Plastic Cap, 24/410, Matte White

The 24/410 plastic cap in matte white is a simple screw closure for bottles with a 24/410 neck finish. It provides a secure seal where dispensing is not required – the contents are poured or scooped directly from the bottle. It is particularly suitable for tonics, facial and body oils, micellar waters, liquid soaps and shampoos in refill bottles, as well as for technical liquids such as household cleaners or workshop solutions.

It is made from polypropylene (PP), which is lightweight, shatterproof when dropped, and resistant to common cosmetic ingredients. The matte white surface has a neutral appearance, fingerprints are less visible on it, and it coordinates with white, clear and coloured bottles. A single cap type allows you to unify the look of an entire product line.

What the cap is for

• Closure without dispensing – simple opening and closing for contents that are poured into the palm, onto a cotton pad or into a measuring cup.
• Refill and transport packaging – bottles of finished product before decanting into dispensers, raw material samples, intermediate products during production.
• Cosmetic and technical grade – the same cap works for both cosmetic products and technical preparations, so there is no need to stock two types of closures.
• Consistent line appearance – the matte white colour can be combined with bottles of various volumes and materials, provided they have the same neck type.

Bottle selection and compatibility

The cap fits bottles with a 24/410 neck finish. The first number indicates the neck diameter in millimetres; the second denotes the thread type – a single thread and standard neck height. Bottles with the same neck type as well as ready-made bottle and cap combinations are available from Handymade. The thread type is listed in the parameters for each container. When creating your own combination, we recommend verifying the seal and the packaging behaviour with your specific formulation.

When filling the bottle, follow the nominal volume, not the brimful capacity. The nominal volume is the amount the bottle is designed to hold under normal filling conditions. The brimful capacity is the physical volume up to the neck. The difference between them allows for the cap and for expansion of the contents when the temperature changes. A bottle filled right to the neck may overflow when the cap is screwed on, and the contents can reach the thread where they then stick or dry out.

Good to know

• Material resistance – polypropylene withstands aqueous and oily contents, surfactants, alcoholic solutions and common cosmetic acids and bases at the concentrations used in formulations. With concentrated essential oils, fragrance compositions and solvents, verify the cap's behaviour through extended contact with the contents, as some components may soften or discolour the plastic over time.
• Preparation before first filling – the cap is supplied clean, not sterile. Before use, we recommend washing it, disinfecting it with isopropyl alcohol or ethanol and allowing it to dry completely, so that neither water nor disinfectant residues get into the contents.
• Tightening – tighten the cap firmly by hand, not with force. Over-tightening can deform the thread, which will worsen rather than improve the seal.
• Reuse – the cap can be used multiple times if the thread is undamaged and the cap has been thoroughly washed. When changing the fragrance of the contents, it is better to use a new cap.
• Contact with cosmetics – the packaging material is suitable for use with cosmetic products; the declaration of conformity is available with the product.
• Recycling – the cap is made of polypropylene and should be placed in the sorted plastic waste collection after use.

Frequently asked questions