Many novices use the mold silicone mold when the mold is turned to the product, and the silicone mold is torn without using it a few times, and most people don't know what causes it, let Hongtu analyze it for you.
First, it is possible that too much silicone oil is put into the silicone mold, and the silicone oil will destroy the molecular weight of the silicone and make the mold silicone undurable.
Second, if the delicate and exquisite small product objects are more complex, then if the hardness of the silicone to open the mold, there will be the possibility of tearing, thinking that the hard silicone is very brittle, easy to break and other possibilities, then again, on the contrary, if the large model sculpture with small hardness of silicone to make the mold, the result will definitely not be satisfactory, because the silica gel is too soft, its degree of force will be greatly reduced, tearing, tearing and other phenomena, then the sculpture crafts turned out of the mold will also be deformed and not good-looking, did not achieve the purpose of being turned over.
Third, there may be some improper processes will produce the phenomenon of mold burning, after the curing agent of peroxide is added to the unsaturated polyester resin product, a large amount of heat will be generated when the resin reaction is encountered, and the curing time of the general unsaturated polyester resin is 3 minutes, so it is necessary to demould as soon as possible after 3 minutes, so as not to prevent the mold from not producing the phenomenon of mold burning.
Do you think the above analysis is correct, and whether your mold silicone is torn, you can discuss it together.