We have found that there are basically two methods of adhesion used in production; a “hot press” process and "cold press."
The hot press method, using a heated glue, takes less than 20 seconds, results in a weaker bond, and can lead to delamination in time.
The cold press process, using an adhesive that can be applied at room temperature, entails at least 15 seconds of cooling time, followed by 2 to 3 hours of protecting time. It’s a costlier process for factories, as it takes longer, and requires state-of-the-art equipment and a sterile environment rivaling that of a surgical bay.
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