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Surf Foil High Density Mast Insert

Product image 1Surf Foil High Density Mast Insert
Product image 2Surf Foil High Density Mast Insert
Product image 3Surf Foil High Density Mast Insert
Product image 4Surf Foil High Density Mast Insert

Regular price $ 32.95

Surf Foil High Density Mast Insert

Install this High Density Polyurethane Foam Foil Mast Insert into the bottom of your foil blank. (2) pockets for 10.5" centerfin channels are pre-routed and spaced at industry standard 3.50" [90mm] apart on center to accept the foil mast base plate.

Choose the insert with the fin boxes pre-installed or just the insert without fin boxes.

Use a 1 1/2" long router bit to install the insert.


12" x 5" x 1.50" deep

How to install a surf foil high density mast insert:

1. Trace the insert and hand route the pocket for a tight fit - or you can make a plywood template jig. If there's play in the box install lay pieces of innegra, carbon, or fiberglass in the pocket to take up space and provide more support.
2. Install the insert with epoxy resin, tape over the finbox slots so resin doesn't get in and laminate a patch over the insert with Innegra or carbon and laminate the bottom of the board.
3. Cut through the reinforcement with a razor blade to remove the tape when the resin gels (about 45 mins - 1 hour). 

4. Tape over the finboxes again and sealcoat with epoxy resin



Ask a Question
  • Can you use this with poly, or just eps? What type of resin would you use with poly?

    The high density surf foil mast can be inserted into EPS or Polyurethane foam cores. Use epoxy resin to set it in either type of foam.

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