April 8, 20197 yr Popular Post A problem that occurs occasionally is to have a natural or oops created hole in a hollow form that you do not want to leave as a hole. Now the question is "do I fix it and if so HOW?" The answer is use a balloon . Find a balloon that will fit inside the piece and inflate it inside the apply filler of your choice to the outside. As an alternative you can use a plastic bag inside and fill it with sand. Edited April 8, 20197 yr by lew
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