18-415 White Tamper Evident Cap with LDPE Orifice Reducer Insert | Euro Dropper Cap Supplier
Product Overview

This 18-415 white tamper evident cap with LDPE orifice reducer insert is designed for Euro dropper bottles (1 oz / 30 ml), providing a secure, leak-resistant, and controlled dispensing solution for a wide range of liquid products.

Featuring a ribbed polypropylene (PP) screw cap with tamper-evident band, this closure ensures product integrity by providing visible evidence of first opening. As a professional Euro dropper cap supplier, we offer stable bulk production and consistent quality for essential oil, cosmetic, and chemical packaging.

The integrated LDPE orifice reducer insert (0.9 mm opening) enables precise, drop-by-drop dispensing, making it ideal for formulations requiring controlled flow and reduced waste.

Key Features
Tamper Evident (TE) Design for Product Safety
Breakable band provides visible evidence of first opening
LDPE Orifice Reducer for Controlled Dispensing
0.9 mm opening ensures consistent drop-by-drop flow
Designed for Euro Dropper Bottles (18-415)
Compatible with 1 oz (30 ml) Euro bottles and standard 18-415 neck finish
Ribbed PP Cap for Enhanced Grip
Improves handling and ensures secure closure
Integrated Insert System for Leak Control
Insert remains in bottle, reducing leakage and improving dosing accuracy
Durable & Chemical-Resistant Materials
Suitable for essential oils, dyes, and chemical formulations
Bulk Supply with Stable Quality
Ideal for brands and distributors requiring consistent production
Specifications
Neck Finish: 18-415
Cap Material: Polypropylene (PP), Ribbed Skirt
Insert Material: LDPE (Low-Density Polyethylene)
Tamper Evident Ring: HDPE
Orifice Size: 0.9 mm
Color: White
Compatibility: 1 oz (30 ml) Euro dropper bottles and 18-415 bottles
Applications

This tamper evident euro dropper cap with orifice reducer is widely used for:

Essential oils
CBD oils
Fragrance oils
Inks and dyes
Chemical solutions
How It Works
When the cap is fully tightened, the orifice reducer insert is pressed securely into the bottle opening.
When inverted, the insert allows controlled, drop-by-drop dispensing.
Upon first opening, the tamper-evident ring breaks, indicating the product has been opened while the insert remains in place.
Material Advantages
PP (Polypropylene)
High fatigue resistance and high melting point (up to 160°C / 320°F), ensuring durability
HDPE (Tamper Ring)
Strong, impact-resistant, and chemically stable
LDPE (Orifice Insert)
Flexible and ideal for controlled liquid flow
Customization Options

We offer flexible customization to support your packaging needs:

Cap color customization
Orifice size adjustment
Insert material options
Logo printing and decoration
Why Choose Us
25+ years of packaging manufacturing experience
Integrated plastic and glass packaging solutions
In-house mold development and customization
Stable bulk production with reliable lead times
Trusted supplier for essential oil and CBD packaging
FAQ

Q1: What is an orifice reducer?
It is an insert placed inside the bottle neck that controls liquid flow for precise dispensing.

Q2: Is this cap child-resistant?
No, this is a tamper-evident cap, not a child-resistant closure.

Q3: Does the insert come pre-assembled?
Yes, the insert is integrated with the cap and properly seats during application.

Q4: What bottles is this compatible with?
It fits 1 oz (30 ml) Euro dropper bottles and any bottle with an 18-415 neck finish.