White Plastic Cap, 28/410

A screw-on cap 28/410 made of flexible LDPE plastic seals bottles and small bottles with the same neck type. It is a basic closure without a dispensing opening, intended wherever you need to securely seal the contents and dispense by simply pouring – for example tonics, hydrolates, liquid soaps or body oils that the customer uses directly from the bottle or decants into a smaller container.

Thanks to its taller build, the cap is easy to grip even with wet fingers in the shower and does not require much force to tighten. The white version can be combined with both glass and plastic bottles of various colours.

Key benefits

• Reliable sealing – the 28/410 thread holds firmly and the contents do not leak during normal storage or transport in a bag.
• Flexible material – LDPE is a softer plastic that conforms to the bottle neck when tightened, improving the seal.
• Simple dispensing – without an insert or dropper, the contents pour directly from the bottle, which suits products used in larger quantities.
• Light and durable – the cap withstands drops and repeated opening without damage.
• Neutral appearance – the white colour does not compete with the label and suits most packaging ranges.

Use and combinations

The cap is intended for bottles with a 28/410 neck, i.e. with a thread diameter of 28 mm. The neck type is listed in the parameters for each bottle, so you can verify the right combination before purchasing. Ready-made bottle + closure sets and other closures with the same neck type are available in the Handymade range. With a custom combination, we recommend verifying the seal with the specific bottle and formulation.

Works best with products of liquid to medium-thick consistency: tonics, hydrolates, oils, shower gels, shampoos, liquid soaps, body milks and massage oils. For thick creams or balms, a jar or container with a wide neck is more practical, from which the contents are scooped.

Good to know

Preparation and reuse. Before filling for the first time, wash the cap and allow it to dry completely. Residual water in the thread can dilute the contents or weaken the preservation. The cap withstands repeated opening – when changing the contents, simply wash and disinfect it again. If the thread is visibly worn or the cap does not seal after tightening, replace it with a new one.

Temperature and material. LDPE is a soft plastic sensitive to higher temperatures. Seal the bottle only after the contents have cooled to room temperature, otherwise the cap may deform and lose its seal.

Essential oils and solvents. With prolonged contact with concentrated essential oils, fragrance compositions or alcohol-based products, the plastic may absorb the scent or soften. Do not use such a cap for another product, and verify the behaviour of the packaging in advance at high concentrations.

Suitability for cosmetics. The packaging material is suitable for use with cosmetic products and meets the applicable legislative requirements. The declaration of conformity is available with the product. At end of life, the cap should be placed in plastic recycling collection.

Frequently asked questions