Many brands of neutral glass glue have had a similar phenomenon, after careful testing and repeated experiments to confirm that the quality of the glue is not a problem. What is the specific situation, let's have a look at Omann's introduction!

Because there are two kinds of neutral glue, alcohol type and ketone oxime type, and alcohol type glue in the curing process of methanol will release gas (methanol starts to volatilize at about 50℃), especially when the sun or high temperature reaction is more intense. In addition, concrete and metal window frames are difficult to breathe, and the summer temperature and humidity are high, the curing will be faster, the gas released by the glue can only run out of the never completely cured rubber layer, and the bubbles of different sizes will appear on the cured rubber strip. And ketone oxime type neutral glue in the curing process will not release gas, will not produce bubbles. But the disadvantage of ketone oxime type neutral glue is that once the technology and physical treatment is not good, there is a chance of shrinkage and cracking phenomenon when it is cold in the curing process in winter, and the technology is good, there is no such phenomenon. Of course, the neutral glue of ketone oxime type is slightly more expensive than alcohol type.

In the past did not appear similar phenomenon because in the past construction units in this place with little silicone glue, generally often use acrylic waterproof sealing materials, so the phenomenon of silicone neutral foaming is not very common; In recent years, silicone sealant has been widely used, which has greatly improved the grade of engineering quality. However, due to the ignorance of material characteristics, improper material selection has caused the foaming phenomenon of sealant.

The following points should be noted to solve such problems:

It is prudent to do a local use test first to observe whether it meets the needs of use (generally two or three days after sizing can see the reaction);

Two, distinguish the use of time and base material type, choose the appropriate neutral adhesive use: summer choose ketone oxime type, winter choose alcohol type;

3. Keep the construction surface clean and dry;

Four, summer sizing should avoid high temperature period (above 35℃) and direct sunlight, generally in the evening is more appropriate;

Five, similar projects can be tracked by the manufacturer's technical personnel.

The above information is provided by neutral glass glue manufacturers. Auman environmental protection is committed to establish a stable product market and open up new sales channels, strict sales management, brand services, to provide customers with the best pre-sale, sale, after-sales service, received around the market recognition. Welcome to telephone consultation!