chemical silicone rubber raw material,silicone rubber for concrete horse statues,decoration gypsum moldings
 
 Description
Tin cured silicone rubber 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 .

 
Applications 
tin cured  silicone rubber is used for making molds of concrete stone,GRC, gypsum decoration, plaster ornaments, fiberglass products, polyester decoration, unsaturated resin crafts, polyresin crafts, polyurethane, bronze, wax, candle, and similar products .




Chemical silicone rubber raw material  can be also applied to poly resin crafts,PU crafts,PU resin crafts ,gypsum crafts ,unsaturated resin crafts, lighting and candles crafts ,plastic toy , stationery gifts crafts industry, a large statue Buddha, relievo furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, large-scale cement mold, artificial fossils Factory,Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.
 
Features of  chemical silicone rubber raw material,silicone rubber for concrete horse statues,decoration gypsum moldings

chemical silicone rubber raw material is white or red flowing liquid with general hardness of 22-50A°after curing. Molding silicon rubber is a kind elastic silicon rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength ,tear strength and elongation.
 
 
Technical datasheet of  chemical silicone rubber raw material,silicone rubber for concrete horse statues,decoration gypsum moldings
 
 
 Characteristics
*An exceptional fluidity and good operability, easy to demold
*A kind of soft silicone
*Good tensile strength and tear strength
*Cure at room temperature
*Good flexibility
*Outstanding bubble releasing 
*Good duplication times
 
 

Operations of  chemical silicone rubber raw material,silicone rubber for concrete horse statues,decoration gypsum moldings
 

If the customer wants to make large products and large size molds, the mold should be made of silicone rubber with high hardness. On the contrary, if the mold with fine and precision  patterns, it should be made of silicon with low hardness. The amount of the curing agent depends on the actual requirements of the customer. If molds requiring fast drying and demould, more curing agent is needed; contrarily, if molds requiring slower drying and demould, less curing agent is needed.
 
(Note: our company does not recommend you to add silicone oil. If a special soft 
silicon mold or fine detailed and complex patterns products are required, 5%-10% 
silicone oil can be added to soften the mold for easy demould.)
 
Frequently asked questions for  chemical silicone rubber raw material,silicone rubber for concrete horse statues,decoration gypsum moldings
 
What should we do for deformation of the silicone mold ?
It should be dealt apart according to the size of the products. In principle, the hardness of the silicone should be based on the size of the products. If the products is with small size and detailed patterns , the soft silicone 15-20shore A can be applied, which is easy for demolding and will not damage the patterns. 
 
For the products with medium size, such as 50cm, 25-30 shore A silicon should be used .
For the products with large size, such as 1m, harder silicone such as 35-40 shore A shall be recommended to avoid deformation.
 
If the product is large but features detailed patterns,30 shore A silicone will be workable.
(The process is a layer silicone added, a layer fiber glass or cloth followed and repeat 2 times to enhance the tear strength.).The outer mold can be plaster, glass fiber reinforced plastic(unsaturated resin and fiber glass) to protect the products from deformation.
 
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 inconvinience 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 sugges to set the silicone mold for another 12 hours after demould before put into large production .
Package 
1kg/drum,5kg/drum,20kg/drum,25kg/drum,200kg/drum