In most cases you will first clean and scar a good sized area around the puncture using a piece of sand paper. Make sure the area you clean and scar is bigger than the the size of the patch you will be using.
By Kevin Tisue, About.com
In most cases you will first clean and scar a good sized area around the puncture using a piece of sand paper. Make sure the area you clean and scar is bigger than the the size of the patch you will be using.
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