Yes, liquid silicone rubber could be injection molded, which is one type of silicone. which includes liquid silicone and solid silicone.

The main difference between liquid silicone rubber and solid silicone rubber is that one is injection molding material and the other is solid compression molding silicone; but the finished product after processing is not so easy to distinguish. Let's take a look at the difference between liquid silicone rubber and solid silicone rubber.

Relative to solid high-temperature vulcanized silicone rubber, the liquid silicone rubber with good fluidity, fast vulcanization, safer and more environmentally friendly, and can fully meet the requirements of food grade or medical grade silicone molding material. Liquid silicone has excellent tear resistance, resilience, yellowing resistance, thermal stability, heat resistance and aging resistance. Mainly used for baby products, medical products and electronic products.

1. From the aspect of appearance:

liquid silicone rubber is liquid one and has fluidity. solid silicone rubber is solid one without fluidity.

2.What is liquid silicone used for?

The safety of liquid silicone and solid silicone: Liquid silicone is a highly transparent and safe food-grade& medical grade silicone molding material. No auxiliary materials such as vulcanizing agent are added during molding, and it is sealed and deformed ( A/B silicone is mixed in a certain temperature for a few seconds), and has many advantages such as labor saving, power saving, and material saving, high precision.

Liquid silicone rubber injection molding is generally used in baby products, kitchen products and medical grade silicone molding products. It can directly contact food and human body.

Solid silicone rubber is a transparent material. Food grade vulcanizing agent needs to be added during molding to speed up the vulcanization molding time. The molding process requires manual feeding into the mold cavity and then molding.Solid silicone compression molding is generally used in daily necessities, industrial miscellaneous parts, and auto parts.

3. The molding method of liquid silicone rubber and solid silicone rubber :

Liquid silicone rubber is injection molding liquid silicone rubber (LSR): the full name is injection molding liquid silicone rubber, the molding process is LIM, liquid silicone molding, its processing machine is injection molding machine. Compared with the thermal vulcanization (HCR- heat compression molding) silicone molding process, when using the LIM( liquid silicone rubber injection molding) process to produce silicone rubber products, it has the advantages of high product precision, high output (A/B liquid silicone is mixed in a certain temperature for a few seconds), and has many advantages such as labor-saving, power saving, and material saving. It can produce all high-temperature silicone production eliminating the need for post-processing, high product yield, and low overall cost (LIM saves about 40% compared to HCR).

Solid silicone molding is with solid silicone rubber. After mixing by the mixer, and then the preformed rubber material is put into the mold, and vulcanized and molded at a certain high temperature. The demolding process is similar to that of plastic products, and the mold needs to be cleaned.

Melon rubber is one professional OEM silicone injection molding and silicone compression molding manufacturer, Whether it is compression, injection, or transfer molding technologies from prototype to multi-cavity serial production tools, our engineers will provide professional services throughout the process. Please feel free contact our engineer rubber@melon-rubber.com