Liquid silicone rubber for gloves dipping
Liquid silicone rubber (LSR) is a popular material for manufacturing gloves, especially for applications requiring high durability, chemical resistance, and thermal stability. Dipping gloves in LSR provides a flexible, abrasion-resistant, and comfortable coating, making them ideal for industrial, medical, and household uses.
Key Properties of LSR for Glove Dipping:
Thermal Resistance – Withstands high temperatures (typically -40°C to +230°C).
Chemical Resistance – Resists oils, acids, alkalis, and solvents.
Soft & Flexible – Maintains elasticity even at low temperatures.
Biocompatible – Suitable for medical and food-grade applications (if platinum-cured).
Abrasion & Tear-Resistant – Enhances glove durability.
LSR Glove Dipping Process:
Mold Preparation – Clean ceramic or metal molds are preheated (~50–80°C).
Coagulant Dip (Optional) – Helps in easy release (for some formulations).
LSR Dipping – Molds are dipped into liquid silicone rubber (viscosity adjusted for even coating).
Curing – Heated (typically 100–200°C) to cross-link the silicone.
Stripping & Post-Processing – Gloves are removed, inspected, and sometimes interior-lined with fabric.
Types of LSR Gloves:
Industrial Gloves – For chemical handling, automotive, and high-heat applications.
Medical Gloves – Powder-free, hypoallergenic, and sterilizable.
Household Gloves – Heat-resistant for cooking/cleaning.
Specialty Gloves – Textured grip for mechanics or electrical insulation.
Advantages Over Other Materials (e.g., Latex, Nitrile, PVC):
✔ Longer lifespan – More resistant to wear and degradation.
✔ Better temperature range – Performs well in extreme cold/heat.
✔ Non-allergenic – Unlike latex, LSR is hypoallergenic.
✔ Eco-friendly – More durable, reducing waste.