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Lab cap plugs are essential for maintaining sterile environments and preventing contamination in various laboratory settings. Selecting the appropriate plugs ensures sample integrity and experiment reliability. This guide will help you navigate the key factors to consider for an informed purchase.
Package Contains: 4 Pcs 35 mm black silicone plugs; Size: Drill Hole: 1.38"/35mm; Outside Diameter: 1.77"/45mm; Groove Width: 0.12"/3mm; Inside Diameter: 1.14"/29mm; Height: 0.48"/12.2mm; Fits: 35-38 mm (1-3/8-1-1/2 inch) hole; Note: This product is soft...
Premium Silicone Material: Our rubber plugs for round holes are made of food-grade silicone, which is a safe, non-toxic, soft and pliable material, not easy to crack, shrink, harden or break; Good insulation, flame-retardant, high and low temperature...
Multi-function: BOPOREAE reusable round silicone plugs is suitable for Powder Coating, Painting, Anodizing, Plating & Media Blasting,waterproof plugs, sealing plugs, pipe holes, test tube plugs, rubber bulkheads, caps, cylinder plug heads, bumper hole...
Easy Installation and Better Fixation: Snap into mounting holes with fingertip pressure or rotary insertion, T-type hole plug with card slot, not easily dislodged after installation, mechanical fixing performs better in pressure change or vibration...
Wide Applications: These Small and Large silicone stoppers are widely used for Instrument and meter,aviation industry,transportation, radio motors,make up appliances, furniture manufacture, salt and pepper shakers, flower pots, bottles, brackets, door...
Package Contains: 4 Pcs 48 mm black silicone plugs; Size: Drill Hole: 1.89"/48mm; Outside Diameter: 2.17"/55mm; Groove Width: 0.2"/5mm; Inside Diameter: 1.63"/41.5mm; Height: 0.47"/12mm; Fits: 48 mm (1-7/8 inch) hole; Note: This product is soft silicone...
Premium Silicone Material: Our rubber plugs for round holes are made of food-grade silicone, which is a safe, non-toxic, soft and pliable material, not easy to crack, shrink, harden or break; Good insulation, flame-retardant, high and low temperature...
Multi-function: BOPOREAE reusable round silicone plugs is suitable for Powder Coating, Painting, Anodizing, Plating & Media Blasting,waterproof plugs, sealing plugs, pipe holes, test tube plugs, rubber bulkheads, caps, cylinder plug heads, bumper hole...
Easy Installation and Better Fixation: Snap into mounting holes with fingertip pressure or rotary insertion, T-type hole plug with card slot, not easily dislodged after installation, mechanical fixing performs better in pressure change or vibration...
Wide Applications: These Small and Large silicone stoppers are widely used for Instrument and meter,aviation industry,transportation, radio motors,make up appliances, furniture manufacture, salt and pepper shakers, flower pots, bottles, brackets, door...
Last update on 2026-09-01 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Lab Cap Plugs
Sterilization and Compatibility
Ensure the cap plugs are compatible with your sterilization methods, whether it's autoclaving, dry heat, or chemical sterilization. Some materials can degrade or deform under high temperatures or with prolonged exposure to certain sterilizing agents. Check the manufacturer's specifications for recommended sterilization procedures and any material compatibility notes to avoid compromising the plug's integrity or your lab's sterility.
Frequently Asked Questions
What is the main purpose of lab cap plugs?
Lab cap plugs are primarily used to seal openings in laboratory glassware and containers. This prevents contamination from the environment and helps maintain the integrity of samples or reactions within.
How do I determine the correct size plug?
Accurate measurement of the opening you need to seal is essential. Refer to the manufacturer's sizing chart, which usually provides dimensions like inner and outer diameter or the neck size compatibility.
Can these plugs be used in high-temperature applications?
Many plugs, especially those made from silicone, are designed for high-temperature resistance and can be autoclaved. Always check the material specifications and recommended temperature limits provided by the manufacturer.
Are there different types of plugs for different purposes?
Yes, plugs vary by material, size, and features. Some are vented or filtered for specific applications like cell culture, while others are designed for general sealing of tubes or flasks.
How should I clean and sterilize lab cap plugs?
Cleaning and sterilization methods depend on the plug material. Common methods include autoclaving, dry heat, or chemical sterilization. It's crucial to consult the manufacturer's guidelines for compatibility and recommended procedures.
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