Clear Silicone Snap-On Hole Plug T-Type Blanking Bung 2.5mm–30mm 40 Sizes | HomeDIYer
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Clear Silicone Snap-On Hole Plug | T-Type Blanking Bung | 2.5mm–30mm | 40 Sizes

HomeDIYer
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By HomeDIYer®

Price:
$2.20 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Clear Silicone Snap-On Hole Plug — T-Type Blanking Bung, 2.5mm–30mm, 40 Sizes

Unused holes in panels, pipes, tubes, and enclosures collect dust, allow moisture ingress, and leave an unfinished appearance. This transparent T-type snap-on silicone hole plug provides a clean, secure, waterproof blanking solution for round holes from 2.5mm to 30mm in diameter — pressing in from one side and locking in place without adhesive, fasteners, or tools.

Made from food-grade silicone (Shore hardness 40–50), rated from -40°C to +250°C, and resistant to UV, acids, alkalis, and corrosion. Available in 40 sizes from A=2.5mm to A=30mm (where A is the small-end insertion diameter). Prices from $2.20 per plug. Clear/transparent color — ideal for light-colored panels, glass, acrylic, and surfaces where a discreet, nearly invisible plug is required. Also available in black, white, and gray.

Suited for blanking unused holes in PVC pipes, steel pipes, aluminum panels, electrical enclosures, control panels, spray painting masking, and laboratory test tube plugging.

✅Sizing note: The size listed (A) is the small-end insertion diameter — the tapered stem that inserts into the hole. For a secure, non-falling seal, select a size one step larger than your measured hole diameter. Example: for a 10mm hole, select A=11mm or A=11.5mm for best retention and sealing.

✅ Key Features of This Clear Silicone Hole Plug

  • 🔘T-Type Snap-On Design: The T-shaped profile — a flanged cap with a tapered insertion stem — presses into the hole from one side and locks in place via the flange lip. No adhesive, no tools, no fasteners required. Removable and repositionable.
  • 🔭Transparent / Clear Color: The clear silicone material is nearly invisible once installed — ideal for light-colored panels, white surfaces, glass, acrylic, and any application where a discreet, color-neutral plug is preferred over black or white.
  • 🧲Food-Grade Silicone Material: Flexible, food-grade silicone (Shore 40–50) conforms to hole edges for a tight seal. Resistant to UV, ozone, acids, alkalis, and corrosion — suitable for indoor and outdoor applications.
  • 🌡️Wide Temperature Range −40°C to +250°C: Maintains flexibility and sealing performance in freezing outdoor conditions and high-temperature industrial or automotive environments, including powder coating oven masking.
  • 💧Waterproof & Dustproof Seal: The flanged T-profile creates a waterproof and dustproof barrier when correctly sized — suitable for IP-rated enclosure blanking, pipe end sealing, and moisture exclusion in outdoor panels.
  • 📏40 Sizes from 2.5mm to 30mm: Covers the most common small-to-medium hole blanking requirements in 0.5mm increments from 2.5mm to 14mm, then in 1mm increments from 15mm to 30mm — order the exact size for your application.

🎯 Who Is This For?

🔘Light-Colored Panels & White Surfaces

The clear/transparent color blends seamlessly with white, light gray, and natural-finish panels, acrylic sheets, and glass surfaces — providing a discreet, nearly invisible blanking solution where black plugs would be visually prominent.

⚡Electrical Enclosures & Control Panels

Blank unused cable entry holes in electrical enclosures, junction boxes, and control panels to maintain IP dust and moisture ratings. The clear color suits light-colored enclosures without the visual contrast of a black plug.

🚗Automotive & Spray Painting Masking

Use as spray plug masking during painting and powder coating to protect threaded holes and bores from paint ingress — silicone withstands oven curing temperatures up to 250°C and removes cleanly after the process.

🧪Laboratory & Industrial Tube Plugging

Seal test tubes, pipe ends, and tube openings in laboratory and industrial settings. Food-grade silicone is chemically resistant and suitable for use with a wide range of substances.

Specification Details
Material Food-grade silicone rubber
Shape T-type (flanged snap-on)
Color Clear / Transparent (black, white, gray also available)
Shore Hardness 40–50
Temperature Range -40°C to +250°C
Size Range (A) 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm
Chemical Resistance Acid, alkali, UV, ozone, corrosion resistant
Application Panels, pipes, tubes, enclosures, automotive, laboratory, spray masking
Installation Press-fit snap-on; no tools or adhesive required. Removable and reusable.
Price Range $2.20 (A=2.5mm) to $3.15 (A=30mm)

❓ Frequently Asked Questions

How do I select the correct size?

The size (A) refers to the small-end insertion diameter — the tapered stem that inserts into the hole. Measure your hole diameter accurately. Then select a plug size one step larger than your measured hole for a secure, non-falling fit. For example: if your hole measures 10mm, select A=11mm or A=11.5mm. Selecting the exact hole size may result in a loose fit that does not seal reliably.

Why choose clear over black or white?

Clear/transparent plugs are the best choice when: (1) The panel or surface is white, light gray, or a natural finish and a black plug would be visually prominent. (2) The plug needs to be as discreet as possible — for example, on acrylic panels, glass, or light-colored enclosures. (3) You want a color-neutral option that works across multiple surface colors without ordering multiple color variants.

Is this plug waterproof?

Yes — when correctly sized (one step larger than the hole), the T-type flange and tapered stem create a waterproof and dustproof seal. For IP-rated enclosure applications, ensure the plug is fully seated with the flange flush against the panel surface.

Can this plug be used for powder coating and spray painting masking?

Yes — the silicone material is rated to +250°C, making it suitable for use as a masking plug during powder coating, painting, anodizing, and plating processes. Insert the plug before the surface treatment process and remove after completion. Silicone does not bond to most coating materials.

Can the plug be removed and reused?

Yes — the snap-on design is removable. Pull the plug out from the flange side. Silicone retains its flexibility and shape after removal, so the plug can typically be reused multiple times provided it has not been damaged or permanently deformed.

What if I need a size larger than 30mm or a bulk quantity?

Larger sizes are available in other listings in our store. If you need a custom size or a bulk quantity order, please contact our customer service team with your size and quantity requirements.

🛒 Select your size above, then add to cart. Need a different color? Black, white, and gray variants are also available.

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