Pressure-Sensitive Seal
Pressure-sensitive polystyrene foam liners with pressure-activated adhesive, designed to provide an airtight and tamper-evident seal for round screw-neck jars and containers.
No induction equipment required: simply place the liner inside the cap, tighten firmly and allow 24 hours for a full, reliable seal.
They help prevent leaks and drips, reduce moisture and oxygen ingress and provide clear tamper evidence for pharmaceutical, food, cosmetic and chemical products.
Recommended for dry goods, granules, tablets and high-viscosity formulations such as creams or sauces; not suitable for aqueous liquids or oils.
Single-use liners available in multiple diameters compatible with our wide-mouth jars and pots, offering a practical and cost-effective way to reinforce product safety and customer confidence.