What is the operating method for RTV-2 mold adhesive?

1. Vacuum exhaust bubble treatment: After the silicone gel and curing agent are evenly mixed, the vacuum exhaust bubble process should be carried out. The vacuum extraction time should not be too long, and under normal circumstances, it should not exceed ten minutes. If the vacuum extraction time is too long, the silicone gel will immediately solidify, causing cross-linking reactions, making the silicone gel into pieces and unable to be painted or poured, which wastes the silicone gel. The silicone gel can only be poured into the trash can and re taken for processing.
2. Brushing or operation process: The silicone that has been evacuated and discharged through bubbles is brushed or poured. Pour onto the product (note: products or models that need to be replicated before pouring silicone must be coated with release or isolation agents). Then apply the silicone onto the product evenly, and after 30 minutes, stick a layer of gauze and weft cloth to increase the strength and tension of the silicone. Then apply another layer of silicone and stick a layer of gauze and fiber weft cloth, so that after two passes, it will be ready. Only by doing so can the service life and turnover times of the developed silicone mold be significantly improved, which can save costs and improve efficiency.
3. The production of external mold: The general method and materials used are to surround the mold with adhesive boards or wooden boards. One method is to fill the mold cabinet with gypsum, and the other method is to use resin coating. After applying a layer of resin, a layer of fiberglass cloth is pasted, and then coated and pasted again. Repeatedly applying two or three layers can complete the external mold of the mold.liquid rubber for molds
4. The operation method of injection mold or injection mold: Injection mold or injection mold is used for relatively smooth or simple products. Without mold lines, it saves labor and time. It is to surround the product or model you want to copy with a rubber or glass plate, pour the vacuum filled silicone directly onto the product, and after the silicone is dried and formed, take out the product, The mold is formed (note: Injection molds usually use soft silicone to make the mold, which makes demolding easier and does not damage the products inside the silicone mold).