The Polyethylene Foam (PE) Cap Liner is a versatile, general-purpose sealing insert designed to fit inside plastic or metal screw caps to create a reliable, leak-resistant seal. Made from a soft, compressible polyethylene foam, this liner conforms to minor surface irregularities on the bottle neck — providing consistent sealing performance across a wide range of container types and materials.

PE foam liners offer good resistance to a broad range of chemicals, making them a practical choice for cleaning products, automotive fluids, agricultural chemicals, food-grade liquids, and personal care products. Available in thicknesses from 0.6mm to 1.5mm and in tailored sizes to suit your specific cap diameter, these liners can be ordered in volume from Nextech Packaging with the short Canadian lead times your production schedule demands.