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Bromobutyl Stoppers

Bromobutyl Stoppers are also called Bromobutyl Rubber Stoppers and Bromobutyl Plugs, which are commonly used to seal medicine vials and bottles for low permeability to gases and liquids, good resistance to chemicals, weathering and ozone, etc, also known as Pharmaceutical Stoppers.

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  • JBRS-02
Bromobutyl Stoppers

Bromobutyl Stoppers are also called Bromobutyl Rubber Stoppers and Bromobutyl Plugs, which are commonly used to seal medicine vials and bottles for low permeability to gases and liquids, good resistance to chemicals, weathering and ozone, etc, also known as Pharmaceutical Stoppers.
Bromobutyl Stoppers 
Bromobutyl Stoppers are made of Bromobutyl Rubber material. As a kind of halogenated butyl rubber, Bromobutyl Stoppers also have excellent resistance to weathering, ozone, and hot air; very good resistance to acidic and basic chemicals; very low permeability to gases and liquids; very good rheological properties, which can keep harmful substance from pharmaceutical.  
Compared to butyl rubber, Bromobutyl Rubber has a enhanced adhesion and faster cures.
Bromobutyl Rubber Stoppers 

Bromobutyl Stoppers Properties and Benefits
Low permeability
Cure versatility
Faster cure rate
Cure compatibility
Good adhesion
Good heat resistance
Good bio-safety
 Pharmaceutical Stoppers
Bromobutyl Stoppers and chlorobutyl rubbrers stoppers are both commonly used in medicine vials and bottles sealing. Compared with chlorobutyl rubbrers stoppers, Bromobutyl Rubber Stoppers have advantages and disadvantages as following:
 
Bromobutyl Stoppers- advantages:
a. Better stability and longer life span
b. More available vulcanization systems and higher cleanliness  
 Like polyamine vulcanization, during vulcanization process, It can avoid existence of harmful substance, such as sulfur (accelerant containing sulfur) and zinc oxide, ensuring higher cleanliness of stoppers and then reducing pollution and side-effects on pharmaceutical.
 
Bromobutyl Rubber Stoppers- disadvantages:
a. There exist a terrible smell during high temperature sterilization.
  Bromobutyl Rubber Stoppers generally adopt sulfur vulcanization system, so heat resistance is worse slightly. Due to bromine element is relatively active, stoppers throw off a terrible smell during high temperature sterilization.
b. There is a greater influence in Hemolysis experiment
 During Sulfur vulcanization, bromobutyl Rubber Stoppers need to add a accelerating vulcanizing agents, which has influence on stopper’s Hemolysis experiment.

Butyl Stoppers
Xiamen Better Silicone Import and Export Company is specialized in mold-making (since 1998) and production of Bromobutyl Rubber Stoppers according to customer’s 2D/3D designed drawings or samples. Therefore, we have rich experience and in-depth expertise in applications of bromobutyl Rubber stoppers for sealing medicine vials and bottles. We make three mold plates to avoid parting line on stopper’s surface for better sealing effect.
our parting line
rubber stopper

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Office Address: 7F7B09, Harmony Square, No.2 Huli Avenue, Huli District, Xiamen , China.
  Factory Address: 165th, Tong'An Park, Industrial Zone, Tong'An District, Xiamen City, China
 Post Code: 361000
Tel: 86 592-5616001
E-mail: 
info@better-silicone.com

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