The AC500 Seal or 500mm Seal is a variable length seal manufactured from two dissimilar materials. The seal lock metal insert is durable and will give extra security, whilst the polypropylene body is long and flexible making it easier for use. The AC500 Seal design includes a hot melt welded cap to secure the insert to the body, which provides clear evidence of tampering if forced open or cut. 

AC500 Seal is suitable for use in cash bags, refinery or post bags that require higher breaking strength. In comparison with Acme F Seal, AC500 Seal breaking strength is higher by 80% which makes it harder to tamper with.

Besides, the AC500 seal is biodegradable and safe for environment.

Recommended applications

Refineries, Warehouses, Cash bags, Postbags, Mailrooms.



Polypropylene with Biodegradable additives

Stainless Steel


Available Operating Length

44.5cm (overall 50cm)


Ribbon Diameter



Tag Marking Dimensions

18mm x 30mm


Average Breaking Strength




Laser or Foil marking

Consecutively numbered as standard

Optional Customer name/logo

Optional Laser Barcoding



Foil marked: red, blue, green, yellow, orange, black, white.

Laser or Foil marked: pastel shades of pink, blue, green,

yellow, peach, also black and white.

Other colours may be available on request. 


Acme F Seal datasheet (82kb)

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Do you know that you can customise our products by imprinting your company logo on to our seals?