Hot die grouting and cold die grouting of ceramic wine bottle mold are two different technological methods. According to China Popular Science Network, they have the following differences in mold manufacturing technology:

1. temperature control: hot mold grouting is carried out at high temperature, usually between 50℃ and 70℃, while cold mold grouting is carried out at room temperature. Hot-mold grouting uses the effect of temperature to improve the fluidity and rapid curing of grouting materials, while cold-mold grouting relies on the properties of materials and additives to achieve curing.

2. Performance of grouting materials: Thermosetting resin materials, such as thermosetting polyurethane resin, are usually used for hot die grouting. This material cures rapidly at high temperature, which can provide excellent mold surface quality and durability. Cold mold grouting usually uses resin materials cured at room temperature, such as epoxy resin or polyester resin.

3. Grouting speed and curing time: Because hot die grouting is carried out at higher temperature, the viscosity of grouting material is low and the curing time is short. This enables hot mold grouting to complete mold manufacturing more quickly. In contrast, cold mold grouting needs longer time to ensure the full reaction and solidification of grouting materials.

4. Cost and equipment requirements: Hot die grouting usually requires heating equipment and control system to keep constant temperature, which will increase certain equipment and energy costs. However, cold mold grouting is relatively simple, and it only needs to be carried out at room temperature without additional equipment.