grasps the complete curing time of UV adhesive to achieve the desired bonding or fixing effect. The different raw material components in the UV adhesive formula directly affect the curing speed of the UV adhesive. Additionally, the type, power, irradiation distance, and irradiation range of the UV curing lamp used all have a certain relationship. Customers need to determine this through multiple experiments. If the irradiation distance and range are the same, a higher intensity UV curing lamp will result in a shorter curing time, and vice versa. It should be noted that a faster curing speed does not necessarily mean better quality; this is a misconception. In fact, under certain quality conditions of UV adhesive, the curing speed can be appropriately reduced to achieve a more perfect bonding effect. We will provide curing parameters based on the characteristics of the product and the type of bonding materials for customer reference. Customers can make adjustments to a certain extent based on specific situations to obtain normal usage experience data, and changes should not be made arbitrarily during the production process.

　　UV special adhesiveManufacturer: Why does UV adhesive turn white after curing?

　　This phenomenon often occurs in the glass industry. The whitening phenomenon is actually caused by tiny bubbles generated in the adhesive layer itself. Because the adhesive shrinks during the curing process, if the thickness of the adhesive layer is uneven or the hardness is too high, the internal stress generated by the shrinkage cannot be released. Over time, tiny bubbles will appear, which is the whitening phenomenon we see, until the bonded material falls off. The methods to solve this problem are:

　　1. Choose flexible UV adhesive.

　　2. Control the adhesive layer of the adhesive evenly.

　　3. Use a low-power UV lamp for preliminary curing to slow down the curing speed of the adhesive, and then use high-power UV equipment for deep curing after positioning. If the adhesive cures too quickly, it will increase the shrinkage rate of the adhesive.

　　The introduction of UV special adhesive manufacturers ends here today. If anyone needs UV special adhesive, please  Contact Us.