Perfect tool to protect petri dish interior contents from dust, moisture and other environmental effects. Waterproof. Chemically inert and resistant to most organic solvents and caustic agents. Remains flexible in moderate freezing temperatures. Can resist up to 100°C. Stretches and widens up 50% of original length. Clings around the petri dish body and seals irregular perimeters of petri dishes with leak-proof tightness. Also can be used to seal bottle necks and caps.

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