LED Module LSR Waterproof Sealing Ring

# LED Module LSR Waterproof Sealing Ring

Product Overview

LED Module LSR Waterproof Sealing Rings are precision-molded liquid silicone rubber components engineered to provide long-term reliable environmental sealing for outdoor and semi-outdoor LED lighting assemblies. Designed and manufactured by 橡楚（湖北）橡胶有限公司 (Xiangchu (Hubei) Rubber Co., Ltd.) at our dedicated production facility in Ezhou, Hubei, these sealing rings address the core challenge of protecting sensitive LED electronics from water ingress, dust contamination, temperature fluctuation, and UV exposure that commonly cause premature lighting system failure.

As a specialized manufacturer of Liquid Silicone Rubber (LSR) products, we leverage precision injection molding to produce sealing rings with consistent dimensional tolerance and uniform material density, matching the specific installation dimensions of standard and custom LED module configurations. Unlike conventional solid rubber gaskets, our LSR sealing rings maintain elastic recovery and sealing performance across wide temperature ranges, making them suitable for year-round outdoor operation without cracking, hardening, or deformation. This product is ideal for applications requiring IP65 and above ingress protection, delivering a durable, low-maintenance sealing solution for LED lighting manufacturers around the world.

Technical Specifications

Material Properties

Our LED Module LSR Waterproof Sealing Rings are produced from high-purity addition-cured liquid silicone rubber, with the following core material properties:

Physical Performance

Finished sealing rings undergo 100% inline quality inspection and meet the following physical performance standards:

Process Parameters

All our sealing rings are manufactured via precision liquid silicone injection molding with the following controlled process parameters to ensure consistent quality:

• Injection pressure: 8–12 MPa
• Mold temperature: 160–180°C
• Curing time: 60–120 seconds (adjusted for product thickness)
• Post-curing: 4 hours @ 150°C to eliminate residual volatiles
• Dimensional tolerance: ±0.05 mm for standard sizes; ±0.02 mm for high-precision custom configurations

Product Advantages

1. Long-term waterproof reliability: LSR material is inherently hydrophobic and resistant to water absorption, maintaining a consistent compressive seal even after prolonged immersion or exposure to heavy rain. The uniform molecular structure of our cured LSR eliminates micro-porosity that can cause water leakage over time, supporting stable IP65 to IP68 ingress protection ratings when properly installed in LED module assemblies.

1. Excellent weathering and UV resistance: Unlike organic rubber materials that degrade under prolonged outdoor UV exposure, LSR maintains its elasticity, hardness, and sealing performance for 5+ years of outdoor operation. It resists ozone, acid rain, and common atmospheric contaminants, preventing cracking, discoloration, and seal failure that would require costly maintenance or replacement of LED lighting systems.

1. Precision molding for consistent fit: Our injection molding process delivers tight dimensional tolerance that matches the groove dimensions of standard LED module enclosures, eliminating fitting errors that compromise waterproof performance. We can adjust molding parameters to match custom enclosure designs, ensuring a consistent, tight fit for every production batch of LED modules.

1. Non-corrosive and environmentally safe: Our platinum-cured LSR formulation is free of corrosive byproducts, sulfur, and heavy metals, so it will not corrode LED circuit boards, metal heat sinks, or aluminum housing materials over time. The material meets RoHS environmental standards, making it suitable for export to all global markets with common environmental regulatory requirements.

1. Cost-effective mass production: Our automated LSR injection molding process enables high-volume production with low per-unit cost and consistent quality, supporting the demand of large-scale LED lighting manufacturing without long lead times. We maintain strict raw material inventory control to fulfill bulk orders in a timely manner for global clients.

Applications

LED Module LSR Waterproof Sealing Rings are designed for a wide range of outdoor and high-humidity LED lighting applications, including:

• Outdoor architectural lighting: Sealing for LED module assemblies used in facade lighting, landscape lighting, and bridge spotlights, protecting electronics from rain, dew, and temperature fluctuation.
• Street and roadway lighting: Sealing for modular LED street light panels, providing long-term protection against dust, water, and vehicle exhaust contaminants.
• Display and signage: Waterproof sealing for outdoor LED billboard modules and digital signage, preventing water damage to PCB and LED chips in all weather conditions.
• Underwater lighting: Sealing for underwater LED pool lighting and fountain lighting modules, supporting long-term immersion without seal degradation.
• Commercial greenhouse and agricultural LED lighting: Sealing for LED modules in high-humidity growing environments, protecting against moisture and fertilizer vapor contamination.
• Outdoor smart lighting systems: Sealing for integrated LED modules with smart control sensors, maintaining reliable performance in all outdoor climate conditions.

Selection Guide

Hardness Selection

Hardness selection should be based on the compression ratio of your installation groove to ensure optimal sealing performance:

• 30–40 Shore A: Suitable for applications with large assembly tolerance or low compression installation, providing soft conformability to uneven enclosure surfaces.
• 40–50 Shore A: The most common general-purpose option, balancing conformability and elastic recovery for most standard LED module waterproof applications.
• 50–60 Shore A: Suitable for high-compression installation or applications requiring high mechanical stability, ideal for deep groove sealing in large LED panel assemblies.

Size Specifications

We stock standard size sealing rings matching the most common LED module form factors, including 50x50mm, 100x50mm, 100x100mm, and 150x100mm square modules, as well as custom sizes for round and irregular LED module configurations. For custom orders, we require customers to provide detailed drawings of the installation groove, including inner diameter, outer diameter, groove depth, and required sealing ring cross-section to produce a matching product.

Material Grade

We offer two standard material grades for different application requirements:

• General-purpose grade: Suitable for most outdoor LED applications with operating temperatures between -40°C and +150°C, meeting standard RoHS and performance requirements at a cost-effective price point.
• Low-volatile high-temperature grade: Suitable for applications that require exposure to continuous high temperatures above 150°C or require extremely low volatile emission to avoid contaminating LED lens surfaces.

Quality Assurance

At 橡楚（湖北）橡胶有限公司, we implement a full quality management system certified to ISO 9001, covering raw material incoming inspection, in-process production monitoring, and finished product outgoing testing. Every batch of raw material is tested for hardness, tensile strength, and elongation before entering production, and every finished sealing ring undergoes visual inspection for surface defects and dimensional inspection to confirm compliance with tolerance requirements.

Our production facility is 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, where we maintain controlled production environments to prevent contamination during molding and post-processing. We can provide batch test reports for all orders to confirm compliance with agreed specifications. For bulk orders, we offer pre-production sample confirmation to ensure the product matches your installation requirements before full-scale manufacturing.

For inquiries about custom sizes, bulk pricing, or product samples, please contact us at phone: +86 18071171144 or email: churubber@163.com.