To instal a keel strip you'll need remove all gel down to the outer composite layer in a longitudinal strip wider than your tape. This is true whether using glass or kev tape. Mask the area off.
As as cross linking is not going to happen at this date you'll need an epoxy resin to wet out the tape and peel ply to tack the edges down. After the first wet-out, remove the peel ply and brush on another coat of epoxy, feathering the edges. When set, scuff sand it, masking tape still in place.
The chances your gelcoat will adhere to the epoxy keel tape are close to zero. You will need an epoxy gel coat matching the original.
Much easier to mask the center off, scuff sand it, clean w/ acetone and brush on catalyzed gel.
Kayak Motor Kit
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