OL12T is a biaxially oriented polyester film with an amorphous polyester heat seal layer on one side and corona treated on the opposite side. It is used as a heat sealable lidding film in packaging refrigerated and frozen foods. Strong, aggressive seals to APET, PETG, CPET, Polyester coated paperboard and PVC Dual ovenable Corona treatment promotes adhesion of inks and adhesives Higher hot tack and a thicker seal layer than either OL-F or OL2-F and can be used in hot fill applications Self-venting Excellent grease and oil resistance Can withstand freezing temperatures down to -400F and heating up to 4000F May be hard to peel without shredding