This LSR overmolded ceramic protective sheath is manufactured by Xiangchu Rubber. It adopts integrated injection molding process, with firm bonding and no cracking, good buffering, impact resistance and insulation. We support customization of color, hardness and size to meet the protection needs of multiple industries.
Material
Industrial LSR
Hardness
Shore A 30-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# Liquid Silicone Overmolded Ceramic Protective Sheath
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Liquid Silicone Overmolded Ceramic Protective Sheath is a custom-engineered protective component produced by 橡楚（湖北）橡胶有限公司, designed to address the inherent brittleness and low impact resistance of ceramic structural parts while retaining the excellent high-temperature performance, insulation, and corrosion resistance of ceramic substrates.
This product integrates precision injection overmolding technology with high-purity food-grade or industrial-grade liquid silicone rubber (LSR) to form a permanent, gap-free bond between the LSR outer layer and the inner ceramic core. The outer silicone sheath absorbs mechanical impact, disperses concentrated stress, and effectively prevents edge chipping, cracking, or complete fracture of the ceramic part during handling, installation, and long-term operation. At 橡楚（湖北）橡胶有限公司, we manufacture these protective sheaths at our facility located at 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号, with controlled production processes that meet consistent quality requirements for global industrial and consumer applications.
Unlike post-assembled silicone covers that rely on mechanical fitting or adhesive bonding, our overmolded design eliminates gaps between the silicone sheath and ceramic core, preventing the ingress of dust, moisture, and corrosive media. This integrated structure also delivers improved ergonomic handling, enhanced grip, and reliable insulation performance that cannot be achieved by unprotected ceramic parts.
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Our LSR overmolding process forms a direct chemical bond between the silicone sheath and ceramic core, eliminating the gaps and adhesive degradation issues common to post-assembled protective covers. This bond resists delamination even after long-term thermal cycling and mechanical vibration, extending the service life of the ceramic component by 3 to 5 times compared to unprotected alternatives.
We can adjust the Shore hardness, thickness, and outer contour of the silicone sheath to meet different functional needs. Soft low-hardness sheaths deliver excellent shock absorption for handheld devices, while high-hardness sheaths provide enhanced wear resistance for industrial mechanical components. We also offer custom material grades to comply with food contact, medical, or industrial application standards.
The thin LSR protective sheath does not affect the high-temperature resistance, insulation, and corrosion resistance of the inner ceramic core. It only improves the impact resistance and handling performance of the ceramic part, allowing customers to leverage the benefits of ceramic materials without the risk of brittle fracture.
All production is carried out at our facility in 湖北省鄂州市鄂城区经济开发区凡口街道内河巷54号, with raw material incoming inspection and finished product performance testing at every production stage. Our production system is certified to ISO 9001, ensuring consistent dimensional accuracy and performance across all production batches.
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Liquid Silicone Overmolded Ceramic Protective Sheaths are suitable for a wide range of industrial and commercial applications that require the performance of ceramic materials with improved mechanical durability:
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All our Liquid Silicone Overmolded Ceramic Protective Sheaths are custom manufactured based on customer drawings and sample requirements. We support production of inner ceramic core diameters ranging from 5 mm to 200 mm, and silicone sheath thickness ranging from 0.5 mm to 5 mm to meet different installation and performance requirements. For oversized or geometrically complex ceramic parts, please contact our technical team for feasibility evaluation.
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All Liquid Silicone Overmolded Ceramic Protective Sheaths produced by 橡楚（湖北）橡胶有限公司 are manufactured under a quality management system certified to ISO 9001, with full traceability from raw material incoming inspection to finished product outgoing inspection. Our quality control process includes: 100% dimensional inspection to confirm compliance with customer tolerance requirements; visual inspection to check for surface defects and bonding integrity; regular performance testing of silicone hardness, tensile strength, and bonding strength per batch.
We do not exaggerate product performance, and we provide clear technical parameters and sample evaluation for customers to verify performance before mass production. For customized products, we provide pre-production sample confirmation to ensure that product size, hardness, and structure meet customer requirements.
For inquiries, sample requests, or custom product quotations, please contact us at:
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