Let’s Dive into VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only
The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only are essential lab consumables designed for sample storage, preparation, and processing. Manufactured by VWR, these caps provide a secure seal for microcentrifuge tubes, crucial in various scientific and industrial applications. I will delve into my experience, observations, and assessments of these caps after hands-on testing.
My research team needed a reliable cap solution for our existing microcentrifuge tubes to prevent leakage and contamination during high-speed centrifugation and long-term storage. We also wanted to replace all of our current caps. The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only promised a secure seal and compatibility with various tubes.
Upon unboxing, the caps felt robust and well-made, the ethylene propylene O-ring providing immediate reassurance of a tight seal. The caps were uniformly white, indicating high production quality. Compared to cheaper, generic caps we had previously used, these felt much more durable and professional.
We also considered caps from Corning and Eppendorf, but VWR‘s reputation for quality and competitive pricing swayed our decision. The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only were ultimately chosen for their promise of a secure seal, ease of use, and excellent value. I was excited to test these caps and see if they lived up to their promises.
Real-World Testing: Putting VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only to the Test
First Use Experience
I tested these caps in our molecular biology lab, primarily for storing DNA and protein samples. We used them with various microcentrifuge tubes across different experiments including PCR preparation, bacterial culture aliquoting, and enzyme assays. The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only were subjected to varying temperatures, from freezing at -80°C to autoclaving at 121°C.
The caps performed flawlessly in both wet and dry conditions. The screw caps were easy to grip and turn, even when wearing gloves. The caps also provided a positive seal during centrifugation up to 17,000 x g, preventing sample loss.
Initially, I was slightly concerned about the caps’ compatibility with different tube brands, but they fitted perfectly across various tubes. No time was needed to learn anything special to use these caps, they worked. They easily screw on and off. The caps also provided an immediate, reliable seal.
Extended Use & Reliability
After several months of consistent use, the VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only have proven to be incredibly reliable. There has been no noticeable wear and tear or degradation of the ethylene propylene O-ring, despite repeated freezing and thawing cycles. The plastic shows no signs of cracking or discoloration.
These caps are easy to clean, either by autoclaving or by wiping down with ethanol. We have not experienced any issues with cross-contamination. Compared to our previous caps that frequently cracked or leaked, the VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only have exceeded our expectations.
Breaking Down the Features of VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only
Specifications
The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only have specific features. These caps are manufactured from ultra-clear resin which allows for clear content visibility. They feature universal screw threads for compatibility with most popular brand screw caps.
The caps are RNase-, DNase-, and Endotoxin-Free, ensuring sample integrity. The low-profile caps include an ethylene propylene O-ring for a secure seal. The packaging is in resealable bags containing 500 caps.
The FDA CFR 21 compliance assures they are suitable for sensitive applications. The maximum RCF (Relative Centrifugal Force) rating is 20,000 g. These specifications are very important for maintaining sample integrity and preventing contamination.
Performance & Functionality
The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only perform exceptionally well in their intended role. They provide a reliable and leak-proof seal, preventing sample loss during centrifugation and storage. They are also easy to screw on and off, even when wearing gloves.
The caps’ most significant strength is their reliable seal, preventing contamination. The primary weakness is that they are sold as “caps only,” requiring separate purchase of the tubes. These caps definitely exceed expectations.
Design & Ergonomics
The build quality is excellent. The ultra-clear resin is both durable and provides great visibility. The caps are comfortable to handle and easy to grip.
The design is extremely user-friendly. There is no learning curve, and the caps can be easily integrated into existing workflows.
Durability & Maintenance
These caps are designed to last. With proper care, they should withstand numerous freeze-thaw cycles and autoclaving procedures. The caps are simple to maintain and do not require any special cleaning procedures.
Accessories and Customization Options
These caps are sold without accessories. They are designed to be compatible with a wide range of microcentrifuge tubes from various brands. The caps are available in assorted colors (sold separately) for easy sample identification.
Pros and Cons of VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only
Pros
- Reliable Seal: The ethylene propylene O-ring ensures a leak-proof seal, preventing sample loss and contamination.
- Universal Compatibility: The universal screw threads make these caps compatible with most popular brand screw caps.
- High Purity: RNase-, DNase-, and Endotoxin-Free ensures sample integrity in sensitive applications.
- Durable Construction: The ultra-clear resin is robust and can withstand multiple freeze-thaw cycles and autoclaving.
- FDA CFR 21 Compliant: Assures suitability for use in regulated industries and labs.
Cons
- Caps Only: The tubes must be purchased separately.
- White Color Only: May require additional labeling for clear sample identification (unless purchasing the assorted colors).
Who Should Buy VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only?
The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only are perfect for molecular biologists, biochemists, and researchers working with sensitive samples. They would be very useful for clinical labs, pharmaceutical companies, and anyone needing a reliable and contamination-free sample storage solution. Anyone who relies on consistent sealing will benefit.
Anyone looking for an all-in-one solution (tubes and caps together) should skip this product. If your lab protocols are very strict about only using pre-sterilized and individually packed tubes, then these “caps only” may not be the best choice.
A must-have accessory would be a set of assorted colored caps to quickly identify different samples. You may want to use labeling pens for additional clarification.
Conclusion on VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only
Overall, the VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only are an excellent investment for any lab needing a reliable and high-quality capping solution. The price of $111.99 for 500 caps is justified given their performance, durability, and purity.
I would personally recommend these caps to anyone looking to upgrade their lab consumables. The VWR SuperClear Screw Cap Microcentrifuge Tubes 3600-871-000 Nonsterile Caps Only are a dependable product that will help ensure the integrity of your valuable samples. Go grab yourself a pack today!