liquid silicone rubber

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Usage of liquid silicone rubber for mold making: molding silicone rubber is suitatble for Product duplication and mold manufacture Application liquid silicone rubber for mold making: 1. toys, gifts 2. decoration, plate engrave 3. human replica, art crafts, 4. resin crafts, unsaturated resin crafts 5. poly resin crafts, candle crafts, plastic crafts 6. stationeries, plaster crafts, Bunddhist statue crafts, etc. Features of liquid silicone rubber for mold making : a. good characteristics of easy-operation b.light viscosity and good flowability c. favorable tension d. low shrinkage e. no deformation f. high temperaure resistance, acid and alkali-resistance and ageing resistance Detaials of liquid silicone rubber for mold making: Place of Origin: Guangdong, China(Mainland) Brand Name: Hong Ye silicone rubber Model Number: HY620#, HY628#, HY638#, HY640# Payment & Shipping Terms of liquid silicone rubber for mold making MOQ: 200Kilogram/Kilograms Price: FOB Shenzhen USD6.2~8.3/Kilogram Package Details: 25kg/drum and 200kg/drum Delivery Time: within 3 days after getting your bank receipt Payment Terms: T/T, L/C operations of liquid silicone rubber for mold making: mould silicone rubber is a kind of flowing liquid, and it consists of two component, part A is aflowable liquid silicone rubber, part B is the curing agent. Firstly, after your previous work of dealing with the origianal moldel, take some liquid silicone rubber, add 2%~3% cuing agent of the amount of silicon and mix them evenly. Then after vacuum-pumping the mixture, you cn pour it into the mold frame. The sillicone mold will cured in 2~3 hours. Note: the time for vacuum-pumping should be less than 3-5mins, othewise, once the silicone rubber has cross-link reaction during vacuumizing. it will not be operated. FOQ of liquid silicone rubber for mold making: 1. Why does the silicone rubber mold have few molding times? The silicone rubber mold has few molding times is due to follwoing reasons: adding too much silicone oil which will destroy the molecular of silicone rubber; making the mold for small and fine detailed products with higher hardness silicone rubber which is easy to break; making the mold for large products with soft silicone rubber which will reduce the tensile and tear strength of the mold, and the mold will have deformation. Thus, we should take the proper silicone rubber to make the mold for suitable products. 　　 2. Why does the mold made of silicone rubber have an unsmooth surface with tracks and strips on it? 　　 It is due to product or model to be molded should hasn't been sanded or polished . If the mold or product is not sanded or polished, the mold made of whatever quality silicone rubber will not be good and smooth enough since the mold or the product itself is not smooth or perfect. Another case is that uneven brushing of the release agent will also bring about unsmoothness of the mold. 3. Why does the addition cure molding silicone rubber cures after a long time? 　　In spite of the correct proportion of the curing agent and the silicone rubber, the mold silicone rubber needs a quite long period for curing at the room temperature, because it is can be completely cured by heating up the temperature and stressing. The general proportion of silicone rubber and curing agent is 10:1 and their reactions are as follows: 　　The silicone rubber will be cured in 6 hours at the temperature of 50℃. 　　The silicone rubber will be cured in 2-3 hours at the temperature of 80℃. 　　The silicone rubber will be cured in 30 minutes at the temperature of 100℃. 　　The silicone rubber will be cured in 15 seconds at the temperature of 200℃. 4.How to deal with the mold which has a dry surface and a non-dry internal layer during the use of the silicone rubber? 　　 The molding silicone rubber, which belongs to the condensation cure silicone rubber is cured by absorbing the moisture in the air. During the mold making process, the water content in the silicone rubber is dried but not adding supplementing appropriate amount of water, so the above phenomenon arises. The solution is that: the phenomenon is not a quality defect; It arises because the water content is not well controlled in order to prolong the shelf life of the silicone rubber; proper amount of 0.05% water is enough to be added into the silicone rubber for even mixing during use. Tel: 086-0755-89948158 Cell phone:086- 13554758940 Fax: 086-0755-89948030 Web: http://www.szrl.net Email: hyl(at)szrl(dot)com

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Hong Ye Jie Technology Co., Ltd.

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