
What’s different between medical grade and food grade lsr silicone?
The difference between medical grade and food grade LSR (Liquid Silicone Rubber) silicone primarily lies in their purity, safety standards, and intended applications. 1, Purity & Additives Medical Grade LSR silicone: Extremely high purity. Contains no harmful additives, fillers, or plasticizers. Designed to be biocompatible—safe for contact with human tissues, blood, and bodily fluids. Often platinum-cured (for higher purity and stability). Food Grade LSR silicone: High purity, but less stringent than medical grade. Safe for contact with food and beverages. Also platinum-cured, but minor differences in allowable ingredients may exist. 2,Regulatory Standards Medical Grade LSR silicone: Must pass ISO 10993, USP Class VI, or FDA Class II/III certifications depending on application. Suitable for use in implants, catheters, wound care, etc.