DWK Life Sciences (Kimble) Black Phenolic Screw Thread Caps with Cone-Shaped LDPE Liners
These black phenolic caps have a securely mounted polyethylene cone-shaped liner which offers a two part seal. The closure forms a seal around the rim and the polyseal cone forms a seal against the inner diameter of the vial opening. The design has superior torque retention and excellent sample storage and re-sealing properties. The specially formulated phenolic resin withstands the effects of repeated autoclaving and is resistant to stress cracking.