Our High Transparency LSR (Liquid Silicone Rubber) is a premium 1:1 mix-ratio injection molding material specifically engineered for baby nipples, feeding bottle components, and infant oral care products—prioritizing safety, clarity, and gentle contact with delicate skin.
Boasting 95%+ light transmittance, this LSR delivers glass-like clarity, allowing easy visual inspection of flow and ensuring a pure, hygienic appearance parents trust. Its 1:1 mix ratio simplifies injection molding processes, with a smooth flow rate (2,800-3,200 cP) that fills intricate mold details—critical for anti-colic nipple valves and precision threading on bottle collars. The material cures at 160-180℃ into a soft yet durable rubber (30-40 Shore A hardness) with exceptional tear strength (≥30 kN/m), resisting biting damage while maintaining a gentle feel against babies’ gums.
Rigorously tested to meet global baby product standards, it complies with FDA 21 CFR Part 177.2600 (food contact), EU 10/2011 (plastic materials in contact with food), and USP Class VI (biocompatibility). Free from BPA, phthalates, latex, and heavy metals, it’s non-toxic, odorless, and tasteless—eliminating risks of chemical leaching even after repeated sterilization (withstands 500+ cycles of boiling water or steam disinfection without discoloration or degradation).
Ideal for high-volume production, its fast cure time (10-15 seconds at 170℃) reduces manufacturing cycles. Post-cure, it remains flexible at -50℃ to 200℃, avoiding brittleness in cold sterilization or warping in hot liquids. The material’s low extractables (≤0.1%) ensure no residue transfers to milk or food, while its resistance to mold and bacteria growth enhances product longevity.
Call to Action: Request a free 500g sample kit (with safety test reports) or consult our technical team for molding parameter optimization—responses guaranteed within 4 hours!
