The solid silicone stopper without hole is used to seal compatible tubes, flasks and other containers in laboratory and technical work. Its flexible construction and tapered shape allow the stopper to fit an appropriately sized opening. Different sizes are available to match the dimensions of the intended container.
Characteristics
- Flexible silicone construction for insertion sealing.
- Tapered shape with different top and bottom diameters.
- Solid design, without a hole for accessories.
- Acid-resistant, non-toxic, sulfur-free silicone.
- Distinct dimensions across the available size options.
Applications
- Temporary closure of tubes, flasks and other glassware with matching openings.
- Sealing containers during solution preparation and handling when the chemical compatibility of silicone has been checked.
- Organizing samples in laboratory procedures requiring a solid stopper without probe access.
Technical Specifications
- Material: Acid-resistant, non-toxic, sulfur-free silicone;
- Type: Solid tapered stopper, without hole.
| Size | Top diameter (mm) | Bottom diameter (mm) | Height (mm) |
|---|
| No. 1 | 11 | 9 | 18 |
| No. 1B | 13 | 10.5 | 21 |
| No. 2 | 14 | 11 | 20 |
| No. 3 | 16 | 12 | 23 |
| No. 4 | 17 | 13.5 | 25 |
| No. 5 | 18 | 14 | 25 |
| No. 6 | 21 | 17 | 28 |
| No. 7 | 23 | 18 | 28 |
| No. 8 | 26 | 21 | 32 |
| No. 9 | 30 | 25 | 30 |
| No. 10 | 33 | 27 | 38 |
| No. 11 | 36 | 30 | 39 |
| No. 12 | 40 | 32 | 43 |
| No. 13 | 43 | 37 | 45 |
| No. 13A | 47 | 40 | 40 |
| No. 14 | 52 | 45 | 52 |
| No. 15 | 55 | 45 | 57 |
| No. 16 | 61 | 52 | 60 |
| No. 17 | 69 | 57 | 67 |
| No. 18 | 89 | 65 | 54 |
| No. 19 | 122 | 83 | 80 |
Includes
- 1x Silicone Stopper in the selected size.
Frequently Asked Questions
What is a solid silicone stopper without hole used for?
It closes containers with compatible openings by insertion when no tubing or probe passage is needed.
How can the right size for a flask be selected?
Check the inside diameter of the opening and compare it with the top and bottom stopper diameters. The table also specifies stopper height.
Is silicone compatible with every chemical reagent?
Compatibility depends on the substance, concentration, temperature and contact time. The acid-resistant designation does not mean universal compatibility with all reagents.
Do sizes 13 and 13A have the same dimensions?
No. No. 13 has a top diameter of 43mm, a bottom diameter of 37mm and a height of 45mm. No. 13A measures 47mm, 40mm and 40mm, respectively.
How can companies and institutions purchase the solid silicone stopper from LojaLab and request a formal quotation?
Companies, laboratories, educational institutions and research organizations can purchase through LojaLab. For recurring purchases, internal approval processes, research funding, public procurement or formal quotation requirements, contact the sales team with the company or institution details, quantities and order requirements.
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