Teak Bung Repair -- Pete McGonagle, Swiftsure Yachts
- Remove the screw.
- Seal the screw hole in the fiberglass with a few drops of epoxy.
- Drill out the screw bung hole with a 3/8" flat "pointed" drill bit to an adequate depth -- 1/4" or more. Don't
worry about making the hole too deep as the wood is now being held down by the adhesive sealant
- Us 10mm bungs. Hammer them in with the grain aligned with the decking. The 10mm to 3/8" hole will
provide a tight interference fit.
- Saw off the excess bung with a "Vaughan" Bear Saw BS250D-made in Japan. This flexible, fine-toothed
saw is perfect for sawing the bung flush with the deck and leaving very minimal sanding.
- Sand with 80 to 100 grit paper to smooth.
Note: Don't put the screw back into the hole. This will allow a much deeper hole and thicker bung. As
long as the adhesive sealant under the teak is in good condition and doing its job, the screws are