Hollow Bung 42-50 mm | Large Tapered Bung | Silicone Rubber


  • Small End: 42 Diameter
  • Large End: 50 mm Diameter
  • Length: 25 mm
  • Lower cost than solid bungs
  • Resist extreme temperatures up to 315° C
  • Large range to cover larger holes
  • Ideal for masking during electro-static powder coating


396 in stock (can be backordered)


Silicone Rubber Hollow Bung 42mm - 50mm
  • Resist extreme temperatures up to 315° C
  • Small End: 42 mm Diameter
  • Large End: 50 mm Diameter
  • Length: 25 mm
  • Lower cost than solid bungs
  • Large range to cover larger holes
  • Ideal for masking during electro-static powder coating

Bakewell Hollow Bung

The hollow bung is a quick and simple method for plugging holes.

The hollow bung or BAKEWELL HOLLOW BUNG offer a price advantage over solid bungs, as there is less material used in their manufacture.

Used for:

  • Powder coating
  • Anodising
  • Electroplating
  • Hydrodipping

Next day delivery

Whatever purpose you want hollow bungs for, there are tons of options and most are in stock for next day delivery.

Silicone Rubber Hollow Bung Sizes

Part Number "A" (mm)"B" (mm)"C" (mm)Bag QtyAdd to Cart

£70.00Add to basket


£85.00Add to basket


£90.00Add to basket


£85.00Add to basket


£110.00Add to basket


£115.00Add to basket


£60.00Add to basket


£60.00Add to basket


£70.00Add to basket


£85.00Add to basket


£90.00Add to basket


£60.00Add to basket


£60.00Add to basket


£85.00Add to basket


£105.00Add to basket


£120.00Add to basket


£85.00Add to basket


£50.00Add to basket


£70.00Add to basket


£95.00Add to basket


£125.00Add to basket


£95.00Add to basket


Using Silicone Rubber Hollow Bung

The BAKEWELL HOLLOW BUNG are manufactured from temperature resistant silicone rubber, making them particularly suitable for masking products, or plugging up holes in high temperature environments, such as stoving ovens, during electro-static powder coating.

After processing, the Silicone Rubber Hollow Bung is simply removed, while the component is still hot. Any coating build up can be removed manually, or in a rumbler. The high temperature resistance means they can be re-used over and over.

Silicone Rubber Hollow Bung – The Material

Manufactured from silicone rubber, Silicone Rubber hollow bung or BAKEWELL HOLLOW BUNG are ideal for masking during electro-static powder coating, stove enamelling, E-Coat, plating and anodising.

Silicone Rubber

Incredibly versatile material with high temperature resistance and outstanding sealing properties. Available in a massive range of colours, Silicone rubber can be moulded and extruded with precision to supply durable quality products and components.

Technical InformationRead more about Silicone Rubber.
EPDM Rubber

A versatile material with excellent waterproofing, electrical insulation and noise reducing qualities, with good resistance to ketones, ordinary diluted acids, and alkalies.

Technical InformationRead more about EPDM Rubber.
Viton Rubber
Viton is a brand of synthetic rubber and fluoropolymer elastomer commonly used in O-rings, chemical-resistant gloves, and other moulded or extruded goods. The name is a registered trademark of The Chemours Company.

Technical InformationRead more about Viton Rubber.

They will also resist extreme cold without deterioration, in industrial and laboratory applications. The range covers HOLLOW BUNG to plug holes 24mm diameter up to in excess of 160mm diameter.

If you have a hole to fill that the sizes listed don’t cover, give us a call. There’s loads of stuff we can supply that isn’t listed. AFAC technicians are on hand to help you solve your plugging and capping issues. Customers can call us during office hours for assistance.

With millions of parts on the shelf, AFAC offers customers a variety of choices to suit most masking applications. As well as the stock lines, AFAC also produces custom made mouldings, extrusions and self adhesive shapes. With customers all over the country and around the World, AFAC can be relied on to deliver quality products at affordable prices for any size of business.

As well as high temperature masking supplies, AFAC also offers wet-spray friendly masking products made using EPDM rubber.


Additional information

Part Number

HBG-023.0-027.0, HBG-024.0-027.9, HBG-026.2-032.0, HBG-027.0-034.0, HBG-027.8-030.0, HBG-030.0-037.0, HBG-030.2-036.5, HBG-031.0-039.0, HBG-033.0-041.0, HBG-033.3-041.3, HBG-036.0-043.0, HBG-037.0-045.0, HBG-037.3-044.4, HBG-038.0-046.0, HBG-042.0-050.0, HBG-045.0-053.0, HBG-048.0-056.0, HBG-050.0-062.7, HBG-054.0-063.5, HBG-054.0-064.0, HBG-057.9-068.3, HBG-061.9-075.0, HBG-061.9-075.1, HBG-068.0-082.0, HBG-072.6-076.4, HBG-074.9-090.0, HBG-075.0-090.0, HBG-076.2-088.9, HBG-082.5-101.6, HBG-083.0-103.0, HBG-088.9-127.0, HBG-111.0-140.0, HBG-130.0-160.0, HBG-160.0-190.0, HBG-30.1-36.5

Size (mm)

24 – 28 x 25, 27.8 – 30 x 25, 33 – 41 x 25, 42 – 50 x 25, 45 – 53 x 25, 50 – 62.7 x 25, 58 – 68 x 25, 68 – 82 x 25