The steps of how to make silicone molds

Do you know how to make silicone molds?Here I will tell you how to make it. 　　First of all, prepare all the tools you need, like ruler, cutter, brush and card board and so on. 　　After cleaning the original model, fix it on the (wooden) board, and then cover a layer of release agent on the surface of the original mold evenly. 　　Then put the Original molds into the Vacuum Pumping machines for the Vacuum Pumping . 　　When the first layer of the silicone cured after the Vacuum Pumping , then brush the second layer of silicone , the mix ration of the silicone rubber and catalyst for the second layer must be higher than the first layer , the cure time must be controled in 5-8 mins. 　　When the silicone rubber can’t  flowable after the send or third layer of the silicone , then we put a layer of fiberglass , which can enlarge the hardness and tear strength of the silicone molds  (generally , the fiberglass can’t more than 2 layers according to the size of your products .) 　　After the silicone rubber is cured , then we brush anther layer of silicone on the fiberglass , and waiting for curing . 　　After the silicone rubber is totally cured , take off the paperboard , take out the original mold .And then check the silicone mold, make the silicone molds more trim using scissors  then we can make the puter mold by gypsum 　　First ,Perpaer the hard paper board , then fix the board arong the original mold without any interspace , then pour the liquid gypsum into the mould , and waiting for curing .Take off the paper board after the gypsum cured , make the gypsum molds more trim using scissors 　　Cut the silicone molds into two piece ,pls note that , the molds need to be cut into toothing , so that the silicone molds will be hold-on better with each other 　　So the silicone molds will be finished,and it can be used after 24 hours. 　　Shenzhen Hongye Jie Silicone factory is specialized in silicone products and their production, research and development, and sales of Science and Technology Corporation. Has an excellent professional performance, superior quality, complete specifications. A wide variety of technical team of silicone rubber products. Welcome customers and dealers to negotiate, expert advice hotline :400 -779-4008, or you can email us info@szrl.net.