Corning #1395-45HTSC Red Open Top High Temp PBT Screw Cap 180°C

Description

Product Overview

The Corning #1395-45HTSC red open‑top screw cap is engineered from high‑performance polybutylene terephthalate (PBT), a thermoplastic polymer known for its exceptional heat resistance, chemical stability, and mechanical strength. Certified to withstand continuous temperatures of up to 180 °C, this cap provides a dependable barrier against vapor loss, contamination, and pressure fluctuations, making it an ideal choice for demanding laboratory applications such as organic synthesis, polymer research, and high‑temperature chromatography. The cap features a precision‑machined GL45 thread that mates securely with standard laboratory glassware, ensuring a leak‑free seal while maintaining ease of installation and removal. Its vibrant red coloration not only aids in quick visual identification among a range of lab accessories but also signals its specialized high‑temperature capability to laboratory personnel.

Beyond its robust material composition, the cap incorporates an open‑top design that facilitates direct access to the vessel’s contents without the need to remove the entire cap assembly. This design reduces handling time, minimizes exposure to the environment, and supports efficient sampling, reagent addition, or gas exchange during experimental procedures. The cap’s dimensions—approximately 2.1 × 2.1 × 1 inches and a weight of 11.36 oz—provide a compact footprint that fits comfortably within standard laboratory storage solutions while delivering the performance required for rigorous scientific work.

Usage

Laboratory professionals across academic, industrial, and governmental research settings rely on the Corning high‑temperature screw cap for a variety of applications. In synthetic chemistry labs, the cap’s ability to maintain integrity at elevated temperatures enables safe reflux operations and high‑temperature reactions without the risk of cap failure. In analytical chemistry, it serves as a secure closure for vials and flasks used in gas chromatography (GC) and high‑performance liquid chromatography (HPLC) where temperature control is critical for reproducible results. The open‑top feature is particularly advantageous in microbiology and cell culture workflows, allowing sterile sampling or the addition of media without compromising the sterility of the vessel.

Field technicians conducting on‑site environmental testing also benefit from the cap’s durability, as it can endure the temperature fluctuations encountered during transport and field analysis. Its compatibility with standard GL45‑threaded glassware means it can be seamlessly integrated into existing laboratory inventories, reducing the need for additional adapters or specialized equipment. Whether used in a high‑throughput screening facility, a teaching laboratory, or a specialized research institute, the cap delivers consistent performance that supports accurate data collection and reliable experimental outcomes.

Why Choose Us

Choosing Corning for your laboratory sealing solutions means partnering with a brand that has a legacy of scientific innovation and quality assurance spanning more than a century. Each cap undergoes rigorous testing protocols, including thermal cycling, chemical resistance assays, and mechanical stress evaluations, to verify that it meets or exceeds industry standards. The manufacturing process incorporates precision extrusion and injection molding techniques that guarantee uniform wall thickness, consistent thread geometry, and flawless surface finish, all of which contribute to the cap’s long‑term reliability.

Corning’s commitment to customer satisfaction extends beyond product performance. Our dedicated technical support team provides guidance on proper cap selection, installation best practices, and troubleshooting assistance, ensuring that you achieve optimal results in every experiment. Additionally, the company offers a comprehensive warranty that covers material defects, reinforcing confidence in the durability and longevity of the product. By selecting this cap, you benefit from Corning’s extensive supply chain network, which ensures rapid delivery and consistent availability, minimizing downtime in your laboratory operations.

Key Features

• High‑temperature resistance up to 180 °C, enabling reliable sealing for heat‑intensive protocols.
• Durable PBT construction resists chemicals, solvents, and repeated autoclave cycles for extended service life.
• Open‑top design provides quick, hygienic access to vessel contents without full cap removal.
• Standard GL45 thread ensures universal compatibility with common laboratory glassware and equipment.
• Responsive customer support and warranty coverage give users confidence and peace of mind.

FAQ

Can this cap be used with glassware that requires autoclaving?

Yes. The PBT material is rated for repeated autoclave cycles, and the cap maintains its sealing integrity after exposure to high‑temperature steam sterilization, making it suitable for reusable glassware that must be sterilized between uses.

What is the maximum pressure this cap can withstand?

When properly installed on a GL45‑threaded vessel, the cap can safely handle pressures up to 2 atm (approximately 30 psi) without leakage, which covers the majority of standard laboratory applications, including reflux and gas collection setups.

Is the cap compatible with standard laboratory syringes for sampling?

The open‑top design allows direct insertion of sterile syringes or pipettes, facilitating sample withdrawal or reagent addition without the need to fully remove the cap. This feature streamlines workflow and reduces the risk of contamination.

How does the red coloration affect the cap’s performance?

The red pigment is chemically inert and does not impact the cap’s thermal or mechanical properties. It serves primarily as a visual identifier, helping users quickly locate high‑temperature caps among other laboratory accessories.

What warranty does Corning provide for this product?

Corning offers a one‑year limited warranty covering any defects in material or workmanship. Should a cap fail under normal laboratory conditions within the warranty period, Corning will replace it at no cost to the customer.

In summary, the Corning #1395-45HTSC red open‑top high‑temperature PBT screw cap combines superior material performance, user‑friendly design, and comprehensive support to meet the rigorous demands of modern laboratory environments. Its ability to maintain a secure seal at temperatures up to 180 °C, coupled with the convenience of an open‑top configuration, makes it a versatile solution for a wide range of scientific applications. Whether you are conducting high‑temperature syntheses, performing analytical separations, or managing routine sample handling, this cap delivers the reliability and ease of use that researchers expect from a trusted laboratory partner. By integrating this cap into your workflow, you can enhance experimental reproducibility, reduce handling time, and protect the integrity of your samples, ultimately contributing to more efficient and successful research outcomes.