DIY TIPS WHEN THERE IS NO LOFT
1. Sewing thick layers: Pull out your power tools, and pre-drill holes for stitches with a small bit.
2. Patching the torn test area with adhesive Dacron: This is suitable for sails with rotten cloth, where the sailor needs to eke out just a little more use. Wipe the repair area with acetone, and then apply two layers of adhesive Dacron.
3. Patching the torn test area with 3M 4200: This is suitable for a sail that retains cloth integrity. Cut a Dacron patch (similar weight to the sail) that is about 1.5 inches longer on each side than the tear. Wipe the repair area with acetone. Spread a thin layer of 3M 4200 Fastcure over one side of the patch. Press the patch over the tear. Be sure the patch stays pressed into place until cured.