Bonded-Liner Caps

Polypropylene caps with bonded PTFE/low bleed silicone septa. Ideal for use with volatile solvents, corrosive chemicals and sensitive compounds.

An ultrasonic welding process bonds the liner to the cap, eliminating the risk of adhesive contamination and bond failure often associated with autoclaving or other high temperature/stress operations.

The PTFE film on the face of the liner imparts an inert, chemically resistant surface appropriate for the containment and storage of compounds, such as volatile solvents and corrosive chemicals.

The low bleed silicone has excellent resealing properties and possesses very good compression set characteristics to ensure a good seal over time.

SizeColorDescriptionPkgProduct No.
58mmWhiteOpen top molded-hole cap w/ bonded 0.060" PTFE/silicone septa25 1BT58-400WOT
53mmWhiteOpen top molded-hole cap w/ bonded 0.060" PTFE/silicone septa25 1BT53-400WOT
24mmRedOpen top molded-hole cap w/ bonded 0.060" PTFE/silicone septa100 1BT24-414ROT
24mmWhiteClosed top cap w/ bonded 0.060" PTFE/silicone liner50 1BT24-400W
22mmWhiteClosed top cap w/ bonded 0.060" PTFE/silicone liner50 1BT22-400W
20mmWhiteClosed top cap w/ bonded 0.060" PTFE/silicone liner50 1BT20-400W