Process of Making Cultural Stone Moulds

Prepare the necessary tools to mold species ( small culture stone ) is fixed on a flat wood or glass , to clean the surface of the mold species on four wooden tiles or bricks around and then the formation of mold species and use Hot melt adhesive seal gaps. Thus , culture stone mold making silicone finished ready to begin the next step.

　　With a ruler on the inside of the painted brick around about 1cm high scale line , the height is the thickness of the silicone mold , and then planted on a uniform mold brushing a layer of release agent.

　　Weighing silicone, according to the product structure , complexity , size, culture stone mold silicone to select the model , which is produced using leaves MC RTV2066/2088 Silicon rubber, 2% -5% of the proportion of curing agent and stir well pumping vacuum .

　　Vacuum pump should be noted that not too long, generally not more than 10 minutes , you can read the table to -0.1mpa , case no vacuum machine , you can reduce the proportion of curing agent to extend curing time , in order to drain more bubbles .

　　The first layer is poured into the silicone mold species in the first layer than the second layer, the thickness of silica gel , the silica gel with a smooth tool after gently on the surface covered with a layer of glass fiber mesh, wire mesh and then covered with fine side or glass fiber network to enhance hardness , tear of the silicone , making culture stone made ??out of silicone mold without distortion , good rally . Then use the tool gently smooth , then pour the second layer of silica gel ( to be evacuated ) . ( Note: If you put barbed wire , it is recommended to be cured after the first layer of silicone into the second layer of silica gel . )

　　After the silicone is fully cured ( 3-4 hours ) , removed the surrounding brick , stone silicone mold the culture removed , cut with scissors sides excess silicone . At this point , the whole process ends after 24 hours culture stone silicone mold can be put into production use.