How to make mold in muti-piece ?

Do you know how to make mold in muti-piece,if you are interested in it ,please follow me. 　　First prepare the necessary tools (cutter,ruler,brush and scissors,etc.) to clean the product. Brush a release agent evenly on the product by using cleaner or soapy water.Then fixing the product on sludge. 　　Muti-pieces mold:the product is easy to de-mold through separating it into two or more pieces. Parting line is positioned at the highest point of the product and drawn from the not obvious bonding site. 　　The portion below the parting line is filled with comfortable hardness of sludge,which should be heap closely to the product. 　　Cut grooves evenly in the clay about 1 centimeter away from the product which could close the mold easily and avoid dislocation. 　　Select the right type of silicone rubber according to the complexity of the product structure and size. 　　Like this product with complex structure and sophisticated parts, low viscosity and low hardness of silicone rubber should be applied .Here leaves our HY-630 Silicone. 　　Mix the the silicone rubber and curing agent with 2% -5% proportion and vacuum pumped to -0.1mpa,which help the mold out of bubbles and improve quality. 　　If no vacuum dryer,reducing the ratio of the curing agent to extend the curing time, which help the release of excess air bubbles. 　　After vacuum pumping,brush the first silicones evenly on the original mold with the thickness of less than 1mm, until covering the product and sludge thinly.After the first layer of silicone to be cured ,a second layer of silicone is brushed. Ratio of the second layer should be higher than the first curing agent for silicone layer.The curing time is controlled within 5-8 minutes. 　　Paste an absorbent gauze to the silicone when it's about to be cured after 2-3 times brushing,in order to enhance the tear strength of silicone rubber. And then evenly brush on a layer of silicone rubber again. 　　Resin outer mold can be done after the complete curing of silicones. 　　First evenly coat with the first layer of resin, and then evenly spread a second layer of glass fiber cloth, followed by a third layer of resin. 　　The other half mold could be done after the outer mold and silicone rubber fully cured. 　　Remove the sludge, clean the parts of the sludge heaped, and then repeat the above steps. 　　De-mold:the entire outer mold and silicone mold can be removed after fully curing. 　　Check the silicone mold and trim the edge of the outer and silicone mold by using hand grinding mill or scissors. 　　Using a drill machine to connect the portions in the mold punch, and fix them with nails. 　　So far, the silicone molds are completed ,and can be put into production after 24 hours. 　　Shenzhen Hongye Jie Silicone Factory professional development, increase production of liquid silicone molding, liquid silicone molding plus, plus liquid silicone rubber molding silicone products welcome customers and dealers to negotiate,expert advice hotline:86-0755-89311348, you can also e-mail us info@szrl.net.