If the adhesive has cured before use

If the adhesive has cured before use, there may be several possible causes, such as the adhesive has expired, improper storage conditions, or exposure to curing trigger conditions.

In this case, consider the following steps:

1. Verify whether the adhesive has expired: Check the packaging or label of the adhesive to confirm whether it has expired. If it is out of date, it is recommended not to use the adhesive, but to purchase a new adhesive.
2. Check storage conditions: Make sure you have stored the adhesive correctly. Adhesives usually need to be stored in a dry environment, away from light and in an appropriate temperature range. Adhesives may cure prematurely if storage conditions are not appropriate. Please follow the advice in the product manual for correct storage.
3. Contact the manufacturer: If you are confused about the curing problem of adhesives, it is recommended to contact the manufacturer of adhesives. They can offer professional advice and guidance to solve problems or provide alternative solutions.
   

When handling cured adhesives, be careful to avoid touching or touching the cured material to avoid causing any discomfort or injury.