List of Products
Lacquers as mentioned are meant to work as a barrier between the products filled in the tube and the metal surface within. In case of products which are highly reactive or even corrosive, a pigmented lacquer is used as it is more durable and acts as an effective barrier.
For products where a lacquer barrier is recommended though it may not be very critical.
Depending upon the product internal coating is developed to sustain the product without affecting it.