| http://www.w3.org/ns/prov#value | - The overcoat 12 is made of a material that is solid at ordinary temperatures (20???-30??? C.) but which liquifies upon heating to 45???-150??? C., preferably 50???-80??? C., more preferably 55???-75??? C. Examples of such material are waxes such as paraffin wax and rice wax, and the like.
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