
( Brand: Zaplyte ), ( Part Type: Leg Vial Stopper ), ( Net Weight: 0.465 ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( UPC: 641832113850 )
The **Zaplyte 641832113850 200-Piece Set of 7.5mm (0.3-inch) Butyl Rubber Stoppers with Legs** is a high-quality, precision-engineered solution designed to meet the rigorous demands of laboratory, pharmaceutical, and biotechnology applications where sterile sealing and consistent performance are paramount. Crafted from **FDA-compliant, Type I butyl rubber**, these stoppers are engineered to provide an exceptional balance of elasticity, durability, and chemical resistance, ensuring reliable sealing for vials, ampoules, and other glass or plastic containers. The **7.5mm (0.3-inch) diameter** makes them ideal for standard-sized vials commonly used in serum storage, reagent preparation, and sample preservation, while the **integrated legs** enhance stability by preventing the stopper from sinking into the vial s neck, reducing the risk of contamination and ensuring a secure, leak-proof fit. Each stopper is meticulously manufactured to strict tolerances, guaranteeing uniform sizing and a snug, frictionless seal that maintains sterility over extended periods, even under varying temperature or pressure conditions. The butyl rubber composition also offers superior resistance to moisture, oils, and many organic solvents, making these stoppers suitable for a wide range of applications, including the storage of sensitive biological samples, pharmaceutical formulations, and volatile liquids. Whether used in clinical diagnostics, research laboratories, or pharmaceutical manufacturing, this set of 200 stoppers provides a cost-effective, reliable sealing solution that adheres to industry standards for cleanliness and performance. Their compatibility with standard vial sizes and ease of use further simplify workflows, making them a trusted choice for professionals who demand precision and consistency in their laboratory processes.
### **Pros and Cons of Buying Zaplyte 641832113850 (200pcs 7.5mm/0.3" Vials, Rubber Stoppers, Legs, Butyl Stopper)**
#### **Pros:**1. **High-Quality Material** The butyl rubber stoppers are known for their excellent sealing properties, preventing contamination and preserving the integrity of stored substances (e.g., pharmaceuticals, chemicals, or biological samples).
2. **Standardized Size (7.5mm/0.3")** This is a widely used vial stopper size, ensuring compatibility with most standard glass or plastic vials, reducing the need for custom adapters.
3. **Legs for Stability** The stoppers have integrated legs, which help prevent them from sinking into viscous liquids or settling unevenly in the vial, improving handling and reducing clogging risks.
4. **Cost-Effective for Bulk Purchase** Buying in bulk (200pcs) typically offers a lower per-unit cost compared to smaller quantities, making it economical for laboratories, pharmaceutical manufacturers, or research facilities.
5. **Compatibility with Autoclaving** Butyl rubber stoppers are generally autoclavable (though always check manufacturer guidelines), allowing for sterilization without degradation.
6. **Chemical Resistance** Butyl rubber is resistant to many solvents, oils, and mild acids/bases, making it suitable for a range of applications.
7. **Easy to Sterilize** Can be sterilized via autoclaving, gamma irradiation, or chemical methods, depending on the application.
8. **Wide Industry Use** Commonly used in pharmaceuticals, biotech, medical testing, and chemical storage, ensuring reliability in professional settings.
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#### **Cons:**1. **Potential for Degradation Over Time** Butyl rubber can degrade when exposed to prolonged heat, UV light, or certain chemicals, which may compromise sealing effectiveness.
2. **Limited Temperature Range** While butyl rubber is durable, extreme temperatures (very high or low) can cause brittleness or swelling, affecting performance.
3. **Not Ideal for Highly Reactive Substances** Some aggressive chemicals (e.g., strong oxidizers, concentrated acids/bases) may react with butyl rubber, leading to leaching or contamination.
4. **Sourcing Reliability** If purchasing from a lesser-known supplier, there may be concerns about consistency in quality or authenticity, especially for critical applications.
5. **Waste Disposal Considerations** Rubber stoppers are not biodegradable and may require proper disposal as medical or hazardous waste, depending on usage.
6. **Potential for Dust or Contamination** If not stored properly, stoppers can accumulate dust or debris, which may contaminate samples during use.
7. **Compatibility with Some Vial Types** While 7.5mm stoppers are standard, some specialized vials (e.g., those with unique threading or sealing mechanisms) may not fit perfectly.
8. **Cost for Non-Bulk Orders** If only a small quantity is needed, the per-unit price may be higher than alternatives like silicone or halogenated butyl stoppers.
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### **Conclusion:**The **Zaplyte 641832113850 (200pcs 7.5mm butyl rubber stoppers with legs)** is a practical and cost-effective choice for general laboratory, pharmaceutical, or chemical storage needs. Its standardized size, sealing reliability, and bulk pricing make it suitable for routine applications where butyl rubber s properties align with the requirements. However, for applications involving extreme temperatures, highly reactive substances, or long-term storage, alternative materials (e.g., halogenated butyl or silicone) may be more appropriate.
### **Recommendation:** - **Buy if:**- You need a bulk, cost-effective solution for standard vial sealing.
- Your application involves moderate chemical exposure and temperature ranges.
- Compatibility with 7.5mm vials is confirmed.
- You prioritize butyl rubber s sealing and autoclavable properties.
- **Consider alternatives if:**- Your substances are highly reactive or require extreme temperature resistance.
- You need stoppers for specialized vials with non-standard threading.
- Long-term storage (>5 years) is required, as degradation risks increase.
- **Verify supplier credibility** to ensure quality and authenticity, especially for critical applications.
For most general laboratory or pharmaceutical uses, this product is a solid, reliable choice. Always cross-reference with your specific application guidelines before purchasing.
Suitable for: 7.5mm /0.3 inch Glass Vial. Specification:Material: Butyl Rubber. It forms a good seal and is suitable for long-term storage of liquids or solids. Inside diameter: 7.5mm /0.3 inch.
It is washable and reusable. Outer diameter: 12mm /2.8 inches. height : 10mm /0.4 inches. You can put your trust in us.
For shipping and handling charges for specific item, please refer to the item listing page more details. Rubber Bottle Caps - These self-healing stoppers are worth it if you want to seal things, rubber drain feature an inert coating on the surface that helps better bottle, allowing contents be stabilized. How to Use - These rubber caps can be punched with injection holes so that culture media injected an needle without removing the stopper. It is more clean and easier to use.
Suitable for oral liquid bottles, original solution essential oil freeze-dried etc.Material - Made of butyl rubber it has good resistance and acid alkali can maintain stable performance in high temperatures.