Poly Seal Screw Cap DGZZI 12PCS 28mm PP Resin Cover for Chemicals

Description

Product Overview

The DGZZI Poly Seal Screw Cap collection delivers twelve high‑quality caps engineered for a 28mm bottle neck. Crafted from brand‑new polypropylene (PP) resin, each cap combines chemical resistance with a sturdy, reusable design. The black finish not only provides a professional appearance but also adds UV protection for light‑sensitive contents. Dimensions are precisely calibrated: the caps fit bottles with a 28mm diameter, creating a seamless, leak‑free seal that maintains product integrity over extended storage periods.

The caps feature a unique spiral‑type sealing mechanism. When twisted onto a compatible bottle, the raised ridge around the entire circumference engages the bottle’s threading, generating uniform pressure that eliminates gaps. This design prevents carbonation loss, gas escape, and accidental spillage, making the caps ideal for volatile liquids, powders, and semi‑solid formulations. The PP material tolerates temperatures ranging from -20 °C to 120 °C, ensuring performance in both refrigerated and heated environments.

Technical specifications include a package size of 5.31 × 3.39 × 1.34 inches and a lightweight of 1.41 oz per set, facilitating easy handling and storage. The product holds an Amazon Best Sellers Rank of #383,178 in Industrial & Scientific and #62 in Lab Cap Plugs, reflecting strong market acceptance among laboratory professionals and industrial users alike. Each cap is individually inspected for dimensional accuracy and surface integrity, guaranteeing consistent performance across the entire 12‑piece set.

Designed for versatility, these caps serve a broad spectrum of applications—from pharmaceutical and cosmetic formulations to everyday chemical containers in research labs. Their reusable nature reduces waste and operational costs, aligning with sustainability goals while delivering reliable sealing performance day after day.

Usage

The Poly Seal Screw Caps excel in environments where product safety and stability are paramount. In pharmaceutical labs, they secure vials containing active ingredients, preventing contamination and preserving potency. Cosmetic manufacturers rely on the caps to protect creams, serums, and gels from oxidation and evaporation, extending shelf life and maintaining product quality.

Industrial users employ the caps for chemical storage drums, solvent bottles, and reagent containers. The caps’ resistance to corrosive substances such as acids, bases, and solvents ensures that the container’s exterior remains intact, while the internal seal safeguards the contents from external pollutants. Additionally, the caps are suitable for food‑grade applications, sealing sauces, extracts, and flavorings without imparting any off‑flavors or compromising food safety standards.

Installation is straightforward: align the cap with the bottle’s threading, apply gentle pressure, and rotate clockwise until the ridge engages fully. The tactile feedback of the ridge’s click confirms a secure fit, eliminating the need for additional tools or adhesives. Removal follows the same principle—simply rotate counter‑clockwise to release the cap without damaging the bottle or the cap itself.

Why Choose Us

DGZZI’s commitment to quality is evident in every aspect of the Poly Seal Screw Cap. Each cap undergoes rigorous testing for chemical compatibility, temperature endurance, and mechanical strength, ensuring that the product meets or exceeds industry standards. Our manufacturing process incorporates precision molding techniques that produce uniform wall thickness and consistent thread geometry, resulting in a flawless fit for every compatible bottle.

Customer satisfaction drives our after‑sales support. We provide responsive technical assistance, detailed installation guides, and a clear return policy for any defective units. Our dedication to continuous improvement means we regularly update the cap design based on user feedback, reinforcing our reputation as a trusted supplier for laboratory and industrial sealing solutions.

Key Features

• Durable PP resin construction resists chemicals, heat, and UV exposure for long‑term reliability.
• Spiral ridge design creates a uniform, leak‑proof seal that prevents gas escape and spillage.
• Reusable 12‑piece set reduces waste and lowers operational costs for frequent bottle changes.
• Easy‑install mechanism requires no tools, offering quick and secure closure in busy lab settings.
• Responsive customer support and clear warranty ensure confidence and peace of mind.

FAQ

What bottle sizes are compatible with these caps?

The caps are designed for bottles with a 28mm neck diameter. They fit standard laboratory, pharmaceutical, and industrial containers that use this threading size.

Can the caps be used with corrosive chemicals?

Yes. The polypropylene material is highly resistant to acids, bases, solvents, and other aggressive chemicals, making the caps suitable for a wide range of hazardous substances.

Are the caps suitable for food‑grade applications?

Absolutely. The caps meet food‑safety requirements and do not leach any unwanted substances, so they can safely seal sauces, extracts, and other consumable products.

How many times can a single cap be reused?

When used according to the manufacturer’s guidelines, each cap can be installed and removed dozens of times without loss of sealing performance, providing a cost‑effective solution for recurring use.

What is the temperature range for safe operation?

The caps maintain their integrity from –20 °C up to 120 °C, allowing use in refrigerated storage, ambient conditions, and heated processes without deformation.