Medical Grade LSR

The Future is Soft: Silicone Packaging

Experience the premium touch of Liquid Silicone Rubber (LSR). BPA-free, heat-resistant, and squeezable. The safest choice for baby care and travel cosmetics.

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Why Switch to Silicone?

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BPA Free

FDA & LFGB compliant. Safe for infant feeding.

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Soft Touch

Premium velvet feel. Easy to squeeze every drop.

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Heat Safe

Autoclavable up to 200°C. Easy to sterilize.

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Leak Proof

Self-sealing valve technology. TSA friendly.

Our Silicone Portfolio

Technical Whitepaper: Liquid Silicone Rubber (LSR)

Silicone is chemically distinct from plastics like PE or PET. It is an inorganic polymer based on a silicon-oxygen backbone. At Golden Soar, we utilize Liquid Silicone Rubber (LSR) Injection Molding to create high-precision, medical-grade packaging.

1. The LSR Injection Process

Unlike compression molding (used for cheap baking mats), LSR injection molding uses a two-component system (Part A + Part B) mixed and injected into a heated mold. This allows for:

Flash-Free Precision: Extremely tight tolerances for valve seals and caps.
High Clarity: Optical grade LSR can rival glass in transparency.
Co-Injection: We can over-mold silicone directly onto a PP neck ring, creating a fused bond that prevents separation.

2. Shore A Hardness Customization

Silicone’s “softness” is measured on the Shore A durometer scale. We offer customized hardness levels based on your product needs:

Shore 30A-40A: Very soft, jelly-like. Ideal for nipples and sensory toys.
Shore 50A-60A: Standard “squeezable” feel. Perfect for lotion tubes and travel bottles.
Shore 70A-80A: Stiffer, rubbery feel. Used for sealing gaskets and protective sleeves.

3. Post-Curing & Safety

Raw silicone contains volatile organic compounds (VOCs) immediately after molding. To ensure medical-grade safety, every Golden Soar silicone product undergoes a 4-hour Post-Curing process in an oven at 200°C. This drives off all volatiles, ensuring the product is odorless, tasteless, and fully inert (biocompatible).

LSR Molding in Action

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See how we transform liquid silicone into finished products using high-precision platinum curing.

Silicone FAQ

Does silicone attract dust?

Raw silicone has high static friction and can attract lint. However, we apply a specialized “Matte Oil” coating (spray process) after molding. This gives the surface a silky, dry feel that repels dust and is non-sticky.

Can silicone bottles be recycled?

Silicone is not biodegradable, but it is recyclable at specialized facilities. It does not degrade into microplastics like traditional petroleum plastics. We offer a take-back program for large B2B partners.

What is the advantage over soft-touch PE?

Soft-touch PE is just a thin coating on a hard plastic. Silicone is soft through and through. It has better elastic memory (returns to shape instantly) and much higher heat resistance (won’t melt in a dishwasher).

Is it compatible with all cosmetic ingredients?

Silicone is chemically inert to most water-based and oil-based creams. However, it should NOT be used with silicone-based serums (dimethicone), as “like dissolves like” and it may cause the bottle to swell.

Feel the Difference

Request a “Soft-Touch” sample kit. Includes travel bottles, cream jars, and facial scrubbers.

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