How to Clean Fiberglass Boats

Written by ris lexington
  • Share
  • Tweet
  • Share
  • Email

The first rule in caring for your fibreglass boat is to clean it often. The second rule is to clean from top to bottom. There are many boat cleaning products designed for specific surfaces. Using a product meant for one surface on another surface can sometimes cause damage. Always try a gentle cleaner first, and, for tough jobs, a biodegradable degreaser. Here are a few tips on cleaning a fibreglass boat.

Skill level:

Things you need

  • Rubber gloves
  • Pail
  • All purpose cleaner
  • Nylon bristle scrub brush
  • Biodegradable degreaser
  • 600-grit sandpaper

Show MoreHide


  1. 1

    Fill a pail with hot water and add 1/4 cup of an all purpose cleaner. Use a scrub brush to remove dirt, grime and dried blood from fishing trips.

  2. 2

    Use a degreaser to remove bird droppings from your fibreglass boat. Allow the degreaser to sit for a few moments, then scrub the soiled area with a scrub brush.

  3. 3

    Remove stubborn fibreglass stains with 600-grit sandpaper. Wet the sandpaper and gently scrub the stain.

  4. 4

    Apply wax to your fibgerlass boat to make the next cleaning easier.

Tips and warnings

  • Use caution if you clean your boat with a sponge or mop. Grit that's collected in a sponge or mop may scratch your boat. The flexible bristles of nylon brushes will not grind foreign matter into the surface of your boat.
  • Do not use dry sandpaper to remove stubborn stains. Dry sandpaper is very abrasive and may scratch your boat. Wet your sandpaper prior to use.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.