How to Seal Boat Trailer Lights
- 1). Remove the lenses from the lights housings by unscrewing the lenses with a screwdriver. Insert new seals or gaskets between the lenses and the light housings.
- 2). Spread a thin coat of marine silicone caulking around the inside edge of the lenses without getting caulking on the faces.
- 3). Put the lenses back on the light housings.