Ala nwere ike iguzo n'onwe ya, na-eme ka akpa ahụ guzoro ọtọ. Akara zipa, enwere ike iji ya mee ihe ọzọ. Ihe dị n'etiti akpa ahụ bụ ihe nkiri polyester aluminized, nke nwere ọnụ ala dị ọnụ ala, ọdịdị mara mma na ezigbo ihe mgbochi.
Ihe a kapịrị ọnụ nke akpa a bụ PET12/VMPET12+PET12/PE110, nwere ọtụtụ ihe mejupụtara na azụ n'ime VMPET. Na n'elu zipa enwere ike mechie maka ojiji ọzọ, ọ nwere ike iguzo ọtọ ma na-enyere aka igosipụta shelf.
Ngwaahịa a na-eji akwa akwa 3 (PET/VMPET/PE), nke na-eme ka ike nke akpa akpa ahụ dịkwuo mma. Ụdị ọdịdị pụrụ iche na-agbakwụnye mmasị nke ngwaahịa ahụ ma mee ka ngwaahịa ahụ dịkwuo mma.
Ngwaahịa a na-eji 2 n'ígwé ihe (PET/PE), nke na-eme ka ike nke akpa nkwakọ ngwaahịa dịkwuo mma. Ụdị ọdịdị pụrụ iche na-agbakwụnye mmasị nke ngwaahịa ahụ ma mee ka ngwaahịa ahụ dịkwuo mma.
Ngwaahịa a na-eji 4 layers nke ihe onwunwe (PET/VMPET/NY/PE), nke na-eme ka ike nke akpa nkwakọ dịkwuo mma. Ụdị ọdịdị pụrụ iche na-agbakwụnye mmasị nke ngwaahịa ahụ ma mee ka ngwaahịa ahụ dịkwuo mma.