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Plastic Drum Cap Seal
A Coloured Seal That Shows the Drum Has Been Opened


What This Product Is
A polyethylene cap seal in 77mm, 81mm, 86mm and 87mm, supplied in red, green, blue or a customised colour. It fits over the closure of a plastic drum to give a tamper-proof and waterproof cover, and is applied and removed without tools.
Key Benefits
- The seal must be broken to reach the closure, so tampering is visible
- A waterproof cover keeps moisture out of the closure recess
- Four sizes from 77mm to 87mm cover the usual plastic drum closures
- Colour choice allows product coding without extra labelling
What Goes Wrong Without It
- A closure alone gives the receiver no evidence that a drum was opened in transit
- Rain and washdown water sit in the closure recess and track into the thread
- Mixed product on the same pallet is hard to tell apart at a distance
Application Scenarios
- Chemical fillers shipping drums through multiple handling points
- Distributors who need visible security on outbound stock
- Plants that colour code drums by product or by grade
Technical Data
| Material | PE |
|---|---|
| Size | 77mm/81mm/86mm/87mm |
| Color | Red/Green/BlueCustomized |
| Note | Water-proof and tamper-proof |
Figures above are taken from the product documentation. Anything not listed is confirmed at enquiry rather than estimated.
Features and Advantages
Features
- Easy to install and remove
- Customized color
- Prime material
- Tamper proof and water proof
Advantages
- Provides a secure seal for plastic drums
- Easy to apply and remove, saving time and effort in the sealing process
- Can be customized with different colors
- Provides a cost-effective solution for sealing drums, reducing the risk of product loss or damage
How to Specify and Use It
Measure the closure and select 77mm, 81mm, 86mm or 87mm
Fit the seal over the closed bung after filling and sealing the drum
Check the seal is intact at each handover point in the chain
Remove the seal at the point of use and fit a fresh one if the drum is resealed
Comparison With Other Products
The cap seal is a secondary security cover, not a closure. The plastic drum closure itself is what seals the drum; the cap seal goes over it. Both are usually specified together on regulated or high value product.
Customisation
Sizes, colours and materials can be adapted where the product allows it, and branding can be applied to closures and cap seals. Confirm the change you need when you send the enquiry.
Quality Control
United Packaging operates a professional quality control system under ISO 9001 certification, following quality management procedures intended to minimise the risk of defects.
Other Items in Plastic Drum Closures

Plastic Drum Closure
Bung Plugs for Plastic Barrels in Five Sizes
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Steel Drum Closures 2" and 3/4"
Bung Closures for Closed Head Steel Drums
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Pull Out Spout Closure for Metal Containers
A Pull Out Spout That Fits a Metal Can
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Drum Cap Seals 2" and 3/4"
Tinplate and Aluminium Seals for 2 Inch and 3/4 Inch Bungs
View detailsQuestions About Plastic Drum Cap Seal
Which sizes are available?
77mm, 81mm, 86mm and 87mm.
What colours are offered?
Red, green, blue and customised colours.
What is it made from?
Prime PE material.
Is it tamper-proof?
Yes, and it is also waterproof.
Does it replace the drum closure?
No, it fits over the closure as a secondary seal.
Is it easy to apply?
Yes, it applies and removes without tools.
Get a Price on Plastic Drum Cap Seal
Send the quantity, the specification variant and your destination port. We will come back with pricing and lead time.
