1. When mixing silicone rubber raw materials, we first need to remove the blue plastic paper wrapped on the surface of the rubber block to ensure that there is no plastic paper adhering to the rubber block. Then, we can put the rubber block into the open mill;

2. At the beginning of rubber mixing, the thickness of the mixer should not be too large or too small. First, mix a small portion of the rubber blocks into the mixer until they are evenly mixed. Then, increase the thickness of the mixer and place the designated weight of rubber blocks in sequence. When the mixed silicone rubber is completely refined and uniformly, and the rubber material is completely attached to the roller, we can add silicone masterbatch, color, and other auxiliary materials, and then repeatedly refine through triangular packaging;

3. When adding vulcanization, if it is a water-based vulcanizing agent, it should be slowly poured in at once and not poured at once. This can easily cause a large amount of splashing of the vulcanizing agent during mixing, which can affect the ratio of the vulcanizing agent. Sometimes, the splashing of the vulcanizing agent can even splash into the mouth, nose, eyes, and ears, which can easily cause harm to the human body. If the vulcanizing agent splashes into the organs, simply rinse slowly and repeatedly with clean water; When adding paste vulcanization, it should be noted that the roller of the mixer should not be too hot. The cooling water should be turned on before adding the vulcanizing agent. Adding a paste like vulcanizing agent can be done in one go, but it is necessary to quickly cut the rubber material to quickly mix the vulcanizing agent with the blended silicone rubber. If the vulcanizing agent is allowed to repeatedly rub against the mixed silicone rubber without cutting the rubber material, it is easy to cause electrostatic explosion accidents. When adding paste like vulcanizing agents, fire extinguishers, fire blankets, and other fire-fighting equipment should be placed next to the workbench. Especially when adding paste like vulcanizing agents, caution should be taken, as improper operation can easily lead to combustion accidents;

4. When adding silicone masterbatch, you can first add a vulcanizing agent and then add the masterbatch, or add the masterbatch and then the vulcanizing agent. It is not recommended to add both at the same time. When adding silicone masterbatch, it should be continuously and repeatedly refined evenly. If the color of silicone masterbatch is not uniformly refined, the thickness of the mixer should be lowered, and then the rubber can be refined more finely;

5. After adding vulcanizing agents and colorants to the mixed silicone rubber, we should observe whether the rubber materials on both sides of the mixer are completely neat. If there is edge breakage on both sides of the rubber materials and the surface of the mixed silicone rubber has not been refined evenly, the rubber materials on both sides should be completely neat, with a smooth and flawless surface without bubbles, and can be packaged and produced;

6. When packaging mixed silicone rubber, attention should be paid to whether the lower film paper is intact and neat, to avoid the film paper getting entangled in the mixed silicone rubber raw material during the packaging process. If manufacturers have the conditions, they can use double-layer film paper packaging during the packaging process to ensure that the silicone rubber material mixed after the film is produced does not get dirty;

7. If the rubber master is still a novice, there should be one more supervisor at the workstation to prevent the operator from accidentally getting their hands caught in the roller. If encountering unexpected situations, the emergency brake on the top of the mixer should be pulled down.

About HTV silicone rubber,Please check : IOTA General purpose grade HTV silicone rubber