Tin Foil Lined Phenolic Caps offer good chemical resistance and are typically used with solids and powders. Good resistance to hydro-carbons, alcohols, ketones and oils. Not recommended for acids and alkalis.
Aluminium Foil lined caps are appropriate for non-acid, non-alkaline products. Typically used for food applications, these aluminum foil-lined plastic caps can also be used for such products as organic solvents, chrome cleaners, brake fluids and mineral oils.