Dummy Seal Grey
Silicone Dummy Plug Seal for Automotive Wiring Harness Connectors
Key Features
| Material | VMQ Silicone / HCR Silicone / Liquid Silicone Rubber (LSR) |
| Function | Waterproof sealing for Automotive connector and Wiring Harness |
| Operating Temperature | -55°C to +200°C (Continuous) |
| Hardness | 70 ± 5 Shore A (Multiple options available) |
| IP Rating | IP67 / IP68 |
| Standard Color | Grey (Custom colors available) |
Product Overview
The Dummy Seal Grey is a precision-moulded silicone dummy plug seal designed to seal unused cavities in automotive connector housings. This dummy seal (also called blank seal or dummy plug) provides reliable IP67/IP68 waterproof protection for empty wire positions in multi-pole connectors, preventing water, dust, and contaminants from entering the electrical system through unused cavities.
Manufactured from automotive grade silicone rubber (VMQ/HCR/LSR), this high temperature dummy seal offers an exceptional operating range from -55°C to +200°C—making it suitable for underhood and underbody connector applications. The grey colour provides easy identification in production environments, distinguishing dummy seals from wire seals during assembly operations.
Why Choose ARPL?
- ISO 9001:2015 & IATF 16949:2016 certified dummy seal manufacturer in India
- 30+ years of rubber moulding expertise for automotive wiring harness applications
- In-house tooling, compounding, and cryogenic deflashing capabilities
- Full PPAP documentation – PPAP approved dummy seal manufacturer
- OEM and Tier-1 dummy seal supplier exporting to 20+ countries
Dummy Seal Manufacturer – Silicone Dummy Plug Seal for Automotive Connectors
ARPL manufactures high-quality dummy seals for automotive wiring harness applications requiring reliable sealing of unused connector cavities. As a leading dummy seal manufacturer in India, we supply dummy plug seals to OEM and Tier-1 wiring harness manufacturers serving global automotive programs. This silicone dummy seal provides essential IP67/IP68 environmental sealing for empty positions in multi-pole connectors.
Dummy seals are installed in connector cavities where no wire is present. Unlike connector seals that seal around wires, dummy seals are solid plugs that completely seal unused positions. Applications include ECU connector dummy seals, sensor connector dummy seals, EV battery connector dummy seals, and any multi-pole connector where some wire positions are not used in a particular vehicle variant or configuration.
High Temperature Silicone Dummy Seal Properties
This automotive dummy seal is manufactured from silicone rubber (VMQ) material, selected specifically for its exceptional temperature resistance and long-term stability. High temperature silicone dummy seals are the preferred choice for demanding automotive environments.
- High Temperature Dummy Seal -55°C to +200°C: Continuous operation with intermittent capability to +230°C
- UV and Ozone Resistant: Excellent weathering resistance for exterior connector applications
- Low Compression Set: Maintains sealing force over extended periods under thermal cycling
- Chemical Resistant: Resistant to automotive fluids and environmental contaminants
- RoHS and REACH Compliant: Meeting automotive environmental standards
ARPL also offers alternative materials for dummy seal development: NBR for oil/fuel resistance (-40°C to +120°C), EPDM for weather/ozone resistance, and other elastomers based on application requirements.
Why Choose ARPL – Dummy Seal Manufacturer
With over 30 years as an ISO 9001 and IATF 16949 rubber components manufacturer, ARPL delivers manufacturing excellence in dummy seals for wiring harness manufacturers including high-precision tooling, flash control with cryogenic deflashing, zero-defect quality systems, and full PPAP support. We serve as a dummy seal supplier to customers in Germany, USA, Mexico, Turkey, Brazil, UK, UAE, Thailand, Vietnam, Poland, Czech Republic, and Hungary.
Related Sealing Products
Explore our connector seals for wire entry positions, rubber grommets for wiring protection, rubber O-rings and sealing rings, and rubber gaskets and sealing solutions.
Industry Applications for Dummy Seals
Our Dummy Seal Grey is engineered to provide reliable IP67/IP68 waterproof protection for unused connector cavities across automotive, commercial vehicle, and EV applications. Dummy seals are essential components in multi-pole connectors where not all wire positions are used, ensuring complete environmental sealing regardless of connector configuration.
