Closures DIN18
Glass Dropper, Glossy White, 71 mm
White glossy dropper, 71 mm – drop-by-drop dispensing for serums and oils Dropper with an 18/410 threaded cap simultaneously seals the bottle and dispenses its contents drop by drop. full description
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Product description
White glossy dropper, 71 mm – drop-by-drop dispensing for serums and oils
Dropper with an 18/410 threaded cap simultaneously seals the bottle and dispenses its contents drop by drop. It is particularly suitable for products where precise and clean extraction of a small amount matters: facial serums, oil serums, essential oil blends, tinctures, oil bath concentrates, and active ingredients that are added to finished formulations drop by drop. The white glossy cap gives the bottle a clean, simple look and pairs well with amber, blue, frosted, and clear glass.
The dropper consists of three parts: a glass tube that is immersed in the contents, a silicone bulb for squeezing, and a cap made of polypropylene (PP) with a thread that seals the bottle. The packaging is suitable for use with cosmetic products; a declaration of conformity is available with the product.
Key benefits
- Drop-by-drop dispensing – squeezing the bulb draws up a small amount of contents and dispenses it directly onto the fingers or skin. Only as much as needed is taken, and the rest remains in the bottle without unnecessary contact with air and hands.
- Glass tube – glass does not react with oils, essential oils, or alcohol-based contents. The dropper is therefore also suitable for concentrated and aromatic products where a plastic tube could soften or absorb the scent over time.
- Cap and dispenser in one – the bottle does not need a separate cap; the dropper seals it at the same time. After use it is simply screwed back on.
- Neutral appearance – the white glossy cap is unobtrusive, lets the label and the colour of the glass stand out, and suits a variety of brand styles.
Practical use
The dropper is designed for bottles with an 18/410 neck. The length of the glass tube should match the height of the bottle: the tube should reach almost to the bottom so that the remaining contents can also be drawn up, but it must not rest against it so that the dropper can be screwed on without problems. Bottles with this neck type and ready-made bottle + dropper combinations are available in the Handymade range. With your own combination, we recommend verifying the seal, tube length, and behaviour of the packaging with the specific formulation.
The dropper works best with liquid and thin contents: oils, oil serums, water-based and gel serums with low viscosity, tinctures, and alcohol-based extracts. Thicker gels and emulsions are difficult to draw into the tube and will not form a drop. For these, a pump or jar is more suitable.
Store and transport the bottle with the dropper upright. When the contents are in prolonged contact with the silicone bulb – particularly with essential oils and alcohol-based products – the bulb may soften or absorb the scent over time. During normal use, the contents do not come into contact with the bulb.
Good to know
Before first filling, we recommend washing and sanitising the dropper with isopropyl alcohol or ethanol and letting it dry completely, including the inside of the glass tube. When manufacturing for sale, the cleanliness of the cap is just as important as the cleanliness of the bottle, because the tube returns to the contents with each use.
The dropper can be used repeatedly if it is thoroughly cleaned after emptying the bottle and the tube is not damaged. The silicone bulb withstands normal cleaning with warm water and washing-up liquid, but it should not be soaked in solvents for an extended period. The glass tube is fragile. It may break if the bottle is dropped or screwed on with excessive force, so check that it is intact after handling.
Screw on with care. Sufficiently firm tightening ensures a tight seal; excessive force can damage the cap thread or the tube. With oil-based contents, it is worth checking before dispatching to a customer that laying the bottle on its side does not cause leakage around the thread.
The dropper is not a child-resistant closure and does not prevent opening. Products containing concentrated essential oils or other ingredients that must be kept out of reach of children should be labelled accordingly on the label.
Frequently asked questions
Parameters
Product documentation
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