Ketone oxime transparent glue (including light-colored glue) will turn yellow to varying degrees after curing for about twenty days, and the yellowing tendency will increase with the increase of time. Here, yellowing of ketoxime transparent glue does not exist in individual manufacturers. The problem is a product-wide industry problem, including foreign manufacturers. After analysis, it may be due to the addition of a coupling agent with an amino group.

Although yellowing is an inherent defect of current products, the curing environment has a greater impact on yellowing. First, ketoxime type transparent glue cannot coexist peacefully with acid glue and alcohol glue, and it is used with other two types of glue. Within three days together, the ketoxime-type transparent glue will severely turn yellow. In addition, placing the cured ketoxime transparent gel in a dark and humid corner will also cause it to turn yellow until it turns red.