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Vehicle Segment Applications
ARPL supplies dummy seals to OEMs and Tier-1 wiring harness manufacturers serving diverse vehicle segments:
- Passenger Cars: ECU connectors, body control modules, infotainment connectors with unused positions
- Commercial Vehicles: Fleet management connectors, telematics modules, configurable sensor arrays
- Electric Vehicles (EV): Battery management connectors, charging interface connectors, motor controller interfaces
- Hybrid Electric Vehicles (HEV/PHEV): Power electronics connectors, dual-powertrain control modules
- Motorcycles: Compact ECU connectors, dashboard interface connectors
- Off-Highway Vehicles: Configurable control modules for construction and agricultural equipment
Why Dummy Seals Are Essential
Dummy seals play a critical role in maintaining connector integrity:
- IP67/IP68 Protection: Maintains waterproof rating even with unused cavities
- Variant Management: Same connector housing used across vehicle variants with different wire configurations
- Future Expansion: Seals positions reserved for future feature additions or market-specific options
- Cost Efficiency: Reduces connector housing variants by sealing unused positions
- Assembly Verification: grey colour provides visual confirmation of correctly sealed unused positions
- Quality Assurance: Ensures complete environmental sealing passes end-of-line testing
Dummy Seal vs Connector Seal Comparison
Understanding the difference between dummy seals and connector seals:
- Dummy Seal: Solid plug that completely seals unused (empty) connector cavities
- Connector Seal: Has a centre hole to seal around a wire entering the connector
- Application: Dummy seals for unused positions, connector seals for wired positions
- Both Provide: IP67/IP68 waterproof protection when properly installed
Industry Standards & Compliance
Our dummy seals are manufactured to meet stringent automotive industry requirements:
- IP67/IP68 Protection: Dust-tight and water immersion resistant when properly installed
- Temperature Range: -55°C to +200°C continuous operation
- Material Compliance: RoHS compliant, REACH compliant, ELV compliant
- Quality Certification: Manufactured under ISO 9001:2015 and IATF 16949:2016 quality management systems
- Automotive Testing: Tested per OEM specifications for compression set, thermal aging, and weathering
- PPAP Support: Full Production Part Approval Process documentation available
Why Choose Silicone Material for Connector Seals?
Silicone Rubber (VMQ) is the preferred elastomer for high-temperature automotive connector seals due to its unique combination of properties:
- Extreme Temperature Range: Operates from -55°C to +200°C continuous, with intermittent capability to +230°C
- UV and Ozone Resistance: Excellent weathering resistance for exterior and exposed applications
- Low Compression Set: Maintains sealing force over extended periods even under thermal cycling
- Excellent Low-Temperature Flexibility: Remains flexible in extreme cold where other materials become brittle
- Electrical Insulation: Good dielectric properties for high-voltage EV applications
- Long Service Life: Resistant to aging, oxidation, and degradation over time
Looking for a different material? ARPL also manufactures connector seals in NBR for oil-resistant applications (-40°C to +120°C), EPDM for weather sealing, HNBR for combined oil resistance and higher temperature, and FKM (Viton) for extreme chemical and temperature resistance. Contact our engineering team for material selection assistance.
Need Custom Sealing Solutions?
Our engineering team can develop tailored solutions for your specific requirements. From material selection to custom designs, we're here to help.
Frequently Asked Questions
Find answers to common questions about dummy seals for automotive connector applications
A dummy seal (also called dummy plug seal or blank seal) is a sealing component used to seal unused cavities in automotive connector housings. Unlike connector seals that seal around wires, dummy seals are solid plugs that completely seal empty positions. Dummy seals provide IP67/IP68 waterproof protection for unused wire positions in multi-pole connectors.
A connector seal seals around a wire entering the connector housing, while a dummy seal seals an unused cavity where no wire is present. Connector seals have a centre hole for the wire, while dummy seals are solid plugs. Both provide IP67/IP68 environmental protection but serve different purposes in multi-pole connector applications.
ARPL offers silicone dummy seals (VMQ/HCR/LSR) for high temperature applications (-55°C to +200°C), NBR dummy seals for oil-resistant applications (-40°C to +120°C), and EPDM dummy seals for weather resistance. Silicone dummy seals are the most common choice for automotive wiring harness applications.
Dummy seals are used in automotive wiring harness connectors with unused cavities, ECU connectors, sensor connectors, EV battery connectors, body control modules, and any multi-pole connector where some wire positions are not used. Grey dummy seals provide easy visual identification during assembly operations.
Yes, ARPL is a dummy seal manufacturer offering custom development from customer drawings or samples. We provide various materials (silicone, NBR, EPDM), colors for easy identification, and configurations with RoHS REACH compliant materials and full PPAP documentation support.
Yes, ARPL is an ISO 9001 and IATF 16949 certified dummy seal manufacturer exporting to OEMs and Tier-1 wiring harness manufacturers in Germany, USA, Mexico, Turkey, Brazil, UK, UAE, Thailand, Vietnam, Poland, Czech Republic, and Hungary—major automotive manufacturing hubs worldwide.
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