Why is the molding silicone rubber mold oily?

Molding silicone rubber is generally named as two-part silicone rubber that vulcanizes at room temperature.Part A is a flowable liquid,part B is tin catalyst.   　　Mould making silicone rubber is used for industries such as toys, gifts, decoration, plate engrave, human replica, art crafts, resin crafts, poly resin crafts, unsaturated resin crafts, candle crafts, plastic crafts, stationeries, plaster crafts and Buddhist statue crafts.   　　But there are some questions which are often asked when customers ask for help for technical guidance.For an example,why is the silicon mold oily? In fact,the reason is very simple.The molding silicone rubber itself doesn’t contain any oil,so it won’t be oily. If the mold is oily, it may be because you add the compound silicone oil which is the compound of silicone oil and white oil.The white oil is not silicone oil but a kind of petrochemicals.   　　In order to avoid such problems, you can check by your observation before use the silicone oil.Pure silicone oil is a transparent liquid without any smell, but ungraded silicone oil smells bad and in a turbid liquid form.   　　If you have any question,please feel free to contact us:86-0755-89311348,or e-mail us: info@szrl.net.