Sierra Screw cap

The child-tamper evident screw cap PP28 Sierra is designed to provide secure closure with visible tamper evidence and child-resistant functionality. Crafted in black PP with a violet Phan liner, this cap features a fine-ribbed, matte surface and a PP28 thread that pairs with the Aquarius and Aguila bottle families. The Sierra design incorporates a thicker rim, retention fingers on the tear strip, and a push-and-turn opening mechanism that requires deliberate action to access the contents.

Why Choose the Child-Tamper Evident Screw Cap PP28 Sierra

This closure combines child-resistant functionality with visible tamper evidence, supporting product safety and consumer confidence. The Sierra design features a thicker rim and retention fingers that make manipulation more difficult, while the push-and-turn mechanism requires deliberate action that resists casual opening by children. The violet Phan liner creates a hermetic seal that protects contents from oxygen and moisture. When paired with Miron glass bottles, which selectively filter portions of sunlight to help maintain the vitality and purity of your formulation, this cap supports both product integrity and a premium presentation.

Benefits of the Child-Tamper Evident Screw Cap PP28 Sierra

• PP28 thread ensures compatibility with Aquarius and Aguila bottle families
• Child-resistant push-and-turn mechanism requires deliberate action to open
• Tamper-evident tear strip with retention fingers provides visible indication of first opening
• Violet Phan liner with EPE foam core creates hermetic seal, protecting contents from oxygen and moisture
• Fine-ribbed matte black surface supports secure grip during opening
• High-quality PP material offers chemical resistance for diverse formulations
• Top illustration guides proper opening technique

Key Properties of the Child-Tamper Evident Screw Cap PP28 Sierra

This closure has a height of 24.7 mm and a diameter of 34.4 mm. The weight is 7 grams. The PP28 thread defines bottle compatibility and determines how the closure is applied. The cap is made from polypropylene (PP), while the tamper-evident ring is crafted from PEHD.

The violet-colored sealing element is made from Phan, a three-layer laminated material consisting of two outer layers of PET film and an inner layer of EPE foam with a thickness of 2 mm. The foam core compresses to create an airtight seal that protects against oxygen and moisture ingress.

Available Sizes, Variants and Applications

The child-tamper evident screw cap series is available in PP28 thread format, compatible with multiple bottle sizes within the Aquarius and Aguila families. This thread standard supports consistent closure performance across your product range, allowing you to maintain uniform safety features and presentation while offering different capacities.

Inspiration for Use in Health & Well-Being or Food & Beverage

The child-tamper evident screw cap PP28 Sierra suits liquid supplements, tinctures, syrups, essential oil blends, and other formulations where child safety, tamper evidence, and hermetic sealing are priorities. The combination of child-resistant functionality and visible tamper indication supports regulatory compliance and consumer confidence in product integrity.

Ordering the Child-Tamper Evident Screw Cap PP28 Sierra from Miron

The child-tamper evident screw cap PP28 Sierra is packaged in units of 24 pieces and can be ordered in multiples thereof, with pallet quantities of up to 40,000 pieces available. Production takes place in Europe according to ISO-certified processes. Our sales and support team is ready to advise you in choosing the right combination of bottles and closures.