Name: 30 pcs - 500ml Clear Pharmaceutical Bottle with Black Anodized Aluminium Cap
Brand: AwGift
SKU: CGMB-04AB
Price: 29718 HUF
Availability: InStock

Question 1

What is the difference between the black anodised and the plain aluminium cap?

Accepted Answer

The silver (natural) aluminium cap (CGMB-04AC) shows the colour of the untreated metal, which is bright, neutral, and technical in appearance. The black anodised version (-AB) has been through an electrochemical anodising process, producing a durable, deep black protective layer. Their functionality is identical — both are airtight, corrosion-resistant, and chemically inert — the difference is purely aesthetic and durability. The black cap gives a premium, exclusive look; the silver one feels more laboratory or clinical.

Question 2

Does the black anodised finish keep its colour after long use?

Accepted Answer

Yes. The anodising process does not apply paint to the surface; instead, the top layer of the aluminium is converted into a porous oxide layer, which is then dyed and sealed. This means the black colour does NOT wear off due to mechanical friction or contact, and does NOT fade in UV light either. Only very strong acidic or alkaline media can damage it, which does not occur in cosmetic or aromatherapy use.

Question 3

Is the cap stable for preparations containing essential oils?

Accepted Answer

Yes, exceptionally stable. Aluminium is chemically inert, does not react with essential oils, and imparts no off-flavour or odour. High-terpene citrus essential oils, which can soften or crack plastic caps over time, leave no trace on the aluminium cap. The anodised surface also resists direct contact with concentrated essential oils — although long-term contact is in any case prevented by the internal liner.