How should sponge grades be distinguished?
It is believed that we all know that in order to use sponge correctly, we must understand some details of sponge. Only when we know what it is and why it is, can we have a target. Let’s see how to distinguish sponge grades:
Classification of sponge
The selection of sponge depends on its density, resilience, indentation hardness, fire protection standard, etc., and the color cannot be selected. The sofa is mainly composed of sponge and spring. There are several kinds of sponge. In terms of professional terms, there are many grades. Nowadays, high-density sponge is generally used. Generally, it is difficult to see the finished products, which can only be felt through trial sitting. How to distinguish the sofa quality? Sponges can be thick, thin, soft or hard. The speed of thick sponge is faster than that of thin sponge. Due to the different hand feeling of each person, the selection of the softness and hardness of sponge depends on the personal feeling. Generally speaking, too hard sponge is less used, while young golfers are more suitable for using slightly soft sponge, because it can improve the feeling of the hands when hitting.
