Closed Rubber Grommets
Closed rubber grommets, also referred to as blanking grommets, are used to seal unused holes in panels, enclosures and electrical housings. These push-fit grommets provide a secure, airtight seal that protects against dust, moisture and debris, helping maintain enclosure integrity and protect internal components.
Manufactured from durable TPE and PVC materials, these closed grommets offer reliable flexibility and long-term performance across a wide range of industrial and electrical applications. The closed centre design allows quick, tool-free installation with no adhesives required, ensuring a tight, permanent fit once installed. Commonly used in control panels, switch boxes, machinery housings and electronic enclosures, these blanking grommets are supplied in a range of sizes to suit standard panel cut-outs, with UK-held stock available for fast supply.
Available Materials and Style Options:
- TPE (Thermoplastic Elastomer) - High flexibility and durability
- PVC (Polyvinyl Chloride) - Chemical and weather resistance
- Standard black finish for professional appearance
- Round closed design with solid centre section
- Push-fit installation style
- Panel thickness compatibility from 0.8mm to 4mm
- Mounting hole diameters from 6.4mm to 42mm
Key Features and Benefits:
- Airtight seal prevents dust, moisture, and debris ingress
- Resistance to weathering, UV, acids, and alkalis
- Flame-retardant properties for enhanced safety
- Push-fit installation without adhesives or tools
- Flexible rubber construction for secure panel grip
- Compliance with building and electrical regulations
- Weather-resistant for outdoor applications
- Anti-vibration properties for industrial environments
- Chemical resistance for harsh operating conditions
- Long service life with minimal maintenance requirements
Common UK Use Cases:
- Electronics enclosures and control panels - sealing unused cable entry points to maintain IP ratings
- Automotive applications - dashboard panels and under-bonnet electrical housings
- Industrial machinery - blanking holes in equipment panels and junction boxes
- Construction projects - electrical back boxes and consumer units requiring hole sealing
- Telecommunications equipment - outdoor enclosures needing weather protection from unused entries
Related Vital Parts Products:
- Open Rubber Grommets - For cable protection and threading applications
- Strain Relief Cable Glands - IP-rated cable sealing solutions
- Metal Cable Glands - Heavy-duty cable entry systems
- Snap In Cable Glands - Tool-free cable management solutions
Call Vital Parts:
For quick quotes, same-day dispatch, custom sizes, or bulk discounts, call our sales line on 01233 713 581. Businesses can register for a Vital Parts Business Account to benefit from priority shipping, trade pricing, free product samples, credit accounts, and a dedicated account manager.
Frequently Asked Questions
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While browsing the website you may come across abbreviations used for material names that you are unfamiliar with. You can find an explanation for these in our material abbreviations guide.