Silicone Rubber For polyester mold making

Applications of liquid  silicon rubber for molds making:

Liquid silicone rubber for molds making is suitable for industries such as toys, gifts, decoration, plate engrave, human replica, art crafts, resin crafts, poly resin crafts, unsaturated resin crafts, candle crafts, plastic crafts, stationeries, plaster crafts and Buddhist statue crafts.

Features of liquid silicone rubber for molds making:

1). Good characteristics of easy-operation

2). Ligh viscosity and good flowability

3). Low shrinkage

4). Favorable tension

5). No deformation

6). Favorable hardness

7). High temperature resistance, acid and alkali-resistance and ageing resistance

Why should the liquid silicone rubber for molds making mold be reused only for a few times?

It can be due to the following reasons:

a. Adding too much silicone oil in to silicon rubber. Silicon oil is an additive which destroies the molecular weight of silicone rubber and reduce the tension and tear strength.

b. Using the silicon rubber with a high hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a low hardness to makes molds for large sized products with simple designs.

(Notes: we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.)