Join Date: Jun 2004
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Rep Power: 13
It does not matter that much whether You start with the big or small patch.
The most important is how the 'new' patch bonds to the old, that the caracteristics of the new patch (flexibility/hardness etc) is as close to the original as possible.
If Your boat is polyester/fiberglass, then use polyester fiberglass for repair and not epoxy/kevlar.