Excellent mechanical properties
Range of catalyst allows different working, curing time
RTV Silicone Rubber For Mold Making
We have two types of silicone rubber making different types of mold, such as stone mold, resin mold, plaster mold, candle mold.life casting and so on.
Our silicone rubber, owns higher tensile and tear strength, higher heat resistance, less demolding time, lower shrinkage and much easier to demold.Most important, shrinkage is less, which can make precise details of product.
1, Good fluidity which ensures a good processing when filling a mould by gravity.
2. Excellent mechanical properties, in particular tear strength.
3, Excellent flexibility and its low modulus facilitate the mould release.
4, Range of catalysts allows to fulfil the requirements for various curing and working time.
Instruction And Professional Guidance
1, About choosing hardness
First, if size of your stone is very large, you need to choose a little higher hardness, such as 40, 45, 50, 50…. In the contract, if size is small, just need to choose soft silicone rubber.
Second, if details of your stone are complicated, we need to choose soft hardness for you, as rubber can tightly fit every small corner of the master mold. In the contract, if details are easy, 30, 35 hardness is better.
2, About viscosity
Generally speaking, it depends on whether you have a vacuum chamber.
(1)If you do not have a vacuum chamber, we need to choose low viscosity for you, for
bubbles can easily release, therefore will not influence the property, what’s more, not
destroy the design.
(2)If you have a vacuum chamber, viscosity is not a problem.
5, About Color
(1) We can produce the simple pure color, such as red, blue, green, yellow, purple and so on.
(2) We can also produce your needing complicated color, such as silver, gold color, but need your palette.
(1) Take out a certain amount of liquid silicone base(part A)from the container;
(2). Take out a certain amount of liquid silicone base(part B) from the container and mix with part A.
(3). The two components of silicone rubber must be mixed homogeneously, otherwise, it will be partly cured and solidified;
(4). Deaerate in a vacuum cupboard to achieve bubble free vulcanization;
Note: If no vacuum de-airing equipment is available, air entrapment can be minimized by mixing a small quantity of A and B component, then using a brush, painting the original with a 1-2mm layer. Leave at room temperature until the surface is bubble free and the layer has begun to cure. Mix a further quantity of base and curing agent and proceed as follows to produce a final mold.
(5). Pouring the deaerated mixture over the highest point of the model to form castingmould;
(6). Demolding after the liquid silicone solidified thoroughly.
(7). The mixed liquid silicone rubber will solidified in 3-4 hours under room temperature.
1kg sample is free of charge from our side.
Promise of quality
If sample pass your test, we promise that quality of goods will be 95% the same as sample.
Guangzhou Conson Silicone Materials Co., Ltd. is a leading science and technology corporation, dedicated to the research, develop, manufacture and sale of silicone materials. We have complete research facilities and a high level R&D team, including over 10 engineers and two doctoral senior researchers. We also cooperate with many universities and scientific research institutes in researching and developing silicone materials. Furthermore, our sale and service team are professional, experienced ... View detail