What Is LSR and Why Is It Safer Than Plastic? Your Top Questions Answered
Q: What exactly is Liquid Silicone Rubber (LSR)?
A: LSR is a soft, flexible, and heat-resistant material made for high-precision products. It’s a type of silicone that can be injection molded, making it ideal for creating clean and consistent medical or food-grade parts.
Q: How can I tell if silicone is medical-grade?
A: Medical-grade LSR is usually platinum-cured and free of fillers. One way to test this is by stretching the material—if it turns white, it may contain fillers, which aren’t ideal for medical use. TNSILICONE uses only filler-free, traceable, medical-grade LSR.
Q: Is LSR better than plastic?
Absolutely. Unlike plastic, LSR is highly biocompatible, doesn’t break down into harmful microplastics, and resists heat without leaching chemicals. That’s why it’s used in everything from baby pacifiers to surgical masks.
Q: What makes TNSILICONE different?
We don’t cut corners. Our materials meet ISO 13485 and FDA standards, and we specialize in platinum-cured silicone for the cleanest, safest results. No peroxide, no tin residues—just safe, stable, medical-grade silicone.
Q: Can I use LSR for food contact products?
Yes. The same LSR used for healthcare can also be used in food-grade applications like spatulas or water bottle valves. It’s durable, non-toxic, and long-lasting.
