Aluminium Foil Seal for PET Bottles Aluminium Foil Sealing ensures leak proof. It ensures, Air tight packing suitable for PET bottles & containers, Jars.Non Leakage prevention, PET Jar seal protects container from Moisture, Bacteria, Germs, Dust, Microbes, Organisms, Pathogens, Virus, Etc. How to Seal Aluminium Foil Take FOIL SEAL "Shiny Side” On PET Jar.Non Shiny Side must be face Up, while Sealing.And the other side of "shiny side" will be stick with the Pet Bottle / Jar Neck, by pressing it with heat machine for 3 to 4 Seconds (or) you can use iron which is available in your home (Use 1000 Watts Full Heat).After this process the PET bottle will melt little and stick it with that. CAUTION : 1. Ensure Sealing area of PET & WAD Seal sticking (Shiny) side must be dry while sealing, If seal comes in a contact with Oil (or) Any liquid substance, It will not stick properly. 2. If you put Reverse (No shiny) Side, of seal on bottle, It will Stick on sealing machine (or) Iron.