Categroy List
Film Coated Butyl Rubber Stopper/Teflon Coated Rubber Stopper
Functions:
Suitable for the sealing of those products, whose compatibility & stability is not good with common butyl rubber stoppers.
- 产品描述
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Functions
Film Coated Butyl Rubber Stopper or Teflon Coated Rubber Stopper is suitable for the sealing of those products, whose compatibility & stability is not good with common butyl rubber stoppers.
Specifications
Regular Dimensions in MM
Drawing No.
Feature
Main Specifications(mm)
Top Diameter
Top Thickness
Neck Diameter
Total Height
Coated Chlorobutyl Rubber Stoppers for Sterile Powder Injection Use. Film Material: ETFE/ FEP.
13FM
4 Dots &1 Ring
12.5 ±0.2
2.0±0.2
7.6 ±0.1
5.8 ±0.2
19FM
4 Lines & Sunken
19.0 ±0.2
3.0±0.2
13.5 ±0.1
7.9 ±0.2
20A-FM
4 Lines & Sunken
18.8 ±0.2
3.3 ±0.25
13.15±O.15
7.7 ±0.3
20B-FM
1 Ring
19.5 ±0.1
3.1 ±0.2
13.1 ±0.1
6.5 ±0.2
Film Coated Chlorobutyl Rubber Stoppers for Injection Use. Film Material: ETFE/FEP
13FM
4 Dots & 1 Ring
12.5 ±02
2.0 ±0.2
7.6 ±0.1
5.8 ±0.2
19FM
4 Lines & Sunken
19.0 ±0.1
3.0 ±0.2
13.5±0.1
7.9 ±0.2
20A-FM
4 Lines & Sunken
18.8 ±0.2
3.3+0.25
13.15±0.15
7.7 ±0.3
20B-FM
1 Ring
19.5±0.1
3.1 ±0.2
13.1 ±0.1
6.5 ±0.2
26C-FM
Sunken&1 Big Whole & 1 Small Whole& 4 Ones
25.7 ±02
4.1 ±02
15.5±0.1
8.1±0.2
28B-FM
4 Lines & Sunken & 1 Whole
26.6 ±0.3
3.8 ±0.25
17.8 ±0.2
9.7 ±0.3
32FM
4 Lines & Sunken & 1 Whole
30.8 ±0.3
5.0 ±0.3
23.3 ±0.2
11.6±0.4
32A-FM
4 Lines & Sunken & 1 Whole
31.0 ±02
5.0 ±0.3
23.6*0.2
12.3±0.£
Film Coated Chlorobutyl Lyophilization Rubber Stoppers. Film Material: EFTE/FEP
1SFM-D2
Two Legs& Sunken& 3 Lines
19.0 ±0.1
3.0 ±0.2
13.0 ±0.1
122 ±0.2
20FM-D1
Sunken & 4 Lines
18.8 ±0.1
33 ±0.2
132 ±0.1
12.4 ±0.2
Remark: The sizes can be negotiated.
Advantage
1.High cleanliness standard. Production under 100,000 class cleaning area.
2.Superior service system, with professional technical personnel, to provide customers with supporting and personalized services at any time;
3.Supply well-known pharmaceutical manufacturers home and abroad.
Certificates

ISO 15378 Certification
Packing Details
Inner packing is PE bag; Outer packing is carton.
In the meticulous world of laboratory science, the integrity of an experiment often hinges on the smallest components. Among these, the humble stopper plays a critical role in sealing vessels, protecting contents, and ensuring accurate results. The Teflon coated rubber stopper represents a significant advancement over traditional closures, offering a unique fusion of flexibility and supreme chemical resistance. This combination of properties makes it an indispensable asset in countless applications, from academic research to pharmaceutical manufacturing.
The primary advantage of a Teflon coated rubber stopper is its unparalleled inertness and chemical resistance. The interior core, typically made of a high-quality silicone or rubber compound, provides the essential elasticity needed to form a tight, secure seal in glassware necks of varying tolerances. This flexible core is then enveloped in a seamless, non-stick layer of Teflon (PTFE). This coating creates a virtually impermeable barrier that is highly resistant to virtually all aggressive chemicals, including strong acids, bases, solvents, and oxidizing agents. This prevents leaching, absorption, or reaction between the stopper and the vessel's contents, thereby safeguarding sample purity and ensuring analytical accuracy. Without this protection, a standard rubber stopper could degrade, contaminate the sample, or fail catastrophically.
Furthermore, the non-stick nature of the Teflon coated rubber stopper offers exceptional advantages in terms of cleanability and reusability. Unlike uncoated stoppers, which can absorb compounds and become stained or bonded to glassware, the Teflon surface prevents materials from adhering. After use, the stopper can be easily wiped clean or autoclaved without fear of cross-contamination between experiments. This property not only extends the functional lifespan of the stopper, making it a more cost-effective solution over time, but it also is crucial for maintaining sterile conditions in cell culture or microbiological work. The smooth, inert surface is easy to decontaminate and prevents the harboring of microorganisms.
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