Many customers will encounter many problems in the process of using methyl silicate to produce sodium methyl silicate and potassium methyl silicate organic silicon waterproofing agent, such as: how to choose equipment, what is the process, and what needs to be paid attention to. We will explain the precautions for the production of sodium methyl silicate and potassium methyl silicate organic silicon waterproofing agent based on customer feedback.
1. The most suitable temperature for the production process is 92°C, and it is sufficient to keep it at 90-95°C during the process;
2. Feeding sequence: you can first mix methyl silicic acid with part of the water, turn on the stirring, slowly add potassium hydroxide or sodium hydroxide in batches, and then add the remaining amount of water according to the dissolution situation (after basic dissolution) Make up;
3. Equipment attention: 1) Temperature-resistant equipment such as stainless steel, enamel reaction kettle, or stainless steel barrel with stirring device; 2) Stirrer: must be equipped with agitator or motor for stirring;
4. Safety items: The temperature is high during the reaction, and the feeding process must be slowly fed, because sodium hydroxide and potassium hydroxide will release a lot of heat during the process of dissolving in water;
5. Silicone waterproof agent can be used together with sodium nitrite antifreeze during winter construction.
6. Silicone waterproof agent is a general chemical. During storage, transportation and use, construction personnel shall be careful not to splash it on the face, especially in the eyes, otherwise they shall immediately wash it with a large amount of water or ask a doctor for treatment. During operation, wear labor protection gloves, protective glasses and work clothes to avoid the agent from contacting the skin.
7. Silicone waterproof agent this agent shall not contact zinc, aluminum, tin and other active metals during transportation and use, and shall not be stored in iron metal containers, so as to avoid product deterioration and container corrosion caused by chemical reaction.