1kg 5kg 25kg 200kg or wood case as per your requirement
3-5 days after you comfirm your order
GRC cement plaster concrete moulding
resin PU polyester,candle mold making
Usage :1) for cement resin casting 2) for plaster concrete pouring 3) for soap candle making 4) crafts stone reproducing
5) for plaster sculpture mass reproduction
How can we make a silicone rubber moulds
If you want to make a mould can be used thansands of times ,you should to use the RTV 2 silicone rubber materials ,and now let us teach you how to use the RTV silicon rubber to make a molds :
Operations for molding silicon rubber:
Step One:Take 100g of part A and add 2g of part B and mix the silicon rubber and the curing agent evenly.Note:Molding silicon rubber is a kind of flowing liquid and it contains two parts. Part A is a kind of white flowing liquid and part B is the curing agent. Remember to mix part A andpart 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 moulds will meet a short life. All of these will cause a waste of silicon rubber materials.
Step Two: vacuum pumping
Without exception, this takes less than 10 minutes. Otherwise, it will cause cross linking
reaction, and no more further steps will be available.
a. Evenly brush the mixed silicon rubber on the product which is covered with mold spray with a brush or a brush pen.
b. After the cross linking reaction ( about 30 minutes ),brush a second coat which can increase the tension and tear
strength of the mold.
c. Cover a glass cloth on it after another 30 minutes of a second cross linking reaction, and use a brush pen or a brush to avoid any interstices.
d. Cover a third coat.(Note: if you have high requirements for the tension and the tear strength for the mold,please repeat step c and step d.Hence, the finished silicone moulds will have a good quality and a longer life, which can help you save cost and increase production efficiency.)
The perfusion molding is an easy way to make molds, Slowly and evenly perfuse the mixed silicon rubber into the square frame. After the cross linking reaction.
Step Four: Operations for the external mold
a.Make a square frame with four pieces of wooden boards or rubber plates, then place the product which is covered
with the finished silicon rubber mould in the middle.
b.Slowly and evenly perfuse the gypsum to the square frame. Also you can brush the resin on the product which is covered with the finished silicon rubber mould with a brush or a brush pen. Repeat this process two or three time after the cross link reaction.
We can provide you the best quality rtv silicone rubber with competitive price and free remold technology.
Any more information, please feel free to contact Miss Ana Liu
Phone: 0086 136 9984 9627
Contact: Nancy xie
Email: nancy at lhsilicone dot com
We produce many kinds of silicone rubber, RTV-2 molding silicone rubber, silicone rubber for manual model design,shoe sole mold silicone rubber, silicon oil, pad printing silicone rubber, encapsulant and potting compound, silicone rubber for LED display, electronic thermolysis ointment, ... View detail