|Place of Origin:||Guangdong China|
|Model Number:||YJS-520 silicone rubber|
|Hardness:||20 Shore A|
|Feature:||long shelf life|
|Sample:||1kg free sample|
|Curing agent:||free of charge|
|Molding method:||pouring ,brushing|
|Selling Units:||Single item|
|Single package size:||15X15X16 cm|
|Single gross weight:||1.5 KG|
|Package Type:||5kg/pail ,25kg/pail ,200kg/pail vacuum packaging.|
YJS-520 is a kind of room temperature vulcanized silicone rubber in condensation type. It’s generally
named as two part silicone rubber , Part A is a flowable liquid, part B is the curing agent or catalyst . It’s mainly used for mold making.
YJS-520 silicone rubber is used for making molds of gypsum decoration, plaster ornaments,
polyester decoration, unsaturated resin crafts, polyresin crafts, polyurethane, bronze, wax, candle, and similar products .
Product data (Catalyzed A+B)
25 °C (77F)
25 °C (77F)
An exceptional fluidity and good operability, easy to demold
A kind of soft silicone
Good tensile strength and tear strength
Cure at room temperature
Outstanding bubble releasing
Good duplication times
Step 1: prepare the original molds
Make sure your original molds perfect. fix it on a board. And fix the original mold on a board , then used four piece of board to enclose the original molds .
Step 2: Take 100 G parts A and add 3G parts B and mix them evenly.
Notes: Mold making silicon rubber is a kind of flowing liquid ,it contains two parts. Part A is a kind of flowing white liquid and part B is the curing agent or catalyst .Pls follow the step strictly:
1.Weigh the two part exactly by electronic weight..
If not , for example add two much catalyst , the operation time will be too fast to operate ,which will cause inconvenience to operate .
2.Mix part A and part B evenly.
Otherwise the silicon rubber will be partly solidified and this will give birth to difficulties in your final operation. What’s more, the finished molds will meet a short life. All of these will cause a waste of silicon rubber.
Step 3: Vacuum pumping
Without exception, this step takes less than 10 minutes. Otherwise, it will cause cross linking reaction, and no more further steps will be available.
Step 4: Pouring casting or Brush operation
Notes:1. For simple pattern products we suggest use pouring operation way , which will be very easy to operate and demould. Pourable silicone require light viscosity which will be easy to flow smoothly and easy to de-air .
2.For delicate pattern products we suggest use brushing operation way , which can copy the pattern exactly . Brushable silicone require high viscosity which won’t be easy to flow away and easy to brush . 3. We suggest to set the silicone mold for another 12 hours after demould before put into large production .
25KG/drum vacuum packing for part A +1kg/ bottle catalyst for part B
200KG/drum packing for part A +1kg/ bottle catalyst for part B
Twelve(12) months when stored under dry and cool place by original package under 25℃