Brand Store/Macherey-Nagel/Crimp closure, N 20, alu., center hole, Butyl dark gray/PTFE gray, 3.0 mm
BRAND STORE
Crimp closure, N 20, alu., center hole, Butyl dark gray/PTFE gray, 3.0 mm
70234 · 100 Piece(s)
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Catalog No: 70234
Pack Size: 100 Piece(s)
Brand: Macherey-Nagel
Description
These closures with molded Butyl/PTFE septa are only laminated with PTFE in the contact area with the sample. Thus the elastomeric Butyl can achieve on the vial's glass rims a very tight seal, while in comparison a completely PTFE covered septum would have a very slippery surface on the glass and could easily be twisted around.
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