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Qopak Clear Borosilicate Vial, Black Phenolic Pulp/Tin Foil Lined Cap
Clear Borosilicate Vial with Black Phenolic Pulp/Tin Foil Lined Caps
The attached black thermoset (phenolic) caps with tin foil liners offer great chemical resistance and are commonly used with solids and powders. These caps with tin foil liners provide resistance to hydro-carbons, alcohols, ketones and oils: not recommended for acids and alkalis.