20mm Rubber Stopper

( Lyophilization Stoppers, Freeze Drying Stoppers)

Products standard:
1. 20--D2a
2. 20--D3

Descriptions of 20mm Halobutyl Rubber Stoppers:
1. Color: Grey, Red, Black
2. Function: These rubber closures are generally used as pharmaceutical packaging, for example, used as Lyophilization Stoppers, Freeze Drying Stoppers etc.
3. Raw materials: Bromohalobutyl rubber from Exxonmobil Chemical

Advantage of 20mm Halobutyl Rubber Stoppers (Lyophilization Stoppers, Freeze Drying Stoppers):
1. Good sealing properties and self-sealing properties.
2. Excellent chemical stability.
3. Good properties of sterilizing under high temperature or by radiation.
4. Strong water-proof and damp-proof performance.
5. Good resistance to acid, alkali and other chemical interferences.

Packing for Lyophilization Vial Stoppers, Freeze-dry Stoppers:
2 plastic bags in each carton, 33-34 cartons on each pallet-carton:
Plastic bag: (1) containing 4,000 pcs bottle closures; (2) Dimension: 65×55cm
Carton box: containing 8,000 pcs rubber bottle Stoppers
Pallet-cartons dimension: 156×111×107cm.

Parameters of 20mm Halobutyl Rubber Closures (Lyophilization Closures, Freeze Drying Closures):
Inner-diameter: 13.2+/- 0.1mm;
Outer-diameter: 18.8 +/- 0.2mm;
Crown Thickness: 3.3 +/- 0.2mm;
Total thickness: 13.8 +/- 0.25mm.