Call Us: +86-592-5536328Email: derekcheng@jglsilicone.com

The difference between solid silicone and liquid silicone

Nov 28, 2023

If it is made into a finished product, it is generally not easy to distinguish.


The raw materials are visible, a solid and a liquid. Now let's talk about the difference between the two materials:

1. Liquid silicone and solid shape:

(1) As the name suggests, liquid silica gel is in a liquid state and has fluidity.

(2) Solid silica gel is solid, no fluidity!

2. The use of liquid silicone and solid silicone:

(1) Liquid silicone is generally used in baby products and kitchen supplies and medical supplies, and can be directly in contact with food and the human body.

(2) Solid silica gel is generally used in household goods and industrial miscellaneous parts and auto parts, etc., the application range is relatively wide,

3. Safety of solid silicone and liquid silicone:

(1) Liquid silica gel is a highly transparent and safe food-grade material, and auxiliary materials such as vulcanizing agent are not added during molding, and the molding is sealed and fed.

(2) Solid silica gel is a transparent and environmentally friendly material, and vulcanizing agent is needed to speed up vulcanization molding time when forming, and open mold feeding molding.

4. Liquid silicone and solid silicone molding methods:

(1) Liquid silicone is injection molding liquid silicone rubber (LSR) : the full name is injection molding liquid silicone rubber, vulcanization equipment for injection molding machine.

Injection molding machine has A very simple process (no need for high temperature glue process ingredients, rubber mixing, cutting, pendulum and other manual processes, only one worker can take the product), high product accuracy (all manual procedures before molding are replaced by the machine), high output (A/B glue mixed in

Forming in a few seconds at a certain temperature), save people, save electricity, save materials and other advantages, can produce all high-temperature glue production products! It is a mainstream in the development of silicone rubber materials in the next few years.

(2) Solid silicone molding is the raw material is a solid piece, through the mixer mixing, cutting machine cut into the product and mold appropriate size and thickness, and then put into the mold, pressure molding machine under a certain temperature molding. When demoulding and plastic products are similar, also need to clean the mold and so on.

(3) How to distinguish between liquid silicone and solid silicone products:

Liquid silicone has high transparency, no odor, and the product has a glue-filling port.

Solid silicone transparent base, with vulcanizing agent or other covering vulcanizing agent fragrance, product without glue mouth.