Chart Size Heat Seal Lamination Pouches Laminating Pouch Measures: 15" x 18" (381mm x 457mm). Available thicknesses: 3 Mil. Available finishes: Clear Gloss. Thermal Laminating Card size Pouches for use in a hot pouch laminator machine. Add a slot to any pouch for just $10 per box of 100. Slotted pouches are not returnable. Please verify you have selected the correct side you want punched before placing your order.