Silicone adhesives are used in electronic products to seal, fix, and fill, but to play their performance role, the colloid must be completely cured as a whole, and it is necessary to ensure that the silicone adhesive is fully cured. The process needs to avoid some influencing factors.

1. Sizing humidity
The silicone adhesive described here is a one-component condensation type silicone adhesive. Its curing process requires the condensation reaction of moisture in the air. If there is a lack of moisture or too low moisture, it will lead to the condensation reaction speed. Slow down, resulting in the inability to cure according to the required time. For example, at 55% humidity, the 24H deep curing thickness is 4-5mm. Since the on-site ambient humidity is only 30%, the curing depth will not reach 4-5mm. If the thickness of the glue is required If it is 4mm, it will lead to the failure of preliminary molding.

2. Sizing thickness
The curing process of silicone one-component adhesive needs to go through several stages of surface drying, skinning, deep curing, initial overall curing, and complete curing. Under the same environmental conditions, the thicker the thickness of the glue, the more time it takes to complete the curing stage. The longer it is, the more time it takes for deep curing. The thicker it is, the harder it is for the liquid glue inside to contact the air, and the duration of curing will be prolonged. Therefore, the same type of product, used in the same environment, and different sizing thickness, the required curing time will also be Different.


3. Sizing performance
Colloid performance, what we want to explain here is the curing speed or strength. Generally, the faster the surface drying speed, the stronger the curing strength of the adhesive, the overall curing speed will be relatively fast, so generally when choosing a fast curing silicone adhesive , you can choose according to the surface drying time and the skinning time.

Therefore, it is very important to understand the significance of deep curing of silicone one-component adhesives, which can avoid and prevent the phenomenon that the internal colloid does not cure when the product reaches the end customer.