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There are two main reasons for the bubbling phenomenon of alcohol based silicone adhesive: internal and external.

1. External reasons: caused by construction conditions, mainly due to excessive temperature difference or high surface temperature during construction.

2. Internal cause: The dealcoholized silicone adhesive itself is caused by the release of methanol during the curing process of the dealcoholized adhesive, which has a lower boiling point. Therefore, when the construction surface temperature is too high, the released methanol cannot be effectively evaporated in a timely manner, and it will vaporize inside the colloid, forming bulging and bubble phenomena.

The phenomenon of easy bubbling of dealcoholized silicone adhesive has not been completely resolved. According to the vulcanization incentive of this product, the commonly used methods in the industry to reduce or reduce bubbling are:

1. Control the amount of crosslinking agent added, as the more crosslinking agent is added, the greater the methanol release and the easier it is to bubble.

2. Reduce the surface drying time of the colloid, allowing sufficient time for the released methanol to evaporate.

3. No good absorbents have been found yet for the use of methanol absorbents.

4. During construction, avoid exposure to sunlight.