Analysis of reasons for non-curing of liquid silica gel
Source: | Author:ZINCA | Published time: 882 days ago | 257 Views | Share:



When we use liquid silica gel to make silica gel molds, there will be no curing phenomenon, which will be caused by many factors. What are the reasons for the specific liquid silica gel not curing?Xinjia silicone for you to analyze:


1 too much curing agent or too little curing agent will affect the curing of silica gel.

Solution: Add the hardener according to the specified proportion, and see whether the instructions are volume proportion or weight proportion.


2. Different types of curing agent can not be mixed, and the tin component in the condensation silica gel will not react when the plastic of the molding mould is contacted.

Solution: Use the right type of hardener.Operating tools are also classified, not mixed.If it is the operation of molding silica gel, do not come into contact with condensation products.


3. Silica gel and curing agent are not evenly stirred.

Solution: Silica gel and hardener should be thoroughly stirred when handling, paying attention to the bottom of the container.


4 incomplete curing (not dry) only occurs on the contact surface of the mother die, other parts of the curing is intact.

Solution: A layer of isolation film is played on the surface of the mother mold to prevent the components in the mother mold that are not conducive to the curing of silica gel from contacting the mold silica gel.


5. The temperature is too low can also cause no curing, and the silica gel and curing agent will not react when the operating temperature is below 0 degrees.

Solution: When the temperature is 20-30 degrees Celsius is the ideal mold silicone curing temperature.


The above is the new best silicone according to previous experience summed up the liquid silica gel does not cure, pay attention to us, get more solutions to the problem.