1.There are some impurities in the rtv silicone rubber.

2.Adding too much silicone oil into the rtv silicone rubber, it will break the molecular chain of the rtv silicone rubber and make

  the silicone pad to be softer and short-life.

3.The durability of printing pad should match with the size of the printing pattern. Large printing pad is used for big pattern.

  Otherwise, use the small printing pad.

2016-12-28