• Plastic plugs
  • Bottle lids

Sealing Your World

Duo Closures serves the plastic and steel drum markets with a range of metal plugs and flanges for steel drums and pilfer resistant crimp on Capseal ®. We also supply screw on plastic caps and screw in plugs for the plastic container industry.


Plastic Products

Plastic Products

These plastic closures are suitable for 20 to 50 litre plastic containers. The closure has a course thread and instead of a frustrum the closure is fitted with an induction seal. When screwed onto the neck of the filled container the complete pack is passed under an Induction Sealing machine which seals the induction seal to the neck of the container and thus is now tamper evident, (much the same way as the sealed coffee jars). Our range includes

Plastic taps, plugs caps and washers.

Tab Seals Products

Metal Products

We supply high grade tinplate Capseals ® / Tab Seals which are colour coated on the outside face and lacquered with food grade lacquer on the inside face. We carry both hand and pneumatic closing (crimping) tooling for these Tab Seals / Capseals ®.

Our steel plugs are manufactured to International standards under ISO 9001 and can be supplied in both 19mm and 52mm.

Crimping closing tools


We have a range of tools that are used in conjunction with some of our products. These include Capseal ® crimping tools, pail closing  tools and Capseal ® Remover and Plug Tightening Spanners. The tools are hand operated but pneumatic ones can be supplied.

© Copyright © 2018 Duo Closures CC 2018.
Lanner Road, New Germany, Natal, South Africa
Company Number 200007135823, BBBEE Certificate Number DC125/09/214