White Plastic Bottle, HDPE, White Flip Top, 100 ml

The HDPE plastic bottle with a white flip top cap is a ready-made set for packaging liquid and semi-liquid cosmetic products with a volume of 100 ml. The bottle, made of opaque white HDPE, shields the contents from light better than clear plastic, is lightweight, unbreakable and squeezable, so the product is dispensed directly through the opening in the cap. The flip top cap opens one-handed with your thumb and, once closed, protects the opening from dust and the contents from drying out.

The 100 ml volume suits travel packaging, samples for customers and home formulations that are used up within a few weeks. The set as a whole is declared as suitable for contact with cosmetics. Only the cap has a separate certificate for direct food contact, so we offer the set for cosmetic use.

Suitable uses

• Shower gels and liquid soaps – squeezing the bottle dispenses the amount into your palm, and the cap can be opened even with a wet hand.
• Shampoos and conditioners – thicker contents flow out in a controlled way, and the flip top stays closed in the shower.
• Body lotions and light creams – for emulsions that still flow, squeezing works better than scooping from a jar.
• Facial toners, hydrolates and tonics – thin contents flow out of the flip top faster, so test the dispensing first. For spraying, a fine mist sprayer with the same neck finish is more suitable.
• Massage and body oils – pure vegetable oils as well as oil blends that are dispensed into the palm.

Nominal and total volume

The nominal volume is the amount the packaging is designed for under normal filling. The total brimful volume is the physical volume of the bottle up to the neck and is usually slightly larger. The difference between them is a reserve for the cap and for the expansion of the contents with temperature changes, for example in a bathroom or in a car. The bottle should therefore be filled to the nominal volume, not to the brim. An overfilled bottle is harder to squeeze once closed, and the contents may squirt out when it is opened.

Use and filling

Before the first filling, wash the bottle and the cap, disinfect them with isopropyl alcohol or ethanol and leave them to dry completely. Moisture remaining in the packaging can spoil a water-based product sooner than its preservation would suggest.

Fill only cooled contents. HDPE is a plastic, and a hot emulsion or gel straight after production may deform the bottle. Let the emulsion cool to room temperature while stirring, and only then fill.

After filling, tighten the cap by hand. For your own combination of packaging and closure, check the seal, the dispensing and the behaviour of the packaging with your specific formulation, for example by leaving the filled bottle on its side overnight. You can find other closures with the same neck type and ready-made combinations of bottle and closure in the Handymade range.

Good to know

HDPE withstands water-based products, emulsions, surfactant preparations and vegetable oils. For contents with a higher proportion of essential oils, solvents or alcohol, run a test on one bottle. After several weeks, check that the plastic has not softened or changed colour and that the cap still seals.

After thorough washing and disinfection, you can reuse the bottle and the cap, preferably for the same type of product. The scent of the previous contents cannot always be removed from the plastic completely and may carry over when the formulation changes.

The bottle is made of HDPE and the cap of polypropylene. Both materials are recycled as plastic, and it is enough to rinse the packaging before disposal.

Frequently asked questions