This product is integrally injection molded with high-quality liquid silicone rubber, it tightly wraps glass borders, provides buffer shock resistance and scratch protection, has excellent waterproof sealing performance, resists high and low temperature and aging, adapts to protection and sealing requirements of various glass components with stable performance.
Material
Industrial LSR
Hardness
Shore A 30-60
Temperature
Certifications
Applications
-40°C ~ +150°C
Colors
Black, White, Transparent, Customizable
# Liquid Silicone Overmolded Glass Border Protective Sheath
The Liquid Silicone Overmolded Glass Border Protective Sheath is a precision-engineered protective solution designed to eliminate edge chipping, scratching, and impact damage to cut glass panels in residential, commercial, and industrial applications. Manufactured using high-purity liquid silicone rubber (LSR) through a one-step injection overmolding process, this sheath creates a seamless, permanent bond with glass edges that outperforms traditional adhesive-backed rubber strips and extruded profiles in durability, weather resistance, and aesthetic consistency.
Unlike aftermarket edge protection products that require on-site trimming and often detach after prolonged use, our overmolded LSR sheath is molded directly to your custom glass dimensions at the factory, ensuring a precision fit with zero gaps. Core selling points include 100% silicone material construction, impact-absorbing elasticity, UV and weather stability, and customizable color and hardness to match project design requirements. This product is ideal for applications where glass edge safety, long-term durability, and clean aesthetic finishing are critical priorities.
Our Liquid Silicone Overmolded Glass Border Protective Sheath is formulated from food-contact and outdoor-grade platinum-cured LSR, with the following core material properties:
Our overmolding process is optimized for consistent bonding and dimensional accuracy for all glass sizes:
Unlike slip-on or adhesive-applied edge protection, our LSR overmolding process forms a chemical-assisted mechanical bond directly to the glass edge, eliminating gaps where water, dust, or cleaning chemicals can penetrate. This prevents edge delamination and mold growth common with adhesive-backed products, and ensures the sheath remains securely attached for the entire service life of the glass panel.
The high elasticity of LSR effectively absorbs dynamic impact energy, reducing the risk of edge chipping and corner breakage during transportation, installation, and daily use. Our 30A–50A hardness formulations provide 2x higher energy absorption than extruded EPDM rubber, making them ideal for high-traffic and high-impact applications.
Platinum-cured LSR maintains its elasticity and mechanical properties across a wide temperature range and does not degrade from prolonged exposure to UV radiation, rain, snow, or common cleaning chemicals. Unlike organic rubbers that crack, harden, or peel within 3–5 years of outdoor use, our LSR protective sheaths have a tested service life of 15+ years in outdoor environments.
We offer full customization of hardness, color, and profile shape to match your project requirements. Whether you need a clear transparent sheath for a minimalist look, a custom RAL color to match frame finishes, or a contoured profile for improved grip, our injection molding process can accommodate complex geometries that are not possible with traditional extrusion methods.
Used for glass shelf edges in refrigerators, oven door glass borders, and glass cooktop perimeter protection. The food-safe LSR material is resistant to cooking oils, cleaning detergents, and repeated temperature cycling, improving user safety by preventing cut injuries from sharp glass edges and reducing chipping damage during daily use.
Widely used for frameless glass shower doors, glass table tops, glass shelving units, and movable glass room dividers. The overmolded sheath provides a clean, finished edge that eliminates the need for post-processing edging, improves slip resistance for handling, and meets building code safety requirements for impact resistance in public spaces.
Applied to sunroof glass borders, interior glass partition edges, and specialty vehicle window protection. The LSR material meets automotive flammability and VOC emission requirements, and withstands repeated thermal cycling from -30°C to 80°C without delamination or degradation.
Used for observation window borders on industrial machinery, laboratory equipment glass panels, and aquarium glass edges. The chemical-resistant LSR sheath provides a waterproof seal around glass edges, prevents corrosion of glass in high-humidity or chemical environments, and improves worker safety by protecting against sharp glass edges.
We manufacture custom-sized sheaths to match your exact glass dimensions, with the following guidelines for standard requirements:
All our Liquid Silicone Overmolded Glass Border Protective Sheaths are manufactured in an ISO 9001:2015 certified facility, with rigorous quality control at every stage of production:
We offer a 1-year warranty against manufacturing defects, and a 10-year performance guarantee for outdoor UV grade products against cracking, delamination, and excessive fading. Our engineering team provides full support for custom design and prototyping, with rapid lead times for prototype development and mass production.
