Food Grade Addition Silicone
Food Grade Addition Silicone are generally named as two-part addition silicone rubber that vulcanises at room temperature.Part A is a flowable liquid, part B is the curing agent(platinum catalyst). It features an exceptional fluidity ,good operability,excellent physical properties and very low shrinkage. The mixing ratio between Part A and Part B can be 10:1 or 1:1.
Product | EME615 | EME620 | EME625 | EME630 | EME642 | Appearance | Translucent | Translucent | Translucent | Translucent | Translucent | Hardness(shore A) | 15±2 | 20±2 | 25±2 | 30±2 | 40±2 | Mix ratio(A:B) | 1:1/10:1 | 1:1/10:1 | 1:1/10:1 | 1:1/10:1 | 1:1/10:1 | Viscocity Part A(mPa.s) | 9000±2000 | 11000±2000 | 12000±2000 | 12500±2000 | 15000±2000 | Viscocity Part B(mPa.s) | 1900±500 | 1900±500 | 1800±500 | 2400±500 | 100±50 | Tensile strength (MPa) | 6.2 | 6.5 | 6.7 | 7.2 | 7.6 | Tear-strength (kN/m) | 25 | 26 | 23 | 24 | 22 | Elongation(%) | 569 | 581 | 480 | 440 | 450 | Density | 1.05 | 1.05 | 1.07 | 1.13 | 1.14 | Pot life/working time (mins) (adjustable) | 30-40 | 30-40 | 30-40 | 30-40 | 30-40 | Curing time/setting time (hrs) (adjustable) | 3-4hrs(25°C) 120-30mins(60°C) | 3-4hrs(25°C) 120-30mins(60°C) | 3-4hrs(25°C) 120-30mins(60°C) | 3-4hrs(25°C) 20-30mins(60°C) | 6-8hrs(25°C) 30-50mins(60°C) | Shrinkage rate (%) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
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Food Grade Addition Silicone Appilications |
Especially suitable for the molding of sugar,chocolate,cakes ect. Food Grade Addition Silicone Feactures |
/Good fluidity and good operability and good for pouring method. /Excellent mechanical properties, in particular tear strength and tensile strength. /Excellent flexibility and it is easy to demould. /High temperature resistance, high duplication times and repeated use. /There are a range of catalysts/curing agent/hardener allows the Liquid rtv silicone rubber to fulfill requirements for various applications and various requirements on the operation time and curing time. How to use Food Grade Addition Silicone |
1.The cast pouring, for example: Prepare a frame, fix the prototype for copy into the frame, (if the prototype’s material is glass or ceramic, the release agent is necessary to prevent sticking. 2. Take 1 part A and 1 part B,mix themevenly. 3.Vacuum defoaming in 1~3 min,inject the rubber into the type box, then vacuum defoaming again, curing 24 hours in nature room temperature, use it after demold. 4. Demold after 3 hours’ room temperature curing, and then use it after 24 hours’ keep mold under the same condition.
How to make a perfect silicone molds with Food Grade Addition Silicone |
Firstly,the silicone rubber and catalyst must be mix evenly,mixing for 5-6 minutes,if you do not mix evenly,it will cause one part is dry but other part is wet. Secondly,if you have a vacuumed machine,that's will be perfect, vacuuming mixed silicone for 5-6 minutes,there will not have bubble. Thirdly,the silicone mould need 24 hours to complete dry,so when you finished the silicone mould,please after 24 hours later bring into production. I believe that the silicone mould will be perfect if you pay attention to these points.
For getting further information about RTV-2 silicone rubber, PLS contact with Ms Moe Email: hyt(at)szrl(dot)net Skype: moe.chai Tel: 86-755-89948019 Mob: 86-18938867514 Web: ..........net